642 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



6. Noturus leptacanthus Jordan. 



Noturus lei)facantltiis "Jordan, MSS, 1876"; Jordan and Copeland, Check 

 List, IfiO, 1S7(3 (Alabama Eiver, no description); Jordan, Ann. Lye. Nat. 

 Hist. N. Y., vol. XI, 372, 1877 (Alabama River); Jordan, Ann. N. Y. Acad. 

 Sci., vol. I, No. 4, 1877, 119 (Etowab River); Jordan, Man. Vert., 33G, 

 1878 (Alabama and other Sonthern rivers); Jordan and Brayton, Bnll. 

 U. S. Nat. Mns., XII, 55 and 87, 1878 (Alabama and Cbattaboochee 

 Rivers); ?*Hay, Proc. U.S. Nat. Mns., 514 and 51.'), 1880 (Enterprise, 

 Miss.) ; Jordan and Gilbert, Syn. Fishes N. A., 98, 1883 (Ga. to Miss.) 



Habitat : — Alabama, Etowah and Chattahoochee Rivers; ? Enterprise, 

 Miss. 



The specimens obtained by Professor Hay may perhaps represent a 

 distinct siiecies. 



7. Noturus gyrinu3 (Mitchill) Rafinesque. 



Silurus gyrinus Mitchill, Am. Mon. Mag., March, 322, 1818; DeKay, Fishes 

 of N. Y., 186, 1842 (Walkill R. ; copied.) 



Noturus gyrinus Rafinesque, Jour, de Physique, 421, 1819; Ich. Oh., 68, 1820; 

 Gill, Proc. Bost. Soc. Nat. Hist., 45, 1862; Cope, Jour. Acad. Nat. Sci. 

 Phila., 237, 1869 ; Jordan and Copeland, Check List, 160, 1876 (E. Penn, 

 and S. E. N. Y. ; no description); Jordan, Ann. Ljc. Nat. Hist., vol. XI, 

 371, 1877 (Southern N. Y. to Penn); Jordan, Bull. Nat. Mus. No. 10, 

 102, 1877 (S. N. Y. to Penn.); Jordan, Bull. U. S. Geol. Sur., 414, 1878 

 (S. N. Y. and Penn.; no description); Jordan, Man, Vert., 337, 1878 (S. E. 

 N. Y. and E. Penn. and N. J.); Bean, Proc. U. S Nat. Mus., 112, 1880 

 (near Piermont, N. Y.); Hay, Proc. U. S. Nat. Mus., 514, 1880 (Macon, 

 Miss.); Jordan and Gilbert, Syn. Fishes N. A., 98, 1883 (N. Y., entire Miss. 

 Valley, and Upper Lake Region.) 



Schilheodes gyrinns Bleeker, Ich. Arch. Ind. Prod., vol. I, 258, 1858. 



Noturus flavus Jordan, Man. Vert., 303, 1876 (in part) ; Nelson, Bull. Ills. Mus, 

 Nat. Hist., 50, 1876 ; Jordan, Proc. Acad. Nat. Sci. Phila., 46, 1877, 



Noturus sialis Jordan, Bull. Nat. Mus. No. 10, 102, 1877 (Miss. Valley, Great 

 Lake Region, and Red River of the North); Jordan, Bull. U. S. Geol. 

 Sur., 414, 1878 (no description); Jordan, Man. Vert., 337, 1876; Jordan- 

 Rept. on Fishes of Ohio, 801, 1882 (Miss. Valley to Red River of North); 

 Jordan, Bull. Ills. Lab. Nat. Hist., No. 2, 68, 1878 (no description.) 



Hahitat. — Xew York and Pennsylvania and westward; Eed River of 

 the North ; Walkill, Hudson, Chemung Ohio, and White Rivers. Pearl 

 R. Miss. 



* "The head is small and narrow, -widening gradually from thonarrow snout to the 

 shoulders; the lateral outline of the head therefore straight ; its length 4i times in 

 the body. Upper jaw projecting, spines rather long and slender, instead of being short 

 as in the type, the pectoral spine being one-half the length of the head. The color is 

 quite dark." (Hay.) 



