3*>7 
Dec#30, 1927, p.107, figs# 55 -a(end of barbel) 56 (detail), N. 22 ° 43 T 
• j # 74 23 1 • • 74 23 1 , 8000 feet# - REGA1T and TREWAVAS, Danish Dana Ex- 
ped# °ce xnogr# Rep., No.6, March 10, 1930, p.127, fig.121 -a (end of barbel) 
(compiled)# 
Depth 7; head 7 2/5# %re 6 l/s in head; maxillary with 18 erect teeth; 
pair of teeth on vcmer, 6 or 7 on each palatine; barbel 4/5 length of head, 
* 
black, with long terminal filament; terminal half with series of 4 anterior 
and 1 l/2 ( or 2) pairs of lateral tapering branches. 
Postocular luminous organ shorter than eye. Lateral photophores 30 or 31 
between gill opening and ventral, 12 between ventral and anal. Ventral series 
0 
11 between isthmus and pectoral, 32 between pectoral and ventral, 11 between 
ventral and anal, 
• * 
D. 18; A# 22; pectoral 1 long ray nearly l/4 of fish, with flat terminal 
expansion; ventral rays 7# 
Length 280 mm# without caudal* (Regan and Trewavas.) 
Atlantic, 
Genus IDIACANTHUS Peters 
Idie an thus PETERS, Monatsber. Akad. Wiss. B erlin, 1876, p.486. Type Idiacanthys 
fas ciola PETERS, monotypic. 
Bathyophis GUNTHER, Ann. Mag. Nat. Hist., ser«5, vcl.2, 1878, p.181. Type 
" 
Bathyophi s fe ro% GUNTHER, monotypic. 
Body greatly elongate. Mouth cleft slightly curved, lower jaw projecting. 
Premaxillary and lower jaw with single row of unequal, depressible, bicuspid 
teeth; maxillary with series of minute oblique teeth. Pair of teeth on vomer; 
