146 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY III. 



1842 Labeo elegans DEKAY, New York Fauna, part iv, Fishes, 192. 



Catostomus elegans STOKER, Synopsis, 425, 1846. 

 1842 Labeo csopus DEKAY, New York Fauna, part iv, Fishes, 195. 



Catoslomus esopus STOKER, Synopsis, 425, 1846. 



1842 Ldbeo elongatus DEKAY, New York Fauna, part iv, Fishes, 394. 

 1855 Moxostoma anisurus AGASSIZ, Am. Journ. Sc. Arts, 2d series, xix, 202. (Not of 



Rafinesque.) 

 1855 Moxostoma tenue AGASSIZ, Ana. Journ. Sc. Arts, 2d series, xix, 203. 



Moxostoma tenue PUTNAM, Bull. Mus. Comp. Zool. 10, 1863. 



Moxostoma tenue GUNTHER, Cat. Fishes Brit. Mus. vii, 21, 1868. 



Erimyzm tennis JORDAN & COPELAND, Check List, 157, 1876. 

 1856 Moxostoma claviformis GIRARD, Proc. Ac. Nat. Sc. Phila. 171. 



Moxostoma claviformis GIRARD, U. S. Pac. R. R. Expl. x,219, pi. xlviii,f. 5-9, 1858. 



Erimyzon claviformis JORDAN & COPELAND, Check List, 157, 1876. 

 1856 Moxostoma kennerlyi GIRARD, Proc. Ac. Nat. Sc. Phila. 171. 



Moxostoma Jcennerlyi GIRARD, U. S. Mex. Bound. Surv. Ichth. 34, pi. xx, f . 7-9, 1859. 

 1656 Moxostoma campbelli GIRARD, Proc. Ac. Nat. Sc. Phila. 172. 



Moxostoma campbelli GIRARD, U. S. Mex. Bound. Surv. Ichth. 35, pi. xx, f. 4-6, 1859. 



Erimyzon campbelli JORDAN & COPELAND, Check List, 157, 1876. 

 HABITAT. All waters of the United States east of the Rocky Mountains. 



This protean species is, next to Catostomus teres, the most abundant 

 and the most widely diffused of our species of Suckers. It occurs in 

 every stream from Maine to Texas, and thrives in all sorts of waters, 

 from the Great Lakes to the smallest ponds and brooks. Its variations 

 in color and form are remarkable ; but after the elimination of those 

 which are known to be due to differences of sex, age, and surroundings, 

 I find nothing left on which a difference of species or even a varietal 

 difference may be based. I therefore unite all the nominal species of 

 this genus, with a single exception, under the oldest specific name ap- 

 plied to any of them, sucetta of Lacep&de. 



The name sucetta has been passed from author to author for a long time, 

 all the descriptions being based on the notes of Bosc and the account 

 given by Lacepede, no one seeming to have any clear idea of what the 

 original species was. The reasons for identifying sucetta with oblongus 

 have been already given. 



The name sucetta was spelled suceti by Valenciennes. I see no reason 

 for this change. The derivation of the word is from the French sucet, 

 a sucker; and sucetta is an agreeable latiuization of the barbarous word. 

 The identity of the nominal species oUongus, giblosus, tuberculatus, vitta- 

 tus, esopus, elongatus, and elegans was conclusively shown by Professor 

 Agassiz. The fasciolaris of Rafinesque, as I have shown, is probably 

 this species, which Eafinesque could hardly have overlooked. 



