NOTROPIS 133 



Indiana. It has boon taken in Orchard Lake, Oakland county, 

 Mich., bv Mr. T. L. Hankinson during the present summer 

 (1906). 



A female taken June 12, was full of eggs, as were some of 

 the types, taken from the 8th to the 10th of May. 



NOTROPIS CAYUGA Meek 



(Pl., r. 128; Map XXXIII) 



Meek, 1888, Ann. Ac. Nat. Hist., N. Y., 305. 

 J. & E., I, 260; L,., 16. 



Length 2t-j inches; body moderately elongate, depth 4.5 to 5.2 in length; 

 caudal peduncle about equal to head, rather slender, its depth 2.3 to 2.8 

 in its length. Color olivaceous, the scales above dark edged, their outlines 

 sharply defined; a black lateral stripe along sides and through eye to end of 

 snout; a faint caudal spot; the base of each scale of lateral line marked out 

 by a conspicuous crescentic band* of black, these bands crossing the lateral 

 stripe and breaking it up into bars posteriorly, extending below it on anterior 

 portion of body; vertebral streak almost obsolete. Head bluntly conic, 

 proportionately longer than in the variety next described, 3.7 to 4,1 (average 

 of 10 specimens 3.84) in length, width of head 1.9 to 2.2; interorbital space 

 2.9 to 3.5 in head; eye large, equal to snout, 3.1 to 3.5 in head; nose 3.2 to 

 3.8 in head; mouth very small, subterminal, very slightly oblique, the upper 

 lip below level of lower margin of pupil; back of maxillary under first nostril; 

 its length less than eye, 4.2 to 4.9 in head (average of 10 specimens 4.47); 

 jaws subequal; isthmus less than pupil. Teeth 4-4, hooked, the grinding 

 surface narrow; intestine 1 to 1.2 times length of head and body; peritoneum 

 silvery. Dorsal fin with 8 rays, inserted distinctly behind ventrals and 

 farther from muzzle than from base of caudal; longest dorsal ray a little 

 less than head, in which it is contained 1.1 to 1.2; anal rays 7 or 8, usually 

 8; pectorals % to ventrals, 1.3 to 1.5 in head; ventrals to vent or front of anal. 

 Scales 5, 34 to 36, 3 or 4; 12 to 15 rows before dorsal; lateral pores wanting 

 on some scales. 



This species is distributed from Lake Champlain and the 

 St. Lawrence River to the Dakotas and Assiniboia, Nebraska, 

 Kansas, Arkansas, and the Neches and Comal rivers in Texas. 

 It is not abundant in Illinois, having been taken by us in only 

 30 collections, nearly all of them from the northern half of the 

 state. It is most abundant in creeks, although it occurs in the 

 northeast glacial lakes and has been taken once by us from the 

 Michigan drainage. 



Females apparently near spawning have been captured as 

 early as June 5 and as late as August 1. 



* Compare description of N. heterolepis Eig. & Eig., Amer. Nat. Feb. '93. p. 152. 



