. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 33 b. Two separate postabdominal spines; anal subcaudal gap less than times anal-pre- anal gap; dorsal rays 9 A. lijchntis complex 4 3a. Dorsal blade low, its height less than one-third its length; body margin not markedly raised posterior to dorsal blade; ventral keel scales do not extend far below abdominal photophores; no laterally directed sphenotic spine near dorsal, posterior edge of orbit A. affinis (p. 34). b. Dorsal blade high, its height greater than one-third its length; bod
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes • Baird 33 b. Two separate postabdominal spines; anal subcaudal gap less than times anal-pre- anal gap; dorsal rays 9 A. lijchntis complex 4 3a. Dorsal blade low, its height less than one-third its length; body margin not markedly raised posterior to dorsal blade; ventral keel scales do not extend far below abdominal photophores; no laterally directed sphenotic spine near dorsal, posterior edge of orbit A. affinis (p. 34). b. Dorsal blade high, its height greater than one-third its length; body margin markedly raised posterior to dorsal blade; ventral keel scales extend well below alsdominal photo- phores forming flaplike process; prominent laterally directed sphenotic spine near dorsal, posterior edge of orbit A. gigas (p. 38).. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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