148 PAPERS ON ZOOLOGY OF MICHIGAN. 



XXVIIB). In but two other places were long-nosed dace taken, — 

 in Shelldrake River and on the Lake Superior shoal at Station 1, and 

 these were small (about 1.5 inches). It was quite common in the 

 river, and was found among thick plant growths in swift water. 



One of the large fish from Vermilion Creek was grayish olive-green 

 above and on the sides, under parts pinkish white, an indistinct dark, 

 lateral band, the fins and head with a pinkish tinge. 



18. Rhinichthys atronasus lunatus (Cope). Black-nosed Dace. — 

 This species is also much restricted in the region and not at all associated 

 with the long-nosed dace. It is abundant in the beach ponds formed 

 by Mason's Creek, but was found elsewhere only in Cranberry Creek, 

 where it appeared scarce. The eighty or more caught were from 1.5 

 and 3 inches in length. 



19. Umbra limi (Kirtland). IVIud Minnow\ — ]\Iud minnows are 

 common in the shallow water of the marshes about the marsh lakes, 

 and they are also found in some numbers in these lakes, but little in- 

 formation could be obtained concerning their abundance and dis- 

 tribution on account of the difficulty of getting them from the dense 

 vegetation and the deep mud of their habitats in which they are said 

 to retreat on being approached (Gill, 1904). Station 101 (Plate XXIII 

 B) is a typical habitat for this species in the Whitefish Point region. 

 A single specimen w^as found in the stomach of a pike taken in Wether- 

 hog Lake. The twenty-two specimens collected measured 1 to 3.3 

 inches in length. 



20. Esox lucius Linnaeus. Common Pike. — Fish of this species are 

 common in the marsh lakes and in Shelldrake Lake and River. None 

 were found elsew^iere in the region, but in all probability it occurs in 

 Lake Superior (Townsend 1902). 



Individuals reach a large size in the marsh lakes, at least in the west 

 group, just south and west of Vermilion, where some \er\ large ones 

 were seen. A specimen 30 inches long caught on a trolling hook in 

 this habitat weighed 65 pounds. In color it was black on the back, 

 sides gray, with scattered spots of greenish-yellow, lower parts yellow- 

 ish-white. A pike 19 inches long was taken in Shelldrake Lake by the 

 writer. 



These large pikes preferred the deeper water of the marsh lakes and 

 the cover of vegetation, such as gale growths. A numljer WTre usually 

 seen at Station 59, perhaps to prey on the suckers that schooled there. 

 Small ones (four to ten inches) were common in shallow bays of these 

 lakes and of Shelldrake River. 



The stomachs of the small pike caught were for the most part empty. 

 One had eaten a mud minnow and a leech; in another, from Shelldrake 

 River, a sculpin was found. 



