NOTROPIS 133 



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

 Mich., by 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 



Meek, 1888, Ann. Ac. Xat. Hist., \. Y., 305. 

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



Length 2i 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 ver\' small, subterminal, ver\" 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; peri- 

 toneum silver\'. Dorsal fin with 8 rays, inserted distinctly behind ven- 

 trals 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 A^ heterolepis Eig. & Eig., Amer. Nat., Feb., '93, p. 152. 



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