NATURAL SCIENCES OF PHILADELPHIA. 85 



Rana clamitans Daud. 

 Rana silvatica Lee. 

 Rana halecina, Kalm. 

 Rana catesbyana Shaw. 



The seventy-eight species embraced in the above synopsis form but part of 

 the fine zoological collection made by the State Geological Survey, under Prof. 

 Alexander Winchell. 



Note on the Fishes brought from the Platte River, near Fort Riley, by Dr. Wm. 



A. Hammond. 



Bryttus longulns Gird., U. S. Pac. R. R. Rept., x. p. 16. 



Stizostedium americanumC. V., Dekay, Zool. New York. 



Poecilichthys m e s ae u s Cope, Pr. A. N. S. Phil., 1864, p. 232. 



Gasterosteus micropus Cope, supra. 



Trutta 1 e w i s i Gird., U. S. Pac. R. R. Rept., x. p. 318. 



Hyodon tergisus Les., Gird. 1. c, p. 332. 



Percopsis h a m m o n d i i Gill, Proc. A. N. S. Phila., 1864, p. 



Fundulus sciadicus Cope, supra. 



Carpiodes d am a lis Gird., loc. cit, p. 218. 



Catostomus chloropterum Abbott, Proc. A. N. S. Phila., 1861, 473. 



Campostomahippops Cope, Pr. A. N. S. Phila., 1864, p. 264. 



Hybognathus e van si Gird., loc. cit., x. p. 236. 



Pimephales promelas Raf., Ichth. ohiensis, p. 53. 



Alburnus* oligaspis Cope, Pr. A. N. S. Phila., 1864, 282. 



Gila af fin is Abb. 1. c, 1861, p. 474. 



Semotilus corporalis Mitch., Putn. Sera, hammondii Abb., 1. c. p. 474. 



Semotilus pallidus Gird., loc. cit., x. p. 251. 



Platygobio gulonellus Cope, 1. c, 1864, p. 277. 



Ceratichthys cyclotis Cope, Pr. A. N. S. 1864, p. 277. 



Rhinichthys m a x i 1 1 o s u s Cope, loc. cit., 278. 



Ictalurus cserulescens Raf. Pimrlodus hammondii Abbott, Pr. A. N. S. 

 Phila., 1861, 569, appears to be same as that named by Rafinesque palli- 

 dus marginatus. 



* A species of this genus occurs in some of the tributaries of the Allegheny, e. g., the Kiskimi- 

 nitas, which differs from those hitherto described. The head is elongate conic and compressed, 

 the outline of the vertex ani front nearly plane, scarcely descending at the end of the muzzle; 

 length one-fifth the total, (thus differing from dilectus Gir. one-sixth). Operculum a little 

 higher than long. Mouth elongate, very oblique, end of maxillary opposite anterior margin of 

 orbit ; border of pre-maxillary above opposite middle of pupil, (differing in this from r u b e 1 1 u 8 

 Ag.) Orbit nearer end of muzzle than to opercular border, its diameter not reaching former, and 

 contained four times in length of head. Shape regularly fusiform, greatest depth five and one 

 half times in length including caudal. Scales 39+2, fewer than in u m b r a t i 1 i s, more than 

 in oligaspis, and much as in a m a b i 1 i s, m e g a 1 o p s and s o c i u s. These species are not 

 go elongate, have differently proportioned heads ami different coloration. The lateral line has a 

 long slight deflection as far as the dorsal fin. The pectorals do not reach the ventrals, which 

 originate anterior to the dorsal, and do not extend to the anal. Base of anal more elongate than 

 in rubellus, equal depth of body at its fourth ray. D. 1.8. C,-f-19+. A. 2, 10. V. 8, P. 11, the 

 four upper rays enlarged in the spring, as in Rhinichthys, etc, From origin of caudal to that of 

 dorsal equal from latter to posterior border or middle of orbit. Length 2 in. 6 lin. 



Above yellowish olive, the scales with punctulate margins; a median dorsal line. A dark late- 

 ral band has a distinct outline on the third row of scales above the lateral line, but vanishes in 

 punctulations below ; it is broader and more distinct on the caudal peduncle. From its superior 

 border a silver reflection extends over the white abdomen. Sides of head silvery; chin, muzzle, 

 lips, front and vertex light vermiliion during the breeding season. The bases of the fins, except 

 the caudal, are similarly colored at this season. The pharyngeal teeth are but little hooked ; in 

 three specimens. 4. 2 1. 4, and in two. 4. 22. 4. 



I have called this species Alburnus rub rif rons. Its form is quite different fiom that of the 

 A. nitidusKirtlani; the latter resembles more the Hybognathus proc ne. 



1865.] 



