52 ATHERINID^: SILYERSIDES 



as a synonym of gracilis (^beryllina). Similarly we are unable to 

 distinguish clearly between paratypes of atrimentis from Lake Monroe, 

 Florida, and a specimen of beryllina from Noank, Connecticut. In 

 both lots the eye is scarcely longer than the snout, and the base of the 

 anal fin is a little shorter than the head. Specimens from Brown's 

 Creek, Long Island, supposedly typical of M. b. cerea, also have the anal 

 shorter than the head. 



Menidia beryllina beryllina typically diflFers from M. b. penin- 

 sula in the more slender, more nearly terete body ; in the shorter, 

 blunter snout ; in the somewhat longer anal fin, and in the waxy, rather 

 than greenish, color. The color of peninsul.e does not appear to be 

 constant, and in the form of the head and snout the extreme type cerea 

 of the New England coast grades into (or at least toward) peninsul.e 

 through typical beryllina of the fresh waters of the Middle Atlantic 

 States, and atrimentis of the fresh waters of Florida. 



Subgenus MENIDIA Bonaparte. 



8L Menidia sardina (Jenkins and Evermann), 1888. 



Atherina sardina Jenkins and Evermann, Proc. U. S. Nat. Mus., 11, 137, 1888 

 (1889). 

 Menidia sardina Evermann and Jenkins, ibid., 14, 136, 1891 ; Jordan and Ever- 

 mann, Bull. U. S. Nat. Mus., 47. pt. 1, 799, 1896. 

 Type-locality. — Guaymas, Sonora. 

 Range. — Gulf of California. 



This species seems to be the Pacific analogue of Menidia m. notata. 



82. Menidia clara Evermann and Jenkins, 1891. 



Menidia clara Evermann and Jenkins, Proc. U. S. Nat. Mus., 14, 136. 1891 ; 

 Jordan and Evermann, Btdl. U. S. Nat. Mus., 47, pt. 1, 801, 1896. 

 Type-locality. — Guaymas, Sonora. 

 Range. — Gulf of California. 



In the reduced size of the teeth and of the scales, this species seems 

 to approach Leuresthes. It should perhaps be made the type of a 

 distinct subgenus or genus. 



83. Menidia menidia (Linnaeus), 1766.'^*- 



Jordan and Evermann,^'' Kendall,'" Nichols,^^ Smith," and Hubbs " 

 have demonstrated that this species comprises two intergrading sub- 

 species, menidia and notata. The intergrades appear like hybrids, in 



19 Bull. U. S. Nat. Mus., 47, pt. 3, 2840, 1898. 

 ^^Rept. U. S. Fish Comm., 261-267, 1901 (1902). 

 ^^Amer. Nat., 42, 731, 1908. 



22 N. Car. Geol. Econ. Sur7\, 2, 176, 1907. 



23 5«i/. Mus. Nat. Hist., 38, 415, 1918 (footnote). 



