. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 94 Bulletin Museum of Comparative Zoology, Vol. 142, No. 1. Figure 71. Polyipnus omphus; R/V DISCOVERY; Station 5509; SL 43 mm. counts; shorter preopercle and dorsal spines; l^roader body, photophore and pig- ment characteristics. P. laternatiis differs from P. ompluts in its broader caudal peduncle; shorter, more compact subcaudal photophores, supra-anal and supra-abdom- inal photophore characteristics, slightly shorter preopercle spine, and relatively larger eye. Description. D. 13-14 (15); A. (15) 16-17; P. ;
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 94 Bulletin Museum of Comparative Zoology, Vol. 142, No. 1. Figure 71. Polyipnus omphus; R/V DISCOVERY; Station 5509; SL 43 mm. counts; shorter preopercle and dorsal spines; l^roader body, photophore and pig- ment characteristics. P. laternatiis differs from P. ompluts in its broader caudal peduncle; shorter, more compact subcaudal photophores, supra-anal and supra-abdom- inal photophore characteristics, slightly shorter preopercle spine, and relatively larger eye. Description. D. 13-14 (15); A. (15) 16-17; P. ; gill rakers (18) 19-22; vertebrae 32-33 (34). Small to medium size species, rarely ex- ceeding 55 mm SL; body relatively long and narrow, tapering into broad caudal peduncle, its width greater than width of subcaudal photophores; eye large, orbital diameter usually less than six times into SL; post-temporal spine long, thin, its total length variable (usually about one-half the diameter of orbit); dorsal spine short; preopercle spine short, broad, triangulate; abdominal keel scales smooth, not ex- tended far beyond body margin; subcaudal photophores closely allied, little space bc- tvveen each photophore; supra-anal photo- phores raised well above anals, with first supra-anal slightly lower than second; first supra-abdominal photophore raised well above other two; second supra-abdominal even with or lower than third; jaws medium to small; teeth minute; vomerine and palatine teeth small but prominent; gill rakers long, spinose on inner surface; pigment in preservative dark dorsally, dark i:)igment bar usualK' does not reach mid- line; prominent, dark spots along trunk midline; myomerelike pigment striations dorsally and vertically from midline. Distribution (Fig. 63). Restricted to the western Atlantic; abundant in the Carib- bean off Venezuela and the central Amer- ican coast, in the lesser Antilles, off Puerto Rico, Cuba, and in the straits of Florida; not reported from the C
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