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Hatchetfishes Stock Photos and Images

Pygmy hatchetfish (Carnegiella myersi), two Pygmy hatchetfishes Stock Photo
RMF003BB–Pygmy hatchetfish (Carnegiella myersi), two Pygmy hatchetfishes
Marbled hatchetfish (Carnegiella strigata) close to Manacapuru, Brazil. Meetyourneighbours.net project Stock Photo
RMW7TEHB–Marbled hatchetfish (Carnegiella strigata) close to Manacapuru, Brazil. Meetyourneighbours.net project
spotted hatchetfish (Gasteropelecus maculatus), side view Stock Photo
RMAJBX4A–spotted hatchetfish (Gasteropelecus maculatus), side view
Spotted Hatchetfish, gasteropelecus maculatus Stock Photo
RMGDDDB4–Spotted Hatchetfish, gasteropelecus maculatus
Sternoptyx diaphana, family Sternoptychidae deep sea fishes Stomiiformes deep sea hatchetfishes Stock Photo
RMB5WF5F–Sternoptyx diaphana, family Sternoptychidae deep sea fishes Stomiiformes deep sea hatchetfishes
gasteropelecus sternicla / common hatchetfish / silver hatchetfish Stock Photo
RMBCXRA0–gasteropelecus sternicla / common hatchetfish / silver hatchetfish
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 11. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEPJR–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 11. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
giant hatchetfish, greater hatchetfish, greater silver hatchfish (Thoracocharax securis), side view Stock Photo
RMAJBX72–giant hatchetfish, greater hatchetfish, greater silver hatchfish (Thoracocharax securis), side view
RIVER OR COMMON HATCHETFISH gasteropelecus sternicla Stock Photo
RMGDDD8D–RIVER OR COMMON HATCHETFISH gasteropelecus sternicla
marbled hatchetfish (Carnegiella strigata), swimming Stock Photo
RMEBKTY4–marbled hatchetfish (Carnegiella strigata), swimming
pygmy hatchetfish (Carnegiella myersi), at the water surface Stock Photo
RMDAJM7Y–pygmy hatchetfish (Carnegiella myersi), at the water surface
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 19. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEP6Y–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 19. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
marbled hatchetfish (Carnegiella strigata), little shoal Stock Photo
RMCNY6MC–marbled hatchetfish (Carnegiella strigata), little shoal
marbled hatchetfish (Carnegiella strigata), lateral view Stock Photo
RMCNWTRW–marbled hatchetfish (Carnegiella strigata), lateral view
marbled hatchetfish (Carnegiella strigata), lateral view Stock Photo
RMCNWTT9–marbled hatchetfish (Carnegiella strigata), lateral view
pygmy hatchetfish (Carnegiella myersi), at the wate rsurface Stock Photo
RMDAJM3Y–pygmy hatchetfish (Carnegiella myersi), at the wate rsurface
RIVER OR COMMON HATCHETFISH gasteropelecus sternicla Stock Photo
RMGDDD9J–RIVER OR COMMON HATCHETFISH gasteropelecus sternicla
Fishes in Fresh Water Aquarium Stock Photo
RMGDDCY9–Fishes in Fresh Water Aquarium
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 69. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEN4N–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 69. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
pygmy hatchetfish (Carnegiella myersi), at the water surface Stock Photo
RMDAJM3H–pygmy hatchetfish (Carnegiella myersi), at the water surface
spotted hatchetfish (Gasteropelecus maculatus), fish among water plants Stock Photo
RMCNYD51–spotted hatchetfish (Gasteropelecus maculatus), fish among water plants
Dadyburjor's hatchetfish, Orange hatchetfish, Orange chela (Chela dadyburjori), swimming Stock Photo
RMEBN9T0–Dadyburjor's hatchetfish, Orange hatchetfish, Orange chela (Chela dadyburjori), swimming
giant hatchetfish, greater hatchetfish, greater silver hatchfish (Thoracocharax securis) Stock Photo
RMAN7XRD–giant hatchetfish, greater hatchetfish, greater silver hatchfish (Thoracocharax securis)
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes Baird 85. f ^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGDRAX–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes Baird 85. f ^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
spotted hatchetfish (Gasteropelecus maculatus), swimming in front of water plants, Suriname Stock Photo
RMADA7JD–spotted hatchetfish (Gasteropelecus maculatus), swimming in front of water plants, Suriname
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 35. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGENNK–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 35. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 87. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGDR8X–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 87. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 15 SBQ. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEPAC–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 15 SBQ. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes Baird 37 D E P H. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGENK6–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes Baird 37 D E P H. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baud 25. 1 ' ' V â 1 , V. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEP4J–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baud 25. 1 ' ' V â 1 , V. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 61. CN o ^0 u s O). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEN86–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 61. CN o ^0 u s O). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 47. s o E E >^ i (U c o o I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGENDP–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 47. s o E E >^ i (U c o o I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 39. E E O u < X U D 0) a. o CN. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGENGY–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 39. E E O u < X U D 0) a. o CN. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 17 6 . o CM Jf%, CN CN CO X o ^0 U , o. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEP80–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 17 6 . o CM Jf%, CN CN CO X o ^0 U , o. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 53. D c -Q E o 0) o u "o -^ 'o 5 o X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGENB8–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 53. D c -Q E o 0) o u "o -^ 'o 5 o X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 93. CN O ^0 CO O P if o o LU o > c Q. O 0). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGDR64–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 93. CN O ^0 CO O P if o o LU o > c Q. O 0). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 77. 75 JQ E o a U o c o -c a o c O o X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEN0X–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 77. 75 JQ E o a U o c o -c a o c O o X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 95. CO o < X I— < 0£ a D- ? .a o a. CN tN.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGDR5F–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 95. CO o < X I— < 0£ a D- ? .a o a. CN tN.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 45. o Q E o CD O U < E o E 'a c o O X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGENE8–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 45. o Q E o CD O U < E o E 'a c o O X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 65. E E o O If) o CO CO (U u X O X J) "S Q. O O) N. â ^ 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEN6D–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 65. E E o O If) o CO CO (U u X O X J) "S Q. O O) N. â ^ 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Boird 71. <u a a -a J2 E o o u J3 O â D o o O -O o 3 o X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGEN3D–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Boird 71. <u a a -a J2 E o o u J3 O â D o o O -O o 3 o X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 13 from Maurolicus through Polyipmts to Argyropelectis. In Polyipmis, the inter- opercle is similar in shape to Maurolicus, but somewhat less broad. The preopercle has developed a ventral spine. A reduction in the anterior process of the interopercle, which now covers only the posterior ven- tral margin of the preopercle, may be observed in ArgyropeJecus. The pre- opercle, while similar in form to Polyipmis, has a lateral spine in addition to the ven- tral. Sternoptyx is somewhat indepen- Stock Photo
RMRGEPDX–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 13 from Maurolicus through Polyipmts to Argyropelectis. In Polyipmis, the inter- opercle is similar in shape to Maurolicus, but somewhat less broad. The preopercle has developed a ventral spine. A reduction in the anterior process of the interopercle, which now covers only the posterior ven- tral margin of the preopercle, may be observed in ArgyropeJecus. The pre- opercle, while similar in form to Polyipmis, has a lateral spine in addition to the ven- tral. Sternoptyx is somewhat indepen-
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 101. Figure 77. Polyipnus matsubarai; after Schultz, 1961. reaches midline; lateral border of dark- dorsal pigment straight from dorsal spine to caudal peduncle; dark pigment spots mark lateral midHne, pigment striations present on trunk. Distribution (Fig. 63). Restricted to the western North Atlantic; abundant in the Caribbean and Gulf of Mexico from the coast of Venezuela to the straits of Florida; occurs off the outer islands of the West Indies and less abundantly along the east coast Stock Photo
RMRGDR3Y–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 101. Figure 77. Polyipnus matsubarai; after Schultz, 1961. reaches midline; lateral border of dark- dorsal pigment straight from dorsal spine to caudal peduncle; dark pigment spots mark lateral midHne, pigment striations present on trunk. Distribution (Fig. 63). Restricted to the western North Atlantic; abundant in the Caribbean and Gulf of Mexico from the coast of Venezuela to the straits of Florida; occurs off the outer islands of the West Indies and less abundantly along the east coast
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baiid 31. Figure 18. Photophore characteristics: genus Sternoptyx. Abbreviations: see p. 6. bladder present (see above for osteological description). Genus ArgyropeJecus Cocco, 1829 Argijropelecus Cocco, 1829: 146 (type species: ArgyropeJecus hemigijmnus Cocco, 1829, bv monotypy). Fleurothysls Lowe, 1843: 64 (type species: Sterno- ptyx olfersi Ciivier, 1843, by original designa- tion ). Sternoptychides Ogill^y, 1888: 1313 (type spe- cies: Sternoptychides amahUis Ogilby, 1888, by monotypy). Diapi Stock Photo
RMRGENXB–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baiid 31. Figure 18. Photophore characteristics: genus Sternoptyx. Abbreviations: see p. 6. bladder present (see above for osteological description). Genus ArgyropeJecus Cocco, 1829 Argijropelecus Cocco, 1829: 146 (type species: ArgyropeJecus hemigijmnus Cocco, 1829, bv monotypy). Fleurothysls Lowe, 1843: 64 (type species: Sterno- ptyx olfersi Ciivier, 1843, by original designa- tion ). Sternoptychides Ogill^y, 1888: 1313 (type spe- cies: Sternoptychides amahUis Ogilby, 1888, by monotypy). Diapi
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 9 ized by a modification of the first neural spine into a short triangulate, vertical blade. The second neural spine often sup- ports the first. In marked contrast, the gonostomatid genera examined (also Vin- ciguerria, see Weitzman, 1967b) show little modification in this area, and the first neural spine is elongate and forms an integral part of the upper caudal lobe. Stemoptyx shows a high degree of special- ization with considerable reduction or fusion of elements. Fohjipnus shares with Stock Photo
RMRGEPKX–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 9 ized by a modification of the first neural spine into a short triangulate, vertical blade. The second neural spine often sup- ports the first. In marked contrast, the gonostomatid genera examined (also Vin- ciguerria, see Weitzman, 1967b) show little modification in this area, and the first neural spine is elongate and forms an integral part of the upper caudal lobe. Stemoptyx shows a high degree of special- ization with considerable reduction or fusion of elements. Fohjipnus shares with
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 99. Figure 75. Polyipnus polli; after Norman, 1930. bar reaching toard midline; ventral border of dorsal pigment in straight line, from lateral photophore to caudal pe- duncle; dark pigment spots on midline and between midline and border of darker dorsal pigment; pigment striations present on trunk. Distribution (Fig. 63). Restricted to the southeastern Atlantic along the west African coast from the Gulf of Guinea to 10°S latitude. Polyipnus asteroides Schultz Figure 76 Polyipnus asteroi Stock Photo
RMRGDR4G–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 99. Figure 75. Polyipnus polli; after Norman, 1930. bar reaching toard midline; ventral border of dorsal pigment in straight line, from lateral photophore to caudal pe- duncle; dark pigment spots on midline and between midline and border of darker dorsal pigment; pigment striations present on trunk. Distribution (Fig. 63). Restricted to the southeastern Atlantic along the west African coast from the Gulf of Guinea to 10°S latitude. Polyipnus asteroides Schultz Figure 76 Polyipnus asteroi
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 51. Figure 33. Geographic variation in gill raker number in A. hemigymnus, pigment forms A and B. A =: NE Atlantic; B = NW Atlantic; C = Gulf of Mexico; D = Mediterranean; E = Indian Ocean; F = Soutfiern Ocean (Pacific); G = N Pacific; H =: Pacific (California). Numbers refer to sample size. of about 35°N along the North African coast and associated islands; essentially absent from the tropical Atlantic; small to moderate catches in the southwestern At- lantic represent this species; taken Stock Photo
RMRGENCK–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 51. Figure 33. Geographic variation in gill raker number in A. hemigymnus, pigment forms A and B. A =: NE Atlantic; B = NW Atlantic; C = Gulf of Mexico; D = Mediterranean; E = Indian Ocean; F = Soutfiern Ocean (Pacific); G = N Pacific; H =: Pacific (California). Numbers refer to sample size. of about 35°N along the North African coast and associated islands; essentially absent from the tropical Atlantic; small to moderate catches in the southwestern At- lantic represent this species; taken
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 81. 30 SL so Figure 62. Regression of lower jaw length (JL) on standard length (SL) in S. diaphana (A) and S. pseudobscura (B) from the Tropical Atlantic. ridged folds; die posterior section diin walled and extensible, six to ten pyloric caecae, short straight intestine, and a rel- atively large well-developed liver. Gonads, when mature, lie horizontally and laterally in the body cavity; cavity lined with pig- mented membrane; nepliritic tissue is not as well developed as in other genera. S Stock Photo
RMRGDRDF–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 81. 30 SL so Figure 62. Regression of lower jaw length (JL) on standard length (SL) in S. diaphana (A) and S. pseudobscura (B) from the Tropical Atlantic. ridged folds; die posterior section diin walled and extensible, six to ten pyloric caecae, short straight intestine, and a rel- atively large well-developed liver. Gonads, when mature, lie horizontally and laterally in the body cavity; cavity lined with pig- mented membrane; nepliritic tissue is not as well developed as in other genera. S
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 43. â igure 28. Argyropelecus hemlgymnus; R/V CHAIN, Cruise 60; Station 1299; SL 30 mm. 604; Handrick, 1901: system, light organs); 1 (anatomy, nervous Collett, 1903: 108; Ledenfeld, 1905: 170 (light organs); Braner, Regan, 1908: 218; (lai^vae, fig.); Ziig- and Byrne, 1913: 21 1906: 106 (larvae, fig.) Ehrenbaum, 1909: 357 mayer, 1911: 52; Holt (larvae, fig.); Jespersen, 1915: 6; Jespersen and Taning, 1919: 220 (lai-vae, eye muscles): Nusbaum-Hilarowicz, 1923: 10 (anatomy): Barnard, 1925: Stock Photo
RMRGENER–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 43. â igure 28. Argyropelecus hemlgymnus; R/V CHAIN, Cruise 60; Station 1299; SL 30 mm. 604; Handrick, 1901: system, light organs); 1 (anatomy, nervous Collett, 1903: 108; Ledenfeld, 1905: 170 (light organs); Braner, Regan, 1908: 218; (lai^vae, fig.); Ziig- and Byrne, 1913: 21 1906: 106 (larvae, fig.) Ehrenbaum, 1909: 357 mayer, 1911: 52; Holt (larvae, fig.); Jespersen, 1915: 6; Jespersen and Taning, 1919: 220 (lai-vae, eye muscles): Nusbaum-Hilarowicz, 1923: 10 (anatomy): Barnard, 1925:
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 75. -r- 6 âIâ 8 -igure 56. Geographic variation in gill raker count in j. pseudobscura. A ^ Caribbean; B =: N Central Pacific; Z ;= Indian Ocean; D := Marshall Islands. Numbers refer o sample size. Sternoptyx diaphana Hermann Figure 58 Sternoptyx diaphana Hermann, 1781: 33. In accordance with article 75a(i) Int. Code Zool. Nomen., a neot>'pe is hereby designated: Neo- type MCZ 46402; 11° 06'N, 78° 2rW; 8/7/66; R/V ANTON BRUUN, Cruise 19; Station 813. Cuvier and Valenciennes, 1849: 41 Stock Photo
RMRGEN1Y–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 75. -r- 6 âIâ 8 -igure 56. Geographic variation in gill raker count in j. pseudobscura. A ^ Caribbean; B =: N Central Pacific; Z ;= Indian Ocean; D := Marshall Islands. Numbers refer o sample size. Sternoptyx diaphana Hermann Figure 58 Sternoptyx diaphana Hermann, 1781: 33. In accordance with article 75a(i) Int. Code Zool. Nomen., a neot>'pe is hereby designated: Neo- type MCZ 46402; 11° 06'N, 78° 2rW; 8/7/66; R/V ANTON BRUUN, Cruise 19; Station 813. Cuvier and Valenciennes, 1849: 41
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 89. igure 66. Po/yipnus sp/nosus; modified from Gijnther, 1887. (p. (S6); differs from P. spinosus in its onger basal post-temporal spines; shorter oreopercle spine; more raised first supra- ibdominal photophore, somewhat shorter 30st-temporal spine in relation to its base- :o-dorsal spine length, and higher gill •aker count. Description. D. 13-14; A. 15-17; P. 13- L5; total gill rakers (23) 24-28; vertebrae 33-34. Medium to large species, seldom ex- ceeding 70 mm SL; trunk broadly tapering Stock Photo
RMRGDR7K–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 89. igure 66. Po/yipnus sp/nosus; modified from Gijnther, 1887. (p. (S6); differs from P. spinosus in its onger basal post-temporal spines; shorter oreopercle spine; more raised first supra- ibdominal photophore, somewhat shorter 30st-temporal spine in relation to its base- :o-dorsal spine length, and higher gill •aker count. Description. D. 13-14; A. 15-17; P. 13- L5; total gill rakers (23) 24-28; vertebrae 33-34. Medium to large species, seldom ex- ceeding 70 mm SL; trunk broadly tapering
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 113. CD O CN E "5 Q. n (It LO -13 CN "D (U £ XI n a) 1— c -n n o c X o (1> O) 01 <u *- u t/i c H C2 n o ^ o o o E o M o o "^ V CO n (U E. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum Stock Photo
RMRGDR2J–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 113. CD O CN E "5 Q. n (It LO -13 CN "D (U £ XI n a) 1— c -n n o c X o (1> O) 01 <u *- u t/i c H C2 n o ^ o o o E o M o o "^ V CO n (U E. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 57 45 15-. 20 BO S L Figure 39. Geographic variation in the regression of body depth (BD) on standard length (SL) in A. aculeatus. A NW Atlantic; B = Gulf of Mexico; C = NE Atlantic; D = Caribbean; E = Pacific (Chile). Marr, 1948: 140; Misra, 1952: 367; Haig, 1955: 321; Fowler, 1956: 27; Koefoed, 1961: 1. rgtiropdecus olfersi: Barnard, 1925: 153; Smith, 1957: 37 (?); Bright and Paquegnat, 1969: -29. Argtjropelccus Itjchntis hjchnus Schultz, 1961: 587 (in part); 1964: 241;" Blache, Stock Photo
RMRGENA0–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 57 45 15-. 20 BO S L Figure 39. Geographic variation in the regression of body depth (BD) on standard length (SL) in A. aculeatus. A NW Atlantic; B = Gulf of Mexico; C = NE Atlantic; D = Caribbean; E = Pacific (Chile). Marr, 1948: 140; Misra, 1952: 367; Haig, 1955: 321; Fowler, 1956: 27; Koefoed, 1961: 1. rgtiropdecus olfersi: Barnard, 1925: 153; Smith, 1957: 37 (?); Bright and Paquegnat, 1969: -29. Argtjropelccus Itjchntis hjchnus Schultz, 1961: 587 (in part); 1964: 241;" Blache,
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 41. N Zoo 400 • 600 < Oir 0 • • 800 0 looo • ISoo «* aO B • D • 10 20 30 FISH H R Figure 26. Diurnal vertical distribution of A. gigas determined by rate of capture with depth during the day (D) and night (N). A z= Pacific (Chile); B = Gulf of Gulnear C = Gulf of Mexico; D = NE Atlantic. Argtjropeleciis affinis: Jespersen, 1915: 6; Roule and Angel, 1933: 46- Bnen, 1935: 52; Nybelin, 1948: 23; Dollfus, 1955: 1. Species distinction. See A. affinis (p. 34). Description. D. 9 (10); A. 12-13; Stock Photo
RMRGENFP–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baud 41. N Zoo 400 • 600 < Oir 0 • • 800 0 looo • ISoo «* aO B • D • 10 20 30 FISH H R Figure 26. Diurnal vertical distribution of A. gigas determined by rate of capture with depth during the day (D) and night (N). A z= Pacific (Chile); B = Gulf of Gulnear C = Gulf of Mexico; D = NE Atlantic. Argtjropeleciis affinis: Jespersen, 1915: 6; Roule and Angel, 1933: 46- Bnen, 1935: 52; Nybelin, 1948: 23; Dollfus, 1955: 1. Species distinction. See A. affinis (p. 34). Description. D. 9 (10); A. 12-13;
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