Jordan and Evermann. Fishes of North America. 1377 



completely covered with small deciduous scales which extend forward to 

 just behind nostrils. Eye moderate. Gill rakers small, about 14 on lower 

 part of arch. Dorsal spines high and strong, the second nearly or quite 

 as long as head ; second anal spine very strong, | or more length of head; 

 third spine slightly longer than second and very slender ; caudal lobes long 

 and slender, a little longer than head; pectoral long, nearly as long as 

 head, reaching front of anal. Color silvery olivaceous; scales with faint 

 silvery streaks, but no dark ones ; fins mostly pale or yellowish, the ven- 

 trals somewhat dusky. Length 12 inches. West Indies, north to southern 

 Florida, south to Brazil ; rather common ; much resembling Gerres rhombeus, 

 with which it has been confounded, but that species has always 2 anal 

 spines and the premaxillary groove entirely naked, (okitiftot, slipperiness ; 

 6rojua, mouth, from the protractilajaws.) 



Gerres oUsthostoma, GOODK & BEAN, Proc. TJ. S. Nat. Mus. 1882, 423, Indian River, 

 Florida (Type, No. 25118. Coll. R. E. Earll) ; EVERMANN & MEEK, I c., 267; EVER- 

 MANN & BEAN, Fishes of Indian Iliver, in Senate Doc. 46, 54th Congress, 2d session, 

 23, 1897. 



Subgenus GERRES. 



1764. GERRKS BREVIMANUS, Giinther. 



HeadSi; depth 2^; eye Skinhead. D. IX, 10; A. Ill, 8. Scales 6-39-11. 

 Back much lower than in G. lineatus, and the pectoral fins very much 

 shorter, their length 1 in head; caudal 3 in body: frontal groove broad 

 and naked; preorbital very little serrate, almost entire ; preopercle weakly 

 serrate; second dorsal spine If in head; second anal spine If; teeth small 

 and short. Coloration of G. lineatus, the dark streaks fainter; no black 

 on base of pectoral, or on lower fins; spinous dorsal dusky above. (Giin- 

 ther.) Pacific coast of Mexico; only the original type from Chiapas 

 known, (brevis, short; manus, hand.) 



Gerres brevirnanus, GUNTHER, Proc. Zool. Soc. London 1864, 152, Chiapas ; EVERMANN & 

 MEEK, I c., 270. 



1765. GERRES LINEATUS (Humboldt). 



(MOJABRA CHINA.) 



Head 3; depth 2*. D. IX, 10; A. Ill, 8; scales 5-34-10; eye 3 in head; 

 snout 3|; pectoral & longer than head; ventrals 1; second dorsal spine 

 !; second anal spine 1|. Preorbital finely serrated; snout scarcely as 

 long as the eye; groove for the premaxillary processes very broad, scale- 

 less, extending backward to the vertical from the center of the eye; oper- 

 cle with 3 or 4 rows of large scales, few or no small scales along its anterior 

 edge; dorsal fin notched, the last spine being not much longer than the 

 eye; dorsal spines strong, the second as long as the head without snout, 

 third spine usually a little longer than the second of the dorsal fin; second 

 and third anal spines about equal in length, longer than the soft rays and 

 reaching to the end of last ray when depressed; the pectoral extending to 

 the vertical from the first anal spine; caudal deeply forked, with the lobes 

 equal in length to each other and to the pectoral. A blackish streak along 



