Fig. 114 — Diaphus elucens, male, 44.0 mm. 



SAO in a nearly perpendicular line that passes through or near the vent and far behind 

 VO.^; SAO3 occasionally slightly before a line through SAO,.j. SAO3 and Pol touch lateral line. 

 VLO at least its diameter nearer pelvic base than to lateral line; PLO about two of its diamet- 

 ers nearer lateral line than to pectoral origin. Penultimate AOa-AOpi interspace 

 greater than that of Prc-AOp. Pre interspaces progressively wider. Body proportions (Table 19) 

 are given for D. elucens from the Central Pacific and North Atlantic Oceans. 



Size: To about 60 mm. 



Least depth of capture: To 85 m at night. 



Distribution: In the eastern Pacific Ocean D. elucens is known only from the central 

 region, near and south of Hawaii (Fig. 108). 



Diaphus rolfbolini 



Wisner, 1971 



Fig. 115— Diaphus rulfhoUni . holotype, 44.5 mm. From Wisner (1971, p. 48, fig. 5). 



Description 



D. 15 (14-16); A. 14-15 (16); P. 12 (11-13); AO 6 (5-7) -t- 5 (6), total 11 (10-12); gill rakers 8-9 

 (10) -H 1 + 16(15-17), total 25-26 (24-27); vertebrae 35 (34-36). Coordinated counts of AO 

 photophores and gill rakers are given in Table 20. 



All upper photophores well below lateral line. SAO series in a steeply oblique line that 

 passes well behind VO.-,. SAO, about two of its diameters behind aline through SAO, 2; SAOa.a 

 interspace about twice that of SAO,. j. First and last AOa slightly elevated. Last 3 Pre evenly 

 spaced in a straight, rather flatly oblique (approaching horizontal) line. 



122 



