1913.] NATURAL SCIENCES OF PHILADELPHIA. 53 



CatOStomus insignis Baird and Girard. 



Proc. Acad. Nat. Sci. Phila., 1854, p. 28. Rio San Pedro, Arizona. 

 No. 6,785, A. N. S. P., type. Rio San Pedro, Arizona. J. H. 

 Clark. From the Smithsonian Institution (No. 169). 



CatOStomus nigricans Le Sueur. 



Many examples from: North Branch of Altman Creek, Indiana 

 County, Pennsylvania; West Branch of Deer Creek, Harford County, 

 Maryland; Roanoke River, Holston River and Sinking Creek, 

 Virginia; Coal Creek, North Carolina; Cumberland River, Ten- 

 nessee; Miami River and Richmond, Indiana; Brook River and 

 Des Moines, Iowa; Marshfield, Missouri. Besides these many 

 others which I have recorded elsewhere. 

 Lipomyzon liorus (Jordan). 



Three from Utah Lake (E. D. Cope in 1882), Utah'. In the 

 original account of Chasmistes Jordan,'' Catostomus fecundus Cope 

 and Yarrow is designated as the type. This action appears to me 

 sufficient for an a priori claim to the definition. The latter was 

 afterwards pointed out to refer to the present genus, with Chasmistes 

 liorus Jordan as its type.^ Chasmistes liorus Jordan was also con- 

 fused originally by its describer^ with Catostomus fecundus Cope and 

 Yarrow. Though this latter species is correctly allowed in Catos- 

 tomus, possibly Chasynistes may stand as a distinct subgenus, being 

 distinguishable from the others by its pointed snout above. In 

 any case Chasmistes brevirostris Cope cannot be included with it, 

 wrongly so suggested by Jordan and Evermann,^*^ as it has been 

 designated^^ the type of Lipomyzon, the only name available for 

 the present large-mouthed forms. 

 Lipomyzon brevirostris (Cope). 



Chasmistes brevirostris Cope, Amer. Nat., XIII, 1879, p. 785. Klamath 

 Lake, Oregon. 



No. 20,959, A. N. S. P., cotype (type) of Chasmistes brevirostris 

 Cope. Klamath Lake, Oregon. E. D. Cope. 



No. 20,522, A. N. S. P., cotype, same data. 



The statement made by Cope that this species differs from Del- 

 tistes luxatus in having the snout " without the hump produced by the 

 protuberant premaxillary spines" is not true. Both of my examples 

 show something of a hump, though much more obtuse and smaller 



'Bull Geol. Surv. Hayden, IV, 1878, p. 417. 



'Jordan and Gilbert, Bull. U. S. Nat. Mus., No. 16, 1882, p. 131. 



9 Jordan, I.e., No. 12, 1878, p. 150. 



^°L.c., No. 47, I, 1896, p. 199. 



" Jordan and Gilbert, I.e., No. 16, 1882, p. 131. 



