287 
Postocular luminous organ half of eye, Lateral photophores 22 between gill 
opening and ventral, 17 between ventral and anal. Ventral series 11 between 
isthmus and pectoral, 23 between pectoral and ventral, 17 between ventral and 
anal, 12 (5 - 7) between anal and caudal* * 
D. 14, begins .just behind ventral, ends well before anal; A, 18; pectoral 
7; ventral 7, postmedian. Length 208 mm. without caudal. (Regan and Trewavas)] 
G ulf of Panama* 
Borostomias macristius Regan and Trewavas 
Borostomias macristius REGAN and TRE17AVAS, Danish Dana Exped. Oceanogr* Rep., 
No#5, Hay 30, 1929, p.27, pl.4, fig.2, tect fig. 18 (end of barbel). N, 6 
* 
40 1 ’ll. 80 ° 47 1 , 3000 meters. Gulf of Panama. 
o 
Depth 6 l/2: head 4 3/4. bye 6 i/2 in head; barbel 1 l/2 in length of 
head; barbel 1 l/2 length of head, ending in small white bulb, with 2 slender 
filaments arising from base; termihal part of black part not swollen, bearing 
pair of small luminous organs. 
Postocular luminous organ l/2 eye. Lateral photophores 21 between gill open* 
ing and ventral, 15 between ventral and anal. Ventral series 11 between isthmus 
and pectoral, 20 between pectoral and ventral, 15 between ventral and anal, 12 
(5 4 7} between anal and caudal. 
D. 16, high, begins above ventrals and ends little before anal; A. 17; 
pectoral 8; ventral 7, median.. Length 155 mm. without caudal. (Regan and 
"-rewavas •) 
Gulf of Panama. 
Genus DIPLOLYCHNUS Regan and Trewavas 
