198 [September, 



head, therefore, is well developed; the eye is circular, its diameter being con- 

 tained four times in the length of the side of the head. The scales are larger 

 than in any of its hitherto known congeners. Light reddish above, pale sulphur 

 yellow beneath. 



Caught in the Rio Frio, a tributary to the Rio Nueces, Texas, by Dr. C. B. 

 Kennedy, under Lt. A. W. Whipple, U. S. A. 



8. Cyprinella notata. Also an elongated and fusiform species, but easily 

 distinguished from C. lejnda, by a shorter head, less furcated caudal, and, 

 especially, by smaller scales ; the latter differing also in their general outline and 

 radiating furrows. Reddish above; yellowish beneath, with a jet black patch 

 upon the base of the caudal fin. 



Collected in the Rio Seco, a tributary to the Rio Nueces, Texas, by Dr. C. B. 

 Kennerly, under Lt. A. W. Whipple, U. S. A. 



8. Cyprinella whipplii. Gracefully elongated and subfusiform. Dorsal 

 region slightly arched upon the insertion of the fin. Greatest depth forming a 

 little more than the fifth of the total length, whilst the head, which is subconi- 

 cal, constitutes a little less than the fifth of the same dimension. The eye is 

 quite large, larger than in any other species of the same genus, since its diameter 

 enters but a little over three times in the length of the side of head. Another 

 very characteristic feature is to be found in a very high dorsal fin, rounded upon 

 its upper margin. The origin of the ventral fins is situated opposite the anterior 

 margin of the dorsal. The scales are of moderate development, and the 

 lateral line is but slightly flexed downwards. Reddish brown above ; golden 

 yellow beneath ; a black patch upon the posterior margin of the dorsal. 



Caught in the Sugar Loaf creek, a tributary of Poteau river, itself empty- 

 ing its waters into the Arkansas river, near Fort Smith, Ark., by H. B. M611- 

 hausen, under Lt. A. W. Whipple, U. S. A. 



9. Cyprinella macrostoma. This species is very characteristic. The body 

 is deep upon its middle, tapering posteriorly. The head is subconical, with a 

 prominent snout and a very large mouth. The eye is well developed. The ven- 

 trals are inserted a little in advance of the anterior margin of the dorsal fin. Red ; 

 silvery upon the opercular apparatus and middle of the sides. 



Specimens were collected in Devil's River, Texas, by John H. Clark, 

 under Col. J. D. Graham, and at China, New Leon, by Lt. D. N. Couch, U. S. A. 



10. Cyprinella venusta. Gracefully compressed and fusiform in profile. The 

 snout protruding and subconical. The species is related to C. macrostoma, from 

 which it chiefly diifers by the relative size of its mouth and shape of the body. 

 The ventrals are likewise inserted a little in advance of the anterior margin of the 

 dorsal. Greyish red above, pale beneath ; sides silvery. A black patch upon 

 the base of the caudal fin. 



Numerous specimens were collected in the Rio Sabinal, Texas, by Dr. C. B. 

 Kennerly, under Major W. H. Emory. 



11. Cyprinella texana. Body very slender and fusiform ; head small and 

 subconical; mouth small; eje large. Ventrals inserted under the anterior 

 margin of the dorsal. Color reddish brown, sides silvery; lateral line accom- 

 panied by black dots terminating into a black spot upon the base of the caudal. 



From Rio Salado, Texas, and Turkey creek, Texas, collecteii by John H. Clark, 

 under Col. J. D. Graham. 



12. Cyprinella luxiloides At first, this species would remind us of cer- 

 tain species of Liixilus in its general appearance. The body being deep, 

 gradually tapering away forwards and backwards. The head is well developed, 

 and the mouth also. Ventrals inserted slightly in advance of the dorsal. Red- 

 dish brown above: silvery beneath. 



From San Pedro creek, Texas, collected by Dr. C. B. Kennerly, under Major 

 W. H. Emory. 



