289 
25 between pectoral and ventral, 25 between ventral and anal, 12 between anal 
and caudal* 
i 
D* 14, begins little behind ventral, ends far before anal: A* 16; pectoral 
7; ventral 7, median, ^ength 245 mn* without caudal* (Regan and Trewavas.) 
Atlantic* 
Diplolychnus mononema Regan and Trewavas 
Dipl olychnus monone ma PUG-AIT and TRIT/fAYAS, banish Dana Sxped* Oceanogr. Rep.•, ho* 
5, Hay 30, 1929, p.28, pi.5, fig.2. 35. 17 ° 43 ’ TT. *64 ° 56 ', 1000 meters, 
• _ 
Caribbean Sea west of St* Croix* 
Depth 6; head 4 3/4 to 5 2/3. /ge 5 to 7 in head; barbel long as head, 
like D* lucifer except white tip longer, about equals black swollen part* 
Post ocular part of luminous organ l/2 eye* Small oblong luminous patch just 
behind preopercle* ^ateral photopliores 22 to 25 between gill opening and ven- 
tral, 23 or 24 between ventral and anal* “entral series 10 or 11 between isth¬ 
mus and pectoral, 25 or 26 be ween pectoral and ventral, 22 to 25 between ven- 
* 
tral and anal, 12 between anal and caudal* 
D* 13, begins little behind ventral, ends far before anal; A* 16 or 17; 
pectoral 7; ventral 7, median# ^ength. 255 ram. without caudal* (Regan and Tre¬ 
wavas .) 
Atlantic* 
Diplolychnus bifilis Regan and Trewavas 
Diplolychnus bifilis PA GAR and TRE17AVAS, Danish Dana Exped. Oceanogr* Rep*, Do • 
5, 'lay 30, 1929, p.28, pi.5, fig.3. 15. 46 ° 28 ’ W. 8° 1 ', 4000 meters; 
off Ireland# * , 
Depth 7; head 4 l/2. Eye 5 in head; barbel little over l/2 of head, like 
