1870. '^"■'- [Cope. 



scales 6 35 4. The end of the pectoral is in line with the origin of 



the first dorsal ray. Radii, D. XXIV, A. VIII, V. IX. 



The head is very obtuse and has a very large eye, beyond whose ante- 

 rior rim the extremity of the nasals project but a little way. The spines 

 of the premaxillaries project upwards and forwards, but not so far .as the 

 line of the nasals, and fail by .3o inch of reaching the line of the inferior 

 rim of the orbits. The anterior edge of the mandible is in line with the 

 anterior rim of the orbit, and the end of the thin upper lip reaches the 

 line of the anterior rim of the pupil. 



The diameter of the eye enters the length of the head 3.6 times, and 

 the length of the head the total (exclus. caudal) 4.22 times. Operclo 

 radiate -ridged. Supraoceipital region much elevated, with lateral ridges. 

 Anterior suborbital trapezoid, deeper than long. The size of this species 

 is medium; average length, one foot. The color is uniform brownish 

 golden. 



From the "Wabash River in Indiana. 



Carpiodes cutisanserinus, Cope. 



Species nova. 



This species is near the last, but present various distinctive features. 

 These may be summed up as follows: 



The dorsal fin originates mid-way between end of muzzle and basis of 

 caudal fin — considerably nearer end of muzzle in C difformis. The eye 

 is smaller, 4.5 times in length of head. The spines of the premaxillaries 

 project considerably in advance of the line of the nasal bones, and reach 

 the line of the lower rim of the orbit. The upper lip is much in advance 

 of the orbit, and the end of the same barely reaches the line of the ante- 

 j'ior rim of the latter. Scales 7 — 37 — 5. Anterior suborbital bone vertical 

 ovate. 



The lips are minutely tuberculate. Operculum and suboperculum ru- 

 gose, former radiate. Long rays of dorsal and anal extending a little be- 

 yond the basis of the caudal fin. Head four times in length head and 

 body. Depth 2.6 in the same. Length, afoot; color silvery. In a male 

 in spring, the muzzle and front are covered with closely set small papil- 

 lose corneous excrescences. Radii D.XXVI, V. X, A. VIII. 



From the Kiskiminitas River, Western Pennsylvania. 



Garpiodes selene, Cope. 



Species nova. 



Anterior dorsal outline steeply elevated, also the supraoceipital region, 

 vortex convex above middle of orbit, concave above anterior rim of same, 

 as in the two preceding species. The present fish is intermediate in many 

 ways between the two last, and adds characters of its own. Thus the 

 anterior suborbital bone is longer than in either, longer than high, and 

 narrowed posterioi-ly. The orbit is large as in O. difformis, entering the 

 length of the head 3.6 times, while the muzzle is more elongate than in 

 either. The head is narrowed vertically ; the spines of the premaxillaries 

 extend beyond the nasal crests, but do not quite reach the plane of the 



