644 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



Gill membranes attached to isthmus; pseudobranchise present; "a 

 fringed oill-Hke organ behind the fourth branchial arch, one-half being 

 attached to this arch, the other half to the humeral arch." 



Scales small, ctenoid, entirel}' covering the head and bod}', scales in 

 lateral line, about 180. 



Dorsal small, very far back, its origin opposite posterior insertion of 

 ventrals; anal small, short, its origin a short distance behind anus, and a 

 little more than half the distance between insertion of ventral and base 

 of caudal; pectoral long, li in head; a long, pointed, fleshy, scaly flap 

 in axilla of pectorals, ventrals, dorsal and anal; caudal small, moder- 

 ately forked, the basal half scaled. 



Fig. 5. — GONORHYNCHUS ABBREVIATU 



Color uniform brown, paler beneath, flns pale basally, the distal 

 half black; pectoral edged with white. 



This description is taken from a fine specimen from oft' Yokohama, 

 obtained by Mr. Alan Owston. No other specimen has been seen since 

 the time of Schlegol. 



{abhreo'tatwi^ shortened. ) 



HUMMAllY. 



Family Elopid.f,. 

 1. Megalops Lacepede, 1803. 



1. cyprinoides (Broussonet), 1782; Okinawa. 



2. Elo2)s Linn;eus, 1766. 



2. saurus Linnaeus, 1766. 



Family Pterothrissid.b. 

 3. Pterothrissus Hilgendorf, 1877. 



3. gisfiu Hilgendorf, 1877; Hakodate, Suriiga Bay, Matsushima Bay, Tsugaru Straits. 



Family Albulid.e. 

 4. Albula Gronow, 1763. 



4. vulpes (Linneeus), 1758; Tokyo. 



Family Chanid.f.. 

 5. Chanos Lacepede, 1803. 



5. chanos (Forskal), 1775. 



