1912.] NATURAL SCIENCES OF PHILADELPHIA. 9 



Anguilla tricolor McClelland. 



One from Padang and two from Batu Sangkar, Sumatra. One 

 of last now in Stanford University. 

 Anguilla australis Richardson. 



One from Victoria, Australia. 



SIMENOHELYIDJE. 



Simenchelys parasiticus Goode and Bean. 



One from N. Lat. 42° 37' W. Long. 66° 55' in 200 fathoms. 



SYNAPHOBRANCHID^l. 

 Synaphobranchus pinnatus (Gray). 



One from N. Lat. 44° W. Long. 58° 30' in 160 fathoms. 



LEPTOCEPHALIDiE. 

 Leptocephalus conger (Linnaeus). 



Atlantic City, Ocean City, Beesley's Point and Corson's Inlet, 

 Xew Jersey; Italy. Seventeen examples. 



Leptocephalus marginatus (Valenciennes). 



Two from Christmas Island (W. H. Jones) and two from Hawaii 

 (J, K. Townsend?), in Pacific Ocean. 



Leptocephalus myriaster (Brevoort). 



One from Hiroshima and eight from Tokyo, Japan. 



Leptocephalus nystromi Jordan and Snyder. 



Two from Nagasaki, Japan. 



MICROCONGER subgen. nov. 

 Type Leptocephalus caudalis sp. nov. 



Differs from the subgenus Leptocephalus in the well-developed 

 caudal fin. 



(Mj/cpds, small ; Koyypo? or l'»yyp n< >, the ancient name of Leptocephalus.) 



Loptocephalus caudalis sp. nov. Fig. 1. 



Head 7k; depth 21^; head width 3£ its length ; snout 4; eye 6^; 

 maxillary 2f ; mouth cleft 2|; interorbital 9; pectoral 3|; head 1| 

 to dorsal origin; head 2| to anal origin. 



Body long, rather well compressed, especially behind, and tail 

 tapering long and slender. 



Head long, greatest width about equals its greatest depth, profiles 

 nearly alike. Snout long, not especially cavernous, surface convex, 

 upper profile nearly straight, basal width about equals its length, 

 and tip slightly protruding beyond mandible end. Eye ellipsoid, 



