S. n. nannochir is apparently a deeper-living form than S. leucopsarus . Aron (1960) 

 reported many captures of the latter species, but none of the first, in the North Pacific Ocean; 

 most of Aron's sampling was at depths above 225 m at night, with but few to 400 m. Pearcy 

 (1964) reported 2 specimens of S. n. nannochir from 23 tows taken between and 500 m, and 

 39 specimens from 24 tows taken between and 1000 m, all about 50 mi (80 km) off Newport, 

 Oregon. 



Parvilux Hubbs and Wisner, 1964 



Body elongate, slender, moderately compressed, the musculature rather weak and flaccid 

 as in deep-living lampanyctids. Caudal peduncle moderately deep, about half the greatest 

 depth of body. SOA in straight or slightly angulate oblique line. Procurrent caudal rays stiff 

 and spinelike. Body photophores very small. PO i highly, PO,, slightly, elevated. Upper Pre at 

 lateral line and widely separated from the rest. Pectoral fins very weak and short. 



Key to species of Parvilux 

 la. Supracaudal and infracaudal glands short, of about 4 luminous scales each. VLO nearer 



lateral line than to ventral profile. SAO3 over or before a vertical 



from anal origin P. ingens 



lb. Supracaudal and infracaudal glands longer, of about 6 or 7 luminous scales each. VLO 



nearer ventral profile than to lateral line. SAO.t well behind a vertical 



from anal origin P. boschmai 



Parvilux ingens 



Hubbs and Wisner, 1964 



Fig. 152 — Parvilux ingens. holotype, 160.0 mm. From Hubbs and Wisner 1964, p. 459, 



fig. 4). 



Description 



D. 14-17; A. 15-18; P. 10-13; AO 6 (5-7^+ 7 (6-8), total 13 (11-15); gill rakers 5 (4-6>f H- 12 

 (11-14), total 17 (15-19); vertebrae 37 (36-38). 



PO4 elevated to about level of PVO^; PO.i elevated by about its diameter above level of PO^ 

 and POfi. VLO below lateral line by about one-third of distance from VLO to ventral profile and 

 about over VO,; 3 to 6 VO (usually 4). SAO series slightly angulate, first 2 in line with VO.^, 

 uppermost at lateral line and about over anal origin. AOa series level. AOp and Pre series not 

 continuous. 



162 



