FISHES OF COLORADO 89 



4S mm., brown diatomaceous slime, 60 per cent. Not full. 



so mm., " " " , 80 per cent; one small gastropod. 



60 mm., " " " , 100 per cent. 



47 mm., " " " , go per cent; two Dytiscid beetles. 



Small weedy stream near Republican River, Wray, October 25, 1912. 



70 ram., Entomostraca, 60 per cent; gastropods, 40 per cent. 



75 mm., " , 80 per cent. Not full. 



60 mm., " , 10 per cent; vegetable debris, 90 per cent. 



SO mm., " ,75 per cent; 4 small gastropods and a few diatoms. 



Boulder Creek, 6 miles from Boulder, July 52, 191 2. Rapid stream with gravel bottom and shore 

 vegetation. 



8s mm., Chironomid larvae, 100 per cent. 



75 mm., " " , 10 per cent; Entomostraca, 50 per cent. Not full. 



80 mm., " " , s percent; small gastropods, 15 percent; two small annelids. 



6s mm., Entomostraca, 10 per cent; diatoms, 20 per cent. Not full. 



80 mm., " , 5 per cent; " , s per cent; two Dytiscid beetles. 



This species ranges from South Dakota to Mexico in the western tributaries of 

 the Mississippi. It is a species of the shallow streams of the plains, coming up 

 to but not entering the true foothill streams. F. zehrinus is known locally as 

 "Dogfish" in eastern Colorado. 



Colorado specimens. — University Museum: Boulder Creek, Boulder, October, 1903 (65 

 specimens, 40-80 mm.), C. Juday and J. Henderson, No. 37; St. Vrain Creek, Longmont, October 

 17, 1903 (2 specimens, loo-iio mm.), C. Juday and D. W. Spangler, No. 38; South Platte River, 

 Sterling, June 10, 1910 (4 specimens, 70-90 mm.), H. G. Smith, No. 389; Boulder Creek 6 miles 

 east of Boulder, July 2s, 1912 (12 specimens, 55-80 mm.), M. M. Ellis, No. 390; South Platte 

 River near Denver, spring 1912 (2 specimens, 70-80 mm.), F. A. Reidel, No. 391; South Platte 

 River, Julesburg, July 19, 1912 (769 specimens, 21-100 mm.,) J. Henderson and M. M. Ellis, No. 

 392; Lodgepole Creek near Ovid, July 20, 1912 (72 specimens, 20-90 mm.), J. Henderson and M. 

 M. Ellis, No. 393; RepubUcan River, Wray, October 26, 1912 (153 specimens, 35-70 mm.), A. G. 

 Vestal and M. M. Ellis, No. 394; Colorado State Historical and Natural History Museum: Summitt 

 Lake near Denver, August 11, 1900 (75 mm.), W. C. Ferril; South Platte River below Denver, 

 May 26, 1901 (6 specimens, 40-85 mm.), C. F. Leach; Arkansas River, Holly, May 24, 1907 (11 

 specimens, 25-75 mm.), H. G. Smith; Colorado College Museum: East Bijou Creek, Elbert County, 

 E. R. Warren; Ft. Collins, E. R. Warren; Stale Teachers' College Museum: Greeley, A. E. Beardsley. 



Fundulus floripinnis (Cope) 

 Little Red Fin, Little Green Top-minnow (Fig. 47) 



Haplochilus floripinnis Cope, Wheeler's Survey, Vol. V, p. 695, 1875 (Cherry Creek, Arkansas 

 River* and South Platte River at Denver) . 



Fundulus floripinnis (Cope) — Juday, Univ. Colo. Studies, Vol. II, p. 113, 1903 (Boulder; 

 Longmont); Juday, Bull. U.S. Fish Com. for 1Q04, p. 227, 1905 (Boulder, Longmont). 



Zygonectes floripinnis (Cope) — Jordan, Bull. U.S. Fish Com., Vol. IX, p. 8, 1889 (Denver). 



Body short and heavy, rather compressed back of the pectorals, distinctly so 

 in the caudal region; depth 4.3 to 5 in the length to base of the caudal; head 

 depressed, quadrate in cross-section, top quite flat; length of the head 3.7 to 4 in 



' Cherry Creek is a tributary of the South Platte and not of the Arkansas River. 



