CATOSTOMUS TERES. 



169 



types of G. sucJclii are lost, but C. teres occurs in the Upper Missouri 

 region, and Girard's description Lints at no specific difference. Catosto- 

 tnus chloropteron Abbott is evidently the same. Catostomtis texanus 

 Abbott, described from a dried specimen, is less clear, but what there is 

 of specific characterization in the description points to G. teres. The 

 dorsal carination is frequently observed in stuffed fishes in which some 

 flesh is left in the back to shrink in drying, leaving the back " carinated". 

 I have examined several of the types of Catostomus alticolm Cope. 

 They are all small fishes, not one-fourth grown, and, as usual in young 

 fishes, the head appears proportionally large. I see, however, no rea- 

 son for considering them different from Catostomus teres. Moxostoma 

 trisignatum I have already referred to. The absence of the lateral line 

 is due to their youth, not to their belonging to a different genus. 

 The three large lateral spots, " not seen in any other of the order," are 

 found on young specimens of Gatostomus generally. I have examined 

 the types of ^'•Moxostoma trisignatum ", and have found specimens of 

 similar size, similarly colored and without lateral line, from Michigan and 

 from other Western States. I would undertake to match them from any 

 stream in the West. The reference of these specimens to Moxostoma 

 {Erimyzon) was ijrobably the result of a very hasty examination. 

 Specimens in United States Xatiunal Museum. 



