MYXOSTOMA MACROLEPIDOTUM. 121 



Catostomua duquesnii CUVIER & VALENCIENNES, Hist. Nat. des Poissons, xvii, 

 458, 1844. 



Catostomus duquesnii KIRTLAND, Boston Joarn. Nat. Hist, v, 268, 1845. 



Catostomus duquesnii STORER. Synopsis, 423, 1846. 



Ptychostomus duquesnii AGASSIZ, Am. Journ. Sc. Arts, 2d series, xix, 204, 1855. 



Catostomus duquesnii GUNTHER, Cat. Fishes Brit. Mus. vii, 18, 1868. 



Terttulus duquesnei COPE, Journ. Ac. Nat. Sc. Phila. 236, 1868. 



Ptychostomus duquesni COPE, Proc. Am. Philos. Soc. Phila. 476, 1870. 



Ptychostomus duquesnei JORDAN, Bull. Buffalo Soc. Nat. Hjst. 95, 1876. 



Moxostoma duquesnii JORDAN, Man. Vert. 295, 1876. 



Catostomus duquesnii UHLER & LUGGER, Fishes of Maryland, 139, 1876. 



Ttretulus duquesnii NELSON, Bull. No. 1, Ills. Mus. Nat. Hiet. 49, 1876. 



Teretulus duquesnii JORDAN & COPEIAND, Check List, 157, 1876. (Name only.) 



Moxostoma duquesnei JORDAN & GILBERT, in Klippart's Kept. 53, 1876. (Name 

 only.) 



Myxostoma duquesnii JORDAN, Ann. Lye. Nat. Hist. N. Y. xi, 349, 1877. 



Myxostoma duquesnii JORDAN, Bull. U. S. Nat. Mus. ix, 37, 1877. 



Hyxostoma macrolepidota var. duquesni JORDAN, Man. Vert. ed. 2d, p. 313, 1878. 

 1818 Catostomus erythrurus, RVFINESQUE, Am. Month. Mag. and Crit. Rev. 354. 



Catostomua trythrurus RAFINESQUE, Ich. Oh. 59, 1820. 



Catostomus erythrurus KIRTLAND, Rept. Zool. Ohio, 168, 1838. 



PtycROStomus erythrurus COPE, Proc. Am. Philos. Soc. Phila. 474, 1870. 



Ptychostomus erythrurus JORDAN, Fishes of Ind. 221, 1875. (Name only.) 



Ttretulus erythrurus JORDAN & COPELAND, Check List, 157, 1876. (Name only.) 

 1820 But Hits melanurus RAFINESQUE, Ich. Oh. 51. 



HABITAT. Ohio Valley. Upper Mississippi River and southward; most abundant 

 from Wisconsin to Georgia. 



Examination of a very large series of "Mullet" and "Red Horse 77 

 from various parts of the country has led me to tbe conclusion, at first 

 rather unexpected, that all the various forms included in the above 

 synonymy belong to one widely diffused and somewhat variable species. 



The "Mullet" of the lakes and of Eastern Pennsylvania appears gen- 

 erally to differ in the more elevated and compressed body, shorter, 

 deeper head, and brownish or brassy rather than silvery coloration. 

 This represents the general tendency of "var. macrolepidotum "; but 

 specimens of "duquesnei" can be found which will match the average 

 macrolepidoium in each of these respects. The form which I have iden- 

 tified with Professor Cope's lachrymale is to some extent intermediate, 

 but has the additional peculiarity of smaller scales. In this respect, 

 however, occasional individuals, both of duquesnei and of macrolepidotum^ 

 can be found which approach it. 



The form inhabiting the waters of the eastern and northern parts of the 

 United States is the variety macrolepidotum. It is sold commonly as a food- 



