309 
Depth 7 l/4 to 8; head 6 l/Z to 7, width 2 1/3 to 3. Snout 5 l/2 to 6 in 
head from snout tip; eye 4 l/5 to 5 1/5, greater than snout, 1 3/4 to 2 in 
interorbital; maxillary extends 2 l/4 to 3 eye diameters behind eye, length very 
» 
slightly less than head measured from snout tip; 8 subequal teeth on each pre¬ 
maxillary and 28 to 31 on each ramus of lower jaw; 2 teeth each side of vomer 
and 2 on each palatine; barbel inserted opposite middle of eye; barbel 4 l/8 to 
6 in combined head and body without caudal, with subterminal moderate ellipsoid 
bulb and variable terminal filament nearly or quite long as eye; interorbital 
2 3/5 to 3, rather broadly convex. Gill rakers as 1 + 5 or 6 small groups of 
very small spines or denticles, usually 2 in each group; gill filaments 1 1/3 
in eye. 
Small photopbore at middle of lower eye edge; rather narrowly triangular 
luminous organ behind and below eye close along upper maxillary edge; 2 close 
t. set white photophores above upper opercular angle and one level with lower eye 
» 
edge at middle of opercle; lateral photophores 25 to 26 between gill opening 
and ventral fin, 23 or 24 between ventral fin and caudal base; 6 branchiostegals; 
7 or 8 on isthmus to hind edge of gill opening, then lower series 28 to ventral 
fin, ■finally 14 above front of anal fin. 
D. 15 or 16, fin height 2 3/4 to 3 l/4 in total head length; A. 16 to 18, 
fin height 2 4/5 to 3 l/4; caudal 1 3/4 to 2, deeply forked, lobes small, slender, 
sharply pointed; least depth of caudal peduncle 6 to 6 l/3; pectoral 1 1/8 to 
1 l/6. 
Dark blackish brown generally# Luminous organ below eye posteriorly cream 
white# Iris neutral black# Photophores on body whitish# Pins all whitish# 
Pacific Ocean# 
4420. D.5331# Hermana Mayor I s land (E.), N. 13 ° E« 7# 30 miles (|h t # 
