374 
and slender translucent appendage with very small white bulb at end. 
Postocular luminous organ l/2 to 2/3 long as eye. Lateral photophores 21 
or 22 between gill opening and ventral, 14 between ventral and anal. Ventral 
series 8 -f 2 between isthmus and pectoral, 23 between pectoral and ventral, 14 
or 15 between ventral and anal, 10 or 11 between anal and caudal. 
« -» 
D. 16; A. 20; pectoral 2 short rays, sometimes minute third ray; ventral 
rays 7. 
White median spot on snout. Length 50 ram. without caudal. (Regan and Tre- 
wavas.) 
Atlantic. 
Photonectes ovibarba Regan and Trewavas 
Ph oton ectes ov i barba REGM and TREWAVAS, Danish Dana Exped. Oceanogr. Rep., Ro.S, 
March 10, 1930, p.121, fig,115-c(end of barbel). II. 24 ° 34 ' VI. 28 ° 4 ’; 
N. 23 ° 40 ' W. 43 ° 26; off Madeira N. 33 0 26 ’ W. 16 ° 59 ’; N. 32 0 
55 » W. 21 ° 51 *; N. 30 ° 17 * VI. 20 ° 44 ' ; N. 24 ° 5 ' W. 74 ° 36 *; N. 
O Q O 
27 2 f i. 53 39 ’ ; i « 28 ° 15 ’ # 56 ; 100 "to 4000 meters# 
^epth 6 to 9; head 6 to 7• Eye 5 to 6 in head; maxillary with 1 or 2 erect 
and 3 to 6 oblique teeth; 2 pairs of teeth on vomer and 1 or 2 on each palatine; 
barbel 1/2 of head, with short stoi;t black stem and large white bulb, broadly 
rounded at end, bearing small oviod terminal appendage* 
Postocular luminous organ long as or shorter than eye* literal photophores 
21 to 23 between gill opening and ventral, 12 to 14 between ventral and anal* 
Ventral series 7 or 8 ■f 2 between isthmus and pectoral, 21 or 23 between pectoral 
and ventral, 14 or 15 between ventral and anal, 11 or 12 between anal and caudal. 
