. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Arapaimidae .0^ >»" »,»'* V>»^'^ ^0^^' ^o^°'^ /, 22-23. 20-21 NOTOPTEROIDEI to the anterior end of a cartilagenous basihyal" (Nelson, 1968; 269) (see Taverne [1979] for numerous other characters); 18, numerous unique features of the gill arches (Nelson, 1968) including the structure of the basibranchials and infra- pharyngobranchials; 19, loss of the orbitosphenoid (Greenwood ef a/., 1966: 362) (see Taverne |1979| for numerous other characters); 20, "osteoglossomorph type" of otophysic connec
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Arapaimidae .0^ >»" »,»'* V>»^'^ ^0^^' ^o^°'^ /, 22-23. 20-21 NOTOPTEROIDEI to the anterior end of a cartilagenous basihyal" (Nelson, 1968; 269) (see Taverne [1979] for numerous other characters); 18, numerous unique features of the gill arches (Nelson, 1968) including the structure of the basibranchials and infra- pharyngobranchials; 19, loss of the orbitosphenoid (Greenwood ef a/., 1966: 362) (see Taverne |1979| for numerous other characters); 20, "osteoglossomorph type" of otophysic connection (see Greenwood, 1973); 21, ventral throat musculature containing an anteroposteriorly oriented intermandibularis posterior muscle that is not fused with the interhyoideus; 22, medial process of the second and third infrapharyngobranchials of each side overlapping in the midline (Nelson, 1968); 23, uniquely specialized infraorbital bones (Nelson, 1969b); 24, utriculus completely separated from the sacculus and lagena, 25, lateral line without pores; 26, brain with greatly enlarged cerebellum; 27, dentary sensory canal is an open groove rather than enclosed (Nelson, 1973); 28, cerebellum encloses most of the rest of the brain; 29, well-developed electrogenic and electroreceptive capability (amongst many other unique features of this family); 30, ventral hypohyal lacking; 31, ventral bony scutes present. (Drawings of fishes from J. S. Nelson [1976], courtesy of John Wiley Publishing Co.). 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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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
