Oshima: Fishes of the Family Mugilid^. 257 



Origin of spinous dorsal nearer to base of caudal than tip of snout, 

 anterior three spines inserted close together, the first and second sub- 

 equal in length ; soft dorsal inserted nearer base of caudal than origin 

 of anal ; origin of anal three scales in advance of that of the 

 soft dorsal, much nearer to base of caudal than origin of ventral ; 

 pectoral inserted above the middle of body, rather short, not reaching 

 the spinous dorsal ; origin of ventral below the last third of the pec- 

 toral, not reaching half way to vent; caudal fin forked at the apical 

 one-third. 



Head and body covered with large cycloid scales, outer edge of 

 each scale obtusely pointed; scales on the top of the head somewhat 

 larger and irregular, not reaching the tip of snout ; a sharply pointed 

 scaly flap along the base of spinous dorsal ; pectoral with no scaly 

 flap; ventral with a sharply pointed scaly flap, a broad scaly flap be- 

 tween ventral bases; soft dorsal, anal, basal part of pectoral, and 

 caudal covered with small scales. 



Color in alcohol dusky gray above, lower parts white, silvery; 

 ventrals whitish ; the rest of the fins dusky. 



Total length 257 mm. 



Described from a specimen from Bako, Pescadores Islands, col- 

 lected by Oshima on June 2, 1920, and now in the Carnegie Museum, 

 Cat. of Fishes, No. 8286. 257 mm. 



Habitat: Our specimens came from Sobun River near Tabani ; 

 Toko ; Takao ; Buraku River ; Ako ; and Pescadores Islands. One of 

 the commonest mullets in Formosa. 



Genus Chelon Rose. 



1793- Chelon Rose, Petri Artedi Angermannia Sueci Synonymia Nominum 

 Piscium, Editio II, p. 118. Type x^^<^^ Aristotle, Miigil chelo Cuvier and 

 Valenciennes. 



1863, Chcrnomugil Gill, Proc. Acad. Nat. Sci. Phila., XV, p. 169. Type Miigil 

 proboscideus Giinther. 



This genus, as here understood, agrees with Liaa in the absence of 

 the adipose eyelid, differing, however, in the greatly thickened .upper 

 lip, which, in typical species, at least, is fringed on the edge and 

 covered with flat, flexible teeth. Further comparative studies are 

 necessary before we can be sure that CJiccnomiigil is identical with 

 Chelon, and the Formosan species may be generically distinct from 

 both. 



