Diaphus pacificus 



Parr, 1931 



Fig. 103 — Diaphus pacificus. male, 31.8 mm. 



Description 



D. 14 (13-15); A. 12 (11-13); P. 10 (9); AO 4-5 + 4 (5), total 8-9 (10); gill rakers 7 (6-8) -H 1 + 

 13 (12-14), total 20 (19-22); vertebrae 32 (31-33). 



PLO and VLO respectively much nearer pectoral and pelvic bases than to lateral line. 

 SAO3, Pol, and upper Pre two or three diameters below lateral line. First Aoa slightly elevated 

 to about its diameter below level of SAO j; last AOa often slightly elevated. Pre usually evenly 

 spaced, but the Prc3.4 interspace may be a little greater than the rest. Vn larger than Dn, often 

 with a dorsal lobe that extends up behind Dn, particularly in males; this lobe of Vn may then 

 be misinterpreted as an Ant. Luminous scales at PLO large, nearly filling space between PLO 

 and pectoral fin, the tissue in rather straight vertical lines. 



Size: To about 35 mm. 



Least depth of capture: To 90 m at night. 



Distribution: Apparently confined to the eastern tropical Pacific (Fig. 104); it has not been 

 taken elsewhere. 



Fig. 104 — Capture localities (or Diaphus pacificus. 

 114 



