122 PAPERS ON ZOOLOGY OF MICHIGAN. 



lected some fish for him in the region. The foUowing si^eciahsts named 

 material collected: 



E. N. Transeau, Charleston, Illinois, Algae and some seed plants, 



Philip Dowell, Port Richmond, New York, Club-mosses, 



C. K. Dodge, Port Huron, Michigan, Seed Plants, 



G. N. Calkins, New York, New York, Protozoans, 



N. A. Harvey, Ypsilanti, Michigan, Sponges, 



J. P. Moore, Philadelphia, Pa., Leeches, 



Bryant Walker, Detroit, Michigan, Mollusks. 



J. G. Needham, Ithaca, New York, Dragon-flies, 



J. R. De la Torre Bueno, White Plains, New York, Hemiptera, 



C. Betten, Lake Forest, Illinois, Caddice-flies, 



Chas. A. Hart, Urbana, Illinois, Water beetles, 



V. E. Shelford, Urbana, Illinois, Tiger beetles, 



0. A. Johannsen, Ithaca, New York, Aquatic Diptera, 



Chancey Juday, Madison, Wisconsin, Entomostracans, 



Miss Ada Weckel, Oak Park, Illinois, Amphipods, 



Miss Harriet Richardson, Washington, D. C, Isopods, 



A. E. Ortmann, Pittsburg, Pennsylvania, Craj^fish, 



A. G. Ruthven, Ann Arl3or, ^lichigan. Amphibians and Reptiles. 



FISH HABITATS. 



Fish are the most abundantly represented of all the vertebrates of the 

 Whitefish Point region, but they do not inhabit all of the bodies of 

 water or all parts of any one of them. Descriptions of the more im- 

 portant places where fish are found will be given for the purpose of 

 enabling one to understand better the conditions under which the 

 different species live in the region. Data on the relations of the fish 

 to the environmental factors in their habitats will be included, although 

 little information of this kind was revealed in the necessarily brief time 

 that could be spent in the field. The portions of 'the bodies of water 

 examined are called stations and are designated by numbers; those near 

 Vermilion are indicated on the sketch map (Fig. 3). They may be 

 classified as follows: 



Lake Swperior Shoal 

 Deeper Shoal 

 Marginal Shoal 

 Beach Ponds 



Lower Beach Ponds 

 Upper Beach Ponds 

 Open Pond 

 Marsh 

 Beaver Dam Pool 



