292 
Rhadinesthes dec imus R" ''AIT end TItE’TA’vAS, Danish Dana Dxped. Ocearogr. Rep., Do. 
5, May 30, 1929, p.29, fig.20 (type). 
Depth 11; head 6 l/2. %e 6 l/4 in head; maxillary equals eye; longest 
fang l/2 eye; barbel 1/2 head to bulb, stem blade with luminous patches most 
developed near swollen end, which separated rom bulb by constriction; bulb 
rounded, white, with 4 filaments arising together from base; lower jaw 9/10 
of head. 
Post ocular luminous organ small, well separated from eye. An undulating 
white line along middle of side. Ventral photophores 6 between isthmus and pec¬ 
toral, 26 between ventral and anal, 15 between anal and caudal• 
D. 12, inserted far behind ventral, ends far before anal; A. 19, ends at 
distance from caudal equal to its own base length; pectoral 7 or 8; ventral 
8 , nearly median. length 515 mm. without caudal. (Regan and Trewavas.) 
Atlantic. 
Genus ITEOHESTHES Rehan and Trewavas 
Neonesthes RUGAE and TREWAVAS, Danish Dana Exped. Oceanogr. Rep., Vo.5, Ray 50, 
1929, p.30. Type lie one st he s macr o ly clonus REGAIN and TREVARGS, monotypic* 
Body moderately long. Premaxillaries curved upwards in front and meeting at 
angle. Teeth in both jaws feeble, i'axillary teeth erect and similar to others. 
Pair of teeth on vomer and series of weal: palatine teeth* Gill arches with 
numerous pairs of slender teeth, close set, much longer than jaw teeth, also 
s 
imileir series on ceratohval. Post-temporal rati er slender. Stomach rather 
small. Postocular luminous organ very large. Anal r ys 25 to 28, ending hear 
caudal• 
