G6. ATIIERINID.E - ATI1ERINOPS. 409 



between base of caudal and snout. Caudal deeply forked, its lobes equal. 

 Head 4; depth 5. D. V-I, 8; A. I, 15 5 scales 38-9. L. 4 inches. 

 Florida. (Goode & Bean.} 



(Chirobtoma peninsulas Goode &. Beau, Proc. U.S. Nat. Mus. 1879, 148.) 



8OO. ATHEBINOPSIS Girard. 



Pescadillo del Key. 

 (Girard, Proc. Acad. Nat. Sci. Phila. 1854, 134 : type Atherinopsis calif or niensis Grd.) 



This genus differs from Menidia in the non-protractility of the upper 

 jaw. The spines of the premaxillaries are very short, much shorter 

 thau the eye, and they are covered by a skin which is continuous with 

 that of the forehead, being only capable of such motion as is permitted 

 by the extension of a fold of skin between the jaws and the frontal 

 region. Species reaching a considerable size and having importance as 

 food-fishes. (aOspi^r^ Atherina; <V' s> appearance.) 



< 26. A. caDnfoD*cal'ffa(!iis Girard. California Smelt. 



Translucent greenish, a burnished lateral stripe which is rather 

 plumbeous thau silvery, some yellow on the opercles. Body elongate, 

 little compressed. Maxillary narrow, not reaching to the eye, not slip- 

 ping under the preorbital. Jaws even; teeth small, pointed, in narrow 

 bands; inner series of upper jaw enlarged. Gill-rakers very long and 

 slender. Scales crenate, somewhat rough, but not laciniate. First dor- 

 sal large, inserted in front of anal nearer base than snout; second dor- 

 sal inserted in front of middleof anal, which has a scaly sheath. Pec- 

 torals nearly as long as head, not reaching to ventrals, the latter half 

 way to vent. Eye small, 5 in head. Head 4; depth 5. D. IX-I, 12; 

 A. I, 23; scales 77-13. L. 18 inches. Pacific coast of United States; 

 very abundant; a food-fish of considerable importance. 



(Giravd, Proc. Acad. Nat. Sci. Phila. 1854, 134; Girard, U. S. Pac, II. E. Surv. Fish. 

 x, 103: Atherinichthys califoruiensis Giintker, iii, 403.) 



201. ATHERINOPS Steindaclmer. 



(Steindachner, Iclitk. Beitriige, iii, 6!, 1875: type Aiherinopsis affi.nis Ayres.) 



Teeth bifid, arranged in a single row in each jaw. Otherwise as in 

 Atherinopsis. One species known. (aOzptvy, Atherina; w^, appearance.) 



A. affisais (Ayres) Steindachner. Little Smelt. 

 Clear hyaline green, a silvery lateral band, 1 scales wide, narrower 

 than eye, bordered above by a purplish line. Back and sides thickly 

 punctate. Iris and opercles with bright yellow. Maxillary not reaching 



