Lampanyctus nobilis 



Tuning, 1928 



Fig. 173 — Lampanyctus nobilis, 86.2 mm. 



Description 



D. 14-15; A. 18 (17-19); P. 14(13); AO 6 (5-7) + 9 (8-10), total 15 (14-16); gill rakers3 (4)+ 1 

 + 9 (8-10), total 13 (12-14); vertebrae 38 (37-39). 



This species may be easily recognized by the rather far back position of last Pre, over bases 

 of caudal rays, and by the slightly but distinctly elevated VO^, which is not displaced forward 

 toward VO,, the VO series remaining about equally spaced. In general, a line through SAO^ 

 and SAO:, passes a little before VOj, and PVO, and PVO,. are in oblique line with PO2. The 

 Prc-AOp interspace is either distinct or not present (this character appears variable). 



Supracaudal gland has 4 to 5, infracaudal gland 10 to 11, well developed luminous scales, 

 the latter filling the infracaudal space. 



Size: To about 100 mm. 



Least depth of capture: Between 100 and 200 m at night. 



Distribution: In the eastern Pacific this species is known only from the Hawaiian area. It 

 appears to occur in warm waters of all oceans. 



Lampanyctus macropterus 



(Brauer, 1904) 



Fig. 174 — Lampanyctus macropterus, 45.0 mm. From Nafpaktitis and Nafpaktitis 



(1969. p. 50, fig. 61). 



Description 



D. 13-15; A. 18-19; P. 14 (13-15); AO 6 (5-7) + 9 (8-10), total 15 (13-16); gill rakers 3-1- 1 + 9 

 (8-10), total 13 (12-14); vertebrae 38 (37-39). 



VO2 elevated and displaced forward to about its diameter behind vertical from posterior 

 margin of V0|, but never to over or before VO,. AOa series notably curved; AOa..^ interspace 

 about twice as large as others. First 2 Pre often closely spaced and slightly smaller than last 2; 



186 



