CATOSTOMUS LONGIROSTRIS. 



177 



gave to this species tbe name of aurora, in allusion to the red breeding 

 colors of the male. Western specimens were still later described by 

 Girard as two distinct species, (jriscus and lactariiis, apparently without 

 comparison with tiie Eastern forms. 



The examination of the large series of specimens noticed below, to- 

 gether with others from the Great Lakes and Upper Mississippi, has 

 convinced me that all belong to one species, variable to some degree, 

 but not more so than is Catostomus teres and less so than Erimyzon 

 succtta. Some of the Upper Missouri specimens referable to C. grisetts 

 Grd. haveonan average rather smaller scales (95 in the lateral line 

 instead of 100 to 110) ; but I am unable to distinguish a tangible variery. 

 The original types of C. lacfarhis Girard are not now to be found, but 

 the description indicates no difference from C. loiujirostris. 

 Sptdmens in TJnittd States National Musetim. 



Number. 



Locality. 



Collector. 



i054 



20H7 



2563 



6709 



7047 



7G40 



799:5 



813G 



8435 



8437 



8802 



8905 



9010 



9116 



9175 



9522 



11212 



11213 



12210 



20075 



20191 



20223 



20235 



202.57 



20282 

 20689 



Lake Superior 



Pugct's Sound 



Platte Eiver, Nebraska 

 Yougbiogheny Eiver ... 

 Lake Winnipeg 



Xulato, Youcon Eiver, Alaska. 



Essex County, New York 

 Quebec 



Great Slave Lake 



Pole Creek, Nebra.ska 



Saint Michael's, Alaska 



Au Sable Eiver, Michigan 



Au Sable River, Michigan 



An Sable River, Michigan 



Eaciue, Wis 



Northern Bounclory Survey, Dakota 



Racine, W^is 



Lake Superior , 



(Probably original types of grisevs; the okl number 

 and locality obliterated.) 



Platte River, Nebraska , 



Great Lakes 



J. W. Milner. 

 R. Kennicott. 

 Capt. Simpson. 

 Prof. Andrews. 

 R. Kennicott. 



W. H. Dall. 



S. F. Baird. 

 E. Kennicott. 

 Lieut. Wood. 



Dr. Baunister. 

 J. W. Milner. 

 J. W. Milner. 

 J. W. Milner. 



Dr. Elliott Coues. 

 S. F. Baird. 

 J. W. Milner. 

 Bowman. 



Bull. N. M. No. 12—12 



