2136 
Diaphus faustinoi new species 
Depth 3 4/5; head 2 3/4, width 2 l/2» Snout 7 1/4 in head; eye 
3 3/4, greater than snout or interorbital; maxillary extends well behind 
eye but not to well inclined hind preopercle edge, slender, length 1 2/5 
in head; interorbital 3 l/8, low. Gill rakers 7 12, lanceolate, 1 l/2 
eye; gill filaments 2/3 of gill rakers. 
Scales 30? in lateral line to caudal base, not enlarged, tubes 
prominent, simple; 3 above, 3 below. Caudal base scaly. Scales very 
caducous, most all fallen. 
s- 
Antorbital luminous organ rather long, along greater part of front eye 
edge; 1 opercular photophore on line with lower eye edge and pectoral fin 
origin; 3 equidistant veiled branchiostegals; 5 pectorals, first interspace 
longest, fourth photophore elevated nearly level with upper subpectoral, 
over third posteriorly; 1 suprapectoral, little behind pectoral origin 
about lowest fourth between pectoral fin origin and lateral line; 2 sub- 
pectorals, first or lower midway between first pectoral and upper 
subpectoral, which close below bases of lowest pectoral rays; 4 ventrals, 
first and second close, third well elevated or about level horizontally 
- itr 
with upper subpectoral or midway between second and fourth; 1 supra- 
ventral about upper 2/5 between lateral line and ventral fin base; 4 4 
anals, first elevated level with third ventrals; 3 supraanals in line from 
last ventral, uppermost well below lateral line or about last third between 
lateral line and vent; 2 posterolaterals, first or lower little behind and 
above last anteroanal, upper higher though well below lateral line; 4 
precaudals, equidistant, last 2 arching up towards and below lateral line. 
Suprapectoral with pale luminous body below about twice its own diameter. 
