MYXOSTOMA CERVINUM. - 129 



Specimens in United States Xalional Museum. «k/ 



11. MYXOSTOMA ALBIDUM {Girard) Jordan. 



Small-scaled lied Horse. 



1856 — riycJtostomiis albidus Gikakd, Proc. Ac. Nat. Sci. Phila. 172. 



Ptychostojniis albidus GlRAUD, U. S. Mex. Bound. Surv. Icbtb. 30, pi. xix, f. 5-8, 



1859. 

 Terelulus albidus Jordan & Copeland, Cbeck List, 157, 1876. (Name ouly.) 

 Myxosioma albidum Jordan, Man. Vert. E. U. S. 315, 1878. 

 Habitat. — Eio San Juan, near Monterey, Nevr Leon, in Mexico. 



This species is known only from Girard's figure and description. No 

 account of the lips is given, but the mouth is said to be a " great deal 

 larger" than in M. congestum. The descrii)tion is trivial, but the figure, 

 if at all correct, represents a species quite unlike our other members of 

 the genus ; the chief character being the much smaller size of the scales, 

 which in the description are merely stated to be " smaller than in con- 

 gcstus^\ The species may possibly belong to some section of the genus 

 other than the one in which it is here placed. The original types, No. 

 170, U. S. Nat. Museum, from Rio San Juan, near Monterey, New Leon, 

 are no longer to be found. 



12. MYXOSTOMA CERVINUM (Coj^e) Jordan. 

 Jump-rocks. Jumping Mullet. 

 1868 — Terelulus cervinus Cope, Jonrn. Ac. Nat. Sci. Pbila. 236. 



rUjcliostomus cervinus Cope, Proc. Am. Pbilos. Soc. Pbila. 478, 1870. 

 Moxostoma cervinum Jordan, Man. Vert. 296, 187G. 



Teretulus cervinus Jordan & Copeland, Cbeck List, 157, 1876. (Name only.) 

 Myxostoma cervinum Jordan, Ann. Lye. Nat. Hist. N. Y. xi, 365, 1877. 

 Myxostoma cervinum Jordan, Man. Vert. E. U. S. ed. 2d, 315, 1878. 

 1868 — Catostomus duquesnii Glntiier, Cat. Fisbes Brit. Mus. vii, 483. (Not of Le 

 Sueur, nor ot p. 18.) 



Habitat. — Rivers of tbe Soutb Atlantic States, from tbe James to tbo Cliattaboocbee. 



This is a strongly mjirked and very abundant species, the smallest of 

 its genus, and one of the smallest of the Catostomidw. It occurs in the 

 *Two specimens, types of tbo species. 

 Bull. N. M. No. 12—9 



