1910.] NATURAL SCIENCES OF PHILADELPHIA. 291 



Notropis photogenis (Cope). PI. XXI, figs. 51-52. 



Squalius photogenis Cope, Proc. Acad. Nat. Sci. Phila., 1864, p. 280. You- 



ghiogheny River, Pa. 

 Photogenis leucops Cope, I. c, 1867, p. 164. Sinking Creek and near Austin- 



ville, Va. 

 P. leucops engraulinus Cope, I. c. Kanawha River, Austin ville, Va. 



Head 3 J to 4J; depth 4f to 6 (6f ?) ; I), iii, 7, i; A. usually iii, 9, 

 i, sometimes iii, 8, i or iii, 10, i, rarely iii, 7, i or iii, 11, i; scales often 

 33, sometimes 35 or 37, seldom 36 or 38, rarely 30, 31, 34 or 40 + 

 usually 2, often 3; usually 6 scales above 1. 1., seldom 7, rarely 5; 

 4 scales below 1. 1. ; usually 17 predorsal scales, often 15, 16 or 18, 

 seldom 19, rarely 13 or 14; snout 3 to 3f in head; eye 2h to 3£; max- 

 illary 2\ to 3|; interorbital 2^ to 3f ; teeth 2, 4-4, 2; length 1H to 

 4 inches. Cotypes of P. leucops (type No. 2,581, A. N. S. P.) and 

 S. photogenis 2, and type of P. I. engraulinus, the latter in poor preser- 

 vation. 



Notropis photogenis amoenas (Abbott). PI. XXI, fig. 53. 



One from Stony Run, Cecil County, Md. 



Notropis micropteryx (Cope). PI. XXI, fig. 54. 



Alburnellus micropteryx Cope, Journ. Acad. Nat. Sci. Phila., (2) VI, 1869, 

 p. 233. Holston River, Va. 



Head 4 to A\; depth 5 to 5^; D. iii, 7, i; A. iii, 7, i usually, iii, 

 8, i rarely; usually 35 scales, sometimes 34, 36 or 37 + usually 3, 

 often 2; 5 scales above 1. 1.; 3 scales below 1. 1.; usually 17 pre- 

 dorsal scales, sometimes 15, 18 or 19; snout 3f to 3^ in head; eye 

 2f to 3£; maxillary 2\ to 2|; interorbital 2$- to 3£; teeth 2, 4-4, 2; 

 length 2^ to 2t% inches. Cotypes of A. micropteryx 2 (type No. 

 2,842| A. N. S. P.). Also 5 examples, from Eureka Springs, Ark. and 

 Coal Creek, Tenn. 



Notropis lirus (Jordan). PI. XXI, fig. 55. 



Nototropis lirus Jordan, Ann. Lye. N. Hist. N. Y., 1876, p. 342. Etowah 

 River, Rome, Ga. 



Cotype of N. lirus. 



Notropis umbratilis (Girard). 



Luxilus lucidus Girard, Proc. Acad. Nat. Sci. Phila., 1856, p. 203. Coal 

 Creek, trib. S, Fork Canadian River, Ark. 



Head 3f to 4; depth 3f to 4^; D. iii, 7, i; A. usually iii, 9, i, 

 seldom iii, 10, i; scales often 39, sometimes 35, seldom 33, 36 or 

 41 + usually 3, seldom 2; usually 9 scales above 1. 1., often 10, 

 rarely 11; usually 4 scales below 1. 1., seldom 5; often 23 to 25 

 predorsal scales, seldom 20, 22, 26 or 27; snout 33- to 3i in head; 

 eye 3 to 3+; maxillary 2* to 3; interorbital 2f to 3; teeth 2, 4-4, 2; 



