. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. PsEDNOS • Chernova 503. Figure 13. Right pectoral girdle and fin of two Psednos. (A) P. mirabilis. Holotype. Coracoid damaged. (B) P. sargassicus. Holotype. Length of lower lobe and notch rays unknown. and measurements based on Stein's figure are plaeed in square brackets. Body humpbacked, [depth above occi- put times in SL or greater than depth at anal-fin origin]. Titmk rather long, preanal SL. [Dorsal and anal fins overlap V2 of caudal]. Anal-fin origin below about 8th dorsal-fin ray. Anus be- tween b


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. PsEDNOS • Chernova 503. Figure 13. Right pectoral girdle and fin of two Psednos. (A) P. mirabilis. Holotype. Coracoid damaged. (B) P. sargassicus. Holotype. Length of lower lobe and notch rays unknown. and measurements based on Stein's figure are plaeed in square brackets. Body humpbacked, [depth above occi- put times in SL or greater than depth at anal-fin origin]. Titmk rather long, preanal SL. [Dorsal and anal fins overlap V2 of caudal]. Anal-fin origin below about 8th dorsal-fin ray. Anus be- tween bases of lower pectoral-fin lobes. Small urogenital papilla present [in male]. Pyloric ceca short, flat, and blunt. Head in SL, width unknown. Depth at occiput slightly larger than head length (107% HL), anterodorsal profile evenly sloping, slightly concave. Snout about equal to eye diameter. Nostril with slightly raised rim [level with eye center]. Eye times in HL. Mouth superior, distinctly oblique, forming an angle of about 50° to horizontal. [Symphysis of upper jaw level with eye center.] Maxillary reaching verti- cal at anterior V2 of eye [mouth cleft to vertical at nostril]. Symphyseal knob pre- sent. "Teeth in both jaws simple, moder- ately stout, slightly recurved. Upper jaw teeth in irregular oblique rows forming narrow band less than four teeth wide, uniserial posteriorly; mandibular teeth in about 13 oblique rows forming band sim- ilar to upper jaw. Suborbital bones extend anteriorly forming distinct projections above snout on either side of upper jaw" (Stein 1979: 7). [Chin low, lower jaw not massive. Prominent tip of lower jaw (re- troarticular process) angled at ca. 90° and on vertical to posterior margin of eye.] Gill slit [vertical, about equal to eye di- ameter], completely above pectoral fin base [dorsal end level with lower margin of eye; ventral end level with lower % of subocular space]. Opercular flap small tri- angular [operculum post


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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology