CATOSTOMUS TEEES. 



169 



types of C. sucklii are lost, but C. teres occurs in tire Upper Missouri 

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

 mus chloropteron Abbott is evidently the same. Catostomus texanus 

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

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

 dorsal carinatioii is frequently observed in stuffed fishes in which some 

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

 I have examined several of the types of Catostomus alticolus 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. Aloxostoma 

 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 Catostomus 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 probably the result of a very hasty examination. 



Specimens in United States Xational Museum. 



Number. 



Locality. 



Collector. 



1592 Carlisle, Pa S.F.Baird. 



6:239 Maryland Dr. Kennerly. 



Sunmierville, S. C. 



7067 Lake Chainplaiu S.F.Baird. 



7607 Marietta, Ohio Prof. Andrews. 



7677 

 7678 

 7706 

 7707 

 7717 



7777 



7781 ; 



8329 Port Huron, Mich. 



8409 



8440 



8451 L. 



64*9 Racine, Wis 



S501 



8573 I Toronto, Canada. 



