30. CATOSTOMID.E — CARPIODES. 110 



the preceding by the mnch smaller eye. This description is based ou 



si)eciinens from Wabash River. 



(Caiyiodcti cijprinus* Jordan, 1. c. 198: Carpiodes tumidus Baird & Girard, Pi-oc. Acad. 

 Nat. Sci. Pliila. 1854,28: Carjnodes damalis Girard, Proc. Acad. Nat. Sci. PliLla. 185G, 

 170: Carpiodes grmji Cope, Proc. Amer. Phil. Soc. Pbila. 1870,482.) 



118. C tCiosnpsoni Agassiz. — Lulce Carp. 



Body stout, short, the back much arched, the depth 2h iu length. 

 Ilead 4 to 4]; in length, the muzzle moderately pointed. Dorsal rays 

 considerably elevated, two-thirds as long as base of fin. Eye small, 5^ 

 iu head. Tip of lower jaw much in advance of nostrils, maxillary 

 reaching line of orbit. Anterior suborbital large, deep, roundish. Ori- 

 gin of dorsal about midway of body. Scales rather closely imbricated, 

 8-39 to 41-C ; D. 27 ; A. 7 ; V. 10. Great Lake region ; abundant. Per- 

 haps identical with the preceding. 



(Agassiz, Amer. Jourii. Sci. Arts, 1855, 191 ; Jordau, 1. c. 198.) 

 aaa. Head loug, about 3^ iu length. 



119. C. bisOBi Agassiz. 



Head long, contained about 3i times in length to base of caudal. 



Muzzle elongate-conic, so that the eye is nearly median, the middle of 



the length of the head falling in front of its posterior margin. Body not 



much arched, depth 3 iu length. Anterior rays of dorsal pretty high, 



not nuich shorter than the base of the fin, not thickened at base. Lips 



■well developed. Eye large, 4i in head. Scales 7-40-5 ; D. 27 ; A. 7 ; 



V. 10. Mississippi Valley. 



(Agassiz, Amer. Jonrn. Sci. Arts, 1854, 356 ; Cope, Proc. Amer. Phil. Soc. Phila. 

 1870, 483; Jordau, 1. c. 197.) 



** Dorsal fiu with the anterior rays very much elevated and attenuated, about cn[ual- 

 liug, or more usually exceeding, the length of the base of the fin. 



laO. C cypriEJMSt (Le Sueur) Agassiz. — Quillback; Spcar-fish; Sail-fisli; Slcimbaclc. 

 IMuzzlc conic, projecting, obtusely pointed, tip of the mandible reach- 

 ing to opposite nostrils ; maxillary reaching to opposite front of orbit. 

 Anterior suborbital as deep as long. . Head 3^4 in length. Eye large, 

 Sh~H- in length of head. Body much arched above, the depth 2;i-2i 

 in length. First ray of dorsal usually nearer muzzle than base of 



*The original C'afos<o?nMS cyprinus was described from tributaries of Chesapeake 

 Bay. It cannot bo the present species, as the dorsal is described and figured as 

 strongly falcate and the caudal deeply forked. We have seeu no specimens Irom tho 

 original locality. 



+ Possibly two or three species are here included: rc?(/er, with the anterior dorsal 

 rays longer than the fin ; c^;;r(n us, with them somewhat shorter; and cutisanscrinua, 

 with a blunter snout and the dorsal rays very loug. 



