178 CONTRIBUTIONS TO NORTH AMERICAN ICnTIIYOLOGV — III. 



35. CATOSTOMUS IIETKOPINNIS Jordan, sp. iiov. 



1876—Cato8iomu8 i-ctrojnimis Jordan, ]5iill. llayden's Geol. Siirv. Tt'ir. (h)al.). 



This flue species combines the month of C. latipinnis with the form 

 and general characters of C. longirustris. Tlie type is No. ^l,!*^^, col- 

 lected by Dr. Elliott Cones in Milk River, Montana. It is a male sjieci- 

 men IG:^ inches in length. A specimen previously examined Irom Platte 

 Valley was identified as i)robably the female of C. latipinnis, but the 

 discovery of this large male specimen forbids such a supposition. 



Spedmens in Ihe United States National Museum. 



Number. 



Locality. 



Collector. 



20933 

 21197 



Platte Valley 



Milk River, Moutaua (type) 



Dr. Elliott Cones. 



3G. CATOSTOaiUS LATIPINNIS Baird tO Girard. 



Great-finned Sucker. 



1653 — Caiostomus latipinnis Baikd & Girahd, in Proc. Ac. Nat. Sc. Pbila. vi, 388. 

 Acomus Iati2nnni8 Giuakd, Proc. Ac. Nat. Sc. Phila. 173, 1356. 

 Jcomus latipinnis GiRARD, U. S. Mex. Bound. Surv. Icbtb. 39, pi. xxiv, £. 1-C, 



1859. 

 Catostomus latipinnis Gl'NTIIER, Cat. Fisbes Brit. Mns. vii, 14, 18G8. 

 Catostomus latipinnis Cope, Haydeu's Geol. Surv. Wyoming, 1870, 434, 1872. 

 Catostomus latipinnis Jordan & Copeland, Cbeck List, 1.50, ls7G. 

 ISoG^Catoslomus guzmanicnuis Girard, Proc. Ac. Nat. Sc. Phila. 173. 



Acomus guzmaniensis GiRARD, U. S. Mix. Bound. Surv. Itlitli. '.V.\ pi. xxiii, f. 6-10, 



1859. 

 Catostomus guzmaniensis GCntiikh, Cat. Fisbes Brit. Mns. vii, 15, 1868. 

 Catostomus guzmaniensc Cope &. Yaimiow, Wheeltr's Expl. W. 100th Mer. v, Zool. 



679, 1876. 

 Catostomus guzmanin>sis Jordan A. Copeland, Cbeck List, 156, 1876. 



Haiutat. — Arizona and SdiKirn. (Jrcen River, Wyoming {f'npr). IVuli.ibly not 

 abundant. 



This species is one of the most strongly marked of our Suckers. The 

 male lisli may be liiiown at (nice by the slender form and excessive 

 development of the lins, and probably in the females the fins are more 

 develoi)ed than in the males of any of the related .species. The squama- 



