290 PROCEEDINGS OF THE ACADEMY OF [April, 



Notropis atherinoid.es Rafinesque. PL XX, fig. 47. 



Alburnellus jaculus Cope, Tr. Am. Philos. "Soc. Phila., (2) XIII, 1866, p 

 387. St. Josephs River, Mich. 



Head 31- to 4£; depth 4£ to 6; D. visually iii. 7. i. rarely iii, 6, i; 

 A. usually iii, 9, i, frequently iii, 10, i, seldom iii, 11, i; scales usually 

 36, frequently 37, often 34, sometimes 38 or 39, occasionally 32 or 33, 

 rarely 35 or 40 + usually 2, often 3; usually 6 scales above 1. 1.. 

 often 7; usually 4 scales below 1. 1., sometimes 3, seldom 5; usually 

 20 predorsal scales, frequently 19. often 16, sometimes 17, 18 or 21, 

 seldom 15, 22 or 23, rarely 24; snout 3£ to 3f in head; eye 2f to 3|: 

 maxillary 2\ to 3f ; interorbital 2^ to 3f ; teeth usually 2. 4-4. 2. 

 rarely 2, 4-4, 1; length If to 4 inches. Cotype of A. jaculus. Also 

 135 examples, from Lake Winnetonka, Minn.; Joliet, 111.; Blue 

 River and Wabash River, Ind.; Sinking Creek. Walker's Creek, and 

 head of James and Roanoke Rivers, Va. ; "Togus Lake near Denver. 

 Col." 



Notropis dilectus (Girard). PL XX, fig. 48. 



AUmrnus oligaspis Cope, Proc. Acad. Nat. Sci. Phila., 1S64, p. 282. Kansas. 



Head 3£ to 4; depth 3| to o\; D. iii, 7, i; A. usually iii, 9, I, seldom 

 iii, 8, i, rarely iii, 10, i; scales often 33, 37 to 39, sometimes 31, 32, 34, 35 

 or 40 + usually 2, seldom 3; usually 7 scales above 1. 1., seldom 6, 

 rarely 8; 4 scales below 1. 1. ; usually 17 or 19 predorsal scales, seldom 

 18 or 21 ; snout 3\ to 3| in head; eye 3 to 3J; maxillary 2i to 3£; 

 interorbital 2| to 3*; teeth 2, 4-4, 2; length 1H to 2| inches. Cotype.- 

 of A. oligaspis 2 (type No. 2,753, A. N. S. P.). Also 14 examples, 

 from Chester, la. and Greenfield, Mo. 



Notropis rubrifrons (Cope). PL XXI, figs. 49-50. 



AUmrnus rubrifrons Cope, Proc. Acad. Nat. Sci. Phila., 1865, p. 85. Kis- 



kiminitas River, Pa. 

 Alburnellus percobromus Cope, Rep. U. S. Geol. Sur. Wyom. Hayden, 1870, 



p. 440. St. Joseph, Mo. 



Head 3f to 3|; depth 3f to 5£; D. hi, 7, i; A. usually iii, 9, i, 

 often iii, 10, i, seldom iii, 8, i; scales usually 34, often 33 or 35, some- 

 times 30 or 32, rarely 31, 36, 37 or 39 + usually 2, often 3; usually 

 6 scales above 1. 1., sometimes 7; usually 4 scales below 1. 1., rarely 

 3; usually 18 predorsal scales, often 17, sometimes 15 or 19, seldom 

 16; snout 3^ to 3^ in head; eye 2| to 3^; maxillary 2\ to 2|; inter- 

 orbital 2f to 3i; teeth 2, 4-4, 2; length 1& to 2f inches. Cotypes 

 of A. rubrifrons 5 and A. percobromus 17 (type No. 2,993, A. N. S. P.). 

 Also 7 examples, from Carthage, Mo. ; Graham, Tex. ; Kanawha 

 River, Ya. 



