386 
39292 TJ.S.N.M. N. 28 °38 * 30 " W. 87 ° 02 *. Albatr oss Station 
2394. Length 332 (?)mm. Type of Echiost oma margarita. 
Photonectes monodac tylus Regan and Trewavas 
Photonectes monodactylus REGAN and TREWAVAS, Danish Dana Sxped. Oceanogr. Rep., 
No.6, March 10, 1930, p.127, pi.12, fig.3, text fig. 122 (end of barbel). 
N. 24 0 5 ' W. 74 0 36 ’, 4000 meters; Caribbean Sea off St. Croix N. 17 ° 
58. 5 W. 64 ° 41 ’ and N. 17 ° 54 * W. 64 ° 54 ', 1000 meters; N. 25 ° 11 ' 
W. 20 ° 57 ’; N. 7 22 1 W. 46 51 ', 600 meters; Gulf of Mexico north 
west of Cuba N. 22 ° 6 * W. 84 ° 58 *, 600 meters. 
Depth 7; head 7* Eye 6 in head; maxillary with 16 erect and 4 or 5 oblique 
teeth; pair of teeth on vomer and series of 5 to 5 on each palatine; barbel 
l/2 length of head (to end of terminal filament); terminal end with 2 pairs of 
branches, longer and stronger than terminal filament, tapering, black, with 
slightly dilated implemented ends; at short space on anterior part of stem 6 
similar shorter branches, longer terminal and shorter basal impaired, shorter 
terminal and longer basal pairs* 
Postocular luminous organ 3/4 long as eye* Ventral photophores 10 between 
K 
isthmus and pectoral, 34 between pectoral and ventral, 18 between ventral and 
anal, 9 between anal and caudal. 
D. 18; A. 23; pectoral single long ray (incomplete); ventral rays 7. 
Length 250 mm. without caudal. (Regan and Trewavas.) 
•4 
Atlantic, Caribbean Sea* 
Photonectes flagellatus Parr 
Photonectes flagellatus PARR, Bull* Bingham Oceanogr* Collection, vol*3, art*2, 
