56 ZOOLOGY. 



48. ALBURNOPS SHUMARDI, Grd. 

 Gen. Rep. 2G1. Plate LVII, Figs. 1—4. 



Spec. Chab.— Head constituting the fifth of the total length. Snout eubconical, lower jaw shorter than the upper. Posterior 

 extremity of the maxillary reaching a vertical line drawn across the anterior rim of the pupil. Anterior margin of dorsal fin 

 equidistant between the extremity of the snout and the insertion of the caudal. Insertion of ventrals situated slightly behind 

 the anterior margin of the dorsal ; their tips approximating the vent. Reddish brown ; flanks silvery. 



68. Arkansas river, near Fort Smitli. Dr. George G. Shuraard. 



40. ALBURNOPS ILLECEBROSUS, Grd. 

 Gen. Rep. 262. Plate LVII, Figs. 5—8. 



Spec. Cuak. Head contained five times and a half in the total length. Snout sub-conical; lower jaw shorter than the upper. 



Posterior extremity of maxillar bone extending to a vertical line drawn in front of the orbit. Anterior margiu of dorsal fin 

 equidistant between the extremity of the snout and the insertion of the caudal. Insertion of ventrals situated somewhat in 

 advance of the anterior edge of the dorsal ; their tips reaching the vent. Reddish brown, lighter beneath than above, with the 

 middle of the flanks silvery ; fins unicolor. 



66. Arkansas river, near Fort Smith. Dr. George G. Shumard. 



50. CYPRINELLA UMBROSA, Grd. 

 Gen. Rep. 266. Plate LVIII, Figs. 1—5. 



Spec. Char. Body rather short; back very much arched. Peduncle of tail robust. Head constituting more than the fifth 



of the total length. Eye well developed and circular ; its diameter entering four times in the length of the side of the head. 

 Posterior extremity of maxillary reaching a vertical line drawn in front of the orbit. Anterior margin of dorsal fin equidistant 

 between the tip of the snout and the insertion of the caudal. Origin of ventrals situated slightly in advance of the anterior 

 margin of the dorsal. Pectorals moderate. Greyish red above; greyish yellow beneath. Fins unicolor. 



133. Twenty miles west of Choctaw agency. H. B. MoUhausen. — 134. Coal creek, Arkansas, 

 H. B. MoUhausen. 



51. CYPRINELLA SUAVIS, Grd. 



Gen. Rep. 268. 



Spec. Char.— Body rather short, sub-fusiform in profile; back slightly arched. Head constituting the fifth of the entire 

 length. Diameter of eye entering nearly four times in the length of the side of the head. Gape of the mouth oblique. Posterior 

 extremity of maxillar bone extending to a vertical line drawn behind the nostrils. Anterior margin of dorsal fin nearer the 

 insertion of the caudal than the tip of tlio snout. Oiigin of ventrals situated somewhat in advance of the dorsal. Pectorals 

 slender and elongated Yellowish brown, lighter beneath than above ; middle of flanks metallic white. Fins unicolor. 



138. Near San Antonio, Texas. Dr. C. B. Kennerly. 



52. CYPRINELLA LEPIDA, Grd. 

 Gen. RiiP. 268. Plate LVIII, Figs. 21—25. 



Spec. Guar.— Body elongated, sub-fusiform. Peduncle of the tail robust. Head contained four times and a half in the total 

 length. Eye well developed ; its diameter entering four times in the length of the side of the head. Snout rather blunt ; gape 

 of mouth somewhat arched ; posterior extremity of the maxillary extending to a vertical lino drawn before the orbit. Anterior 

 margin of dorsal fin nearer the insertion of the caudal than the tip of the snout. Origin of ventrals placed slightly in advance 

 of the dorsal. Pectorals moderate. Reddish ash above ; pale sulphur yellow beneath. Fins unicolor. 



126. Rio Frio, Texas, Dr. C. B. Kennerly. 



