Description 



D. 16 (14-17); A. 18 (17-19); P. 13-14; AO 10 (9-11) + 9-10 (8-11), total 19-20 (18-21); gill 

 rakers 6-7 + 1 -^ 15-17 (18), total 23-24 (22-26); vertebrae 42-43 (41-44). 



PLO nearer lateral line than to pectoral origin; VLO midway between lateral line and 

 pelvic origin. A line through PVO,.j passes through PO^... PO:i and P0-, slightly elevated, the 

 rest on same level. SAO series in nearly straight, vertical line; SAO, over anus; SAO;) its 

 diameter below lateral line. SAOi.j interspace a little smaller than that of SAO^.;). AOp-Prc 

 series usually continuous. Pre pattern 3 + 1 or 4 -i- 1, rarely 2 -t- 1 or 5 -I- 1. 



Size: To 133 mm. (Norman, 1937). 



Least depth of capture: Andriashev recorded a capture at not over 100-150 m at negative 

 temperatures (time not stated). 



Distribution: Known from Drake Strait and southern Pacific and Indian Oceans south of 

 the Antarctic Convergence. 



Gymnoscopelus (Gymnoscopelus) opisthopterus 



Fraser-Brunner, 1949 



Fig. 199 — Gymnoscopelus (G.) opisthopterus, 111.0 mm. From Andriashev 

 (1962, p. 269, fig. 31). 



Description 



Counts from two specimens, holotype included. 



D. 15; A. 16-17; P. 14-15; AO 9-10 + 7-8; total 17-18; gill rakers 8 -I- l-i- 19, total 28; 

 vertebrae 43. 



Photophores small, dim, often difficult to distinguish from small specks of luminous tissue 

 on body. PLO about midway between lateral line and pectoral origin; VLO about midway 

 between pelvic origin and lateral line. A line through PVOi.j passes through or slightly 

 behind PO2 Six PO, nearly on same level; 5 VO, the middle 3 slightly raised above level of first 

 and last. SAO series in a very obtuse angle; SAOi over anus and its diameter above level of last 

 VO. SAO.) 1.0 to 1.5 times its diameter below lateral line. SAO^ :i interspace nearly twice that 

 of SAOi.j. AOp-Prc series continuous; Pre pattern 3 -1- 1 or 5 in a continuous curve (the only 

 available specimen was damaged caudally). 



Si2e.Tolll.0mm. 



Least depth of capture: to 500 and 900 m (two captures). 



Distribution: Presently known only from southern Indian Ocean (60°-50° S). 



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