ROTATORIA OF TILE UNITED STATES. 
95 
87. M. solidus Oosse. 
East Swamp, South Bass Island. 
Sphagnum Swamp near Pine Lake, Mich. (Jennings, ’96). Sandusky Bay, Lake Erie (Kelli- 
cott, ’96). Waters connected with the Illinois River at Havana, 111. (Hempel, ’98). 
88. M. triptera Ehrenberg. 
In Chara from East Harbor, Lake Erie. 
Shiawassee River at Corunna, Mich. (Kellicott, ’88). Lake St. Clair, and the following inland 
lakes of Michigan: McLaren Lake Oceana County; Crooked Lake, Newaygo County (Jennings, ’94). 
Swamp on shore of Pine Lake, Charlevoix, Mich. (Jennings, ’96). Waters connected with the Illinois 
River at Havana, 111. (Hempel, ’98). Pool near Norwich, Vermont (H. S. J.). 
89. M. ehrenbergii Perty. ( Notogonia ehrenbergii Perty.) 
In Myriophyllum from East Harbor, Lake Erie; in swamp near fish-hatchery on South Bass Island. 
Lake St. Clair and the following inland lakes of Michigan: McLaren Lake, Oceana County; 
Crooked Lake, Newaygo County; Chippewa Lake, Mecosta County (Jennings, ’94). Pool on shore of 
Pine Lake; West Twin Lake ; Old Channel at Charlevoix, Mich. (Jennings, ’96). Sandusky Bay, Lake 
Erie (Kellicott, ’97). 
90. M. salpina Ehrenberg. (M. oxysternum Gosse.) 
Swamp near fish-hatchery on South Bass Island. 
As Bilfinger (’94) has shown, Gosse’s M. oxysternum is the same as Elirenberg’s Lepadella? salpina, 
so that there seems no sufficient reason for using Gosse’s specific name any longer. 
Sandusky Bay, Lake Erie (Kellicott, ’96, as M. oxysternum). Waters connected with the Illinois 
River at Havana, 111. (Hempel, ’98, as M. oxysternum). 
M. oblonga Ehrenberg. — Near Cincinnati, Ohio (Turner, ’92, as M. elliptica n. sp.). Waters con- 
nected with the Illinois River at Havana, 111. (Hempel, ’98). Ditch at Hanover, N. H. (H. S. J.). 
M. dentata Turner. — Near Cincinnati, Ohio (Turner, ’92). 
M. bractea Ehrenberg. — Minnesota (Herrick, ’85; identification uncertain). Near Cincinnati, Ohio 
(Turner, ’92). Lake St. Clair, and McLaren Lake, Oceana County, Mich. (Jennings, ’94). Waters 
connected with the Illinois River at Havana, 111. (Hempel, ’98). 
M. collaris Stokes. — Trenton, N. J. (Stokes, ’96 b), 
M. collaris var. similis Stokes. — Trenton, N. J. (Stokes, ’96b). 
M. ( Lepadella ) cornuta Schmarda. — Brackish water near New Orleans (Schmarda, ’59). 
M. elliptica Turner = J/. oblonga Ehr. 
Cochleare turbo Gosse. — Lake St. Clair; also Crooked Lake, Newyago County, Mich., and Chippewa 
Lake, Mecosta County, Mich. (Jennings, ’94). 
Family 17. FTERODINADiE. 
PTERODINA Ehrenberg. 
91. P. patina Ehrenberg. 
Common in aquatic vegetation of Put-in Bay Harbor and East Harbor, Lake Erie; also from 
Portage River, Ohio. 
Herrick (’85) figures this species, but does not give the locality where found. Niagara River 
(Kellicott, ’87). Shiawassee River at Corunna, Mich. (Kellicott, ’88). Near Cincinnati (Turner, ’92). 
Lake St. Clair, and the following inland lakes of Michigan : McLaren Lake, Oceana County; Crooked 
Lake, Newaygo County; Chippewa Lake, Mecosta County (Jennings, ’94). Pool on the shore of 
Pine Lake and West Twin Lake near Charlevoix, Mich. (Jennings, ’96). Sandusky Bay, Lake Erie 
(Kellicott, ’96). Trenton, N. J. ? (Stokes, ’96a). Waters connected with the Illinois River at Havana, 
111. (Hempel, ’98). 
92. P. reflexa Gosse. 
In aquatic vegetation from East Harbor, Lake Erie. 
Lake St. Clair, and the following inland lakes of Michigan: McLaren Lake, Oceana County; 
Crooked Lake, Newaygo County; Chippewa Lake, Mecosta County (Jennings, ’94). Pine Lake and 
West Twin Lake near Charlevoix, Mich. (Jennings, ’96). Sandusky Bay, Lake Erie (Kellicott, ’96). 
P. bidentata Ternetz. — Lake St. Clair (Jennings, ’94). 
P. parva Ternetz. — West Twin Lake, near Charlevoix, Mich. (Jennings, ’96). 
P. valvata Hudson. — Waters connected with the Illinois River at Havana, 111. (Hempel, ’98). 
