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BULLETIN OF THE UNITED STATES FISH COMMISSION. 
nois (Garman, ’90, p. 182). Lake St. Clair and Chippewa Lake, Mecosta County, Mich. (Jennings, ’94). 
Sandusky Bay, Lake Erie (Kellicott, ’96). West Twin Lake, near Charlevoix, Mich. (Jennings, ’96). 
Van Cortlandt Lake, New York City (Helm, ’97). 
C. dossuarms Hudson. — Sandusky Bay, Lake Erie (Kellicott, ’97). Waters connected with the 
Illinois River at Havana, 111. (Hempel, ’98). 
C. leptopus Forbes=C. unicornis Rousselet. 
“Apoecia amelia.” — In the Journal of the New York Microscopical Society, vol. 13, 1897, on p. 15, 
among the “objects exhibited” occurs the following : “Rotifer, Apoecia amelia, living, from New Jersey, 
by Frederick Kato.” Further on occurs the following: “Mr. Walker said of Mr. Kato’s rotifer, that 
it is mentioned in Trans. Acad. Nat. Sci.of Phil., and is the same as Mr. A. D. Balen’s rotifer of 
“pond 61,” 2^ miles from Westfield, N. J.” I have not been able to discover any reference to a rotifer 
with this generic or specific name elsewhere, though I myself and others have searched carefully 
through the publications of the Philadelphia Academy for an account of the animal. Through the 
kindness of Dr. Emily G. LIunt, however, I am able to present the following facts: The rotifer was 
discovered by Dr. W. Gibbons Hunt, of Philadelphia, about twenty years ago, on the under side of 
partially decayed water-lily leaves, in a lake in New Jersey. “ It was a very large and unusually 
beautiful rotifer, existing in colonies, the individuals of which had the tails all attached to one com- 
mon point and radiated out on all sides in a sphere, the whole embedded in a clear jelly.” Dr. Hunt 
named the rotifer Apoecia aemilia, and is supposed to have published somewhere a description of the 
new genus and species thus founded ; this description, if it exists, it seems impossible now to trace. 
From the above description it is apparent that the animal belonged to the Rhizota. 
Order II. BDELLOIDA. 
Family 3. PHILODINADiE. 
PHILODINA Ehrenberg. 
10. P. roseola Ehrenberg. 
One of the commonest of the Rotifera; abundant among the plants of the bottom of Lake Erie 
in the region studied. This rotifer was one of the few species found in the small landlocked pools on 
the rocky surface of Starve Island, just south of South Bass Island. 
Pond near Bangor, Me. (J. C. S., ’83). Shiawassee River at Corunna, Mich. (Kellicott, ’88). 
Pools in the neighborhood of Cincinnati, Ohio (Turner, ’92). Lake St. Clair and the following inland 
lakes of Michigan: White Lake, Muskegon County; Crooked Lake, Newaygo County; Chippewa 
Lake, Mecosta County (Jennings, ’94). Sandusky Bay, Lake Erie (Kellicott, ’96). In old channel 
connecting Round Lake and Pine Lake, near Charlevoix, Mich. (Jennings, ’96). 
11. P. citrina Ehrenberg. 
Bottom of Put-in Bay Harbor and East Harbor, Lake Erie; also in the swamp near the fish- 
hatchery on South Bass Island. 
Lake St. Clair and the following inland lakes of Michigan: White Lake, Muskegon County; 
McLaren Lake, Oceana County, and Crooked Lake, Newaygo County (Jennings, ’94). Sandusky 
Bay, Lake Erie (Kellicott, ’96). Trenton, N. J.? (Stokes, ’96«). Round Lake and swamp on the shore 
of Pine Lake, near Charlevoix, Mich. (Jennings, ’96). Common in pools, Hanover, N. H. (H. S. J.). 
12. P. megalotrocha Ehrenberg. 
Common in bottom vegetation of Lake Erie in the region of South Bass Island. Also from East 
Harbor and the small pools on Starve Island. 
Pool in the neighborhood of Cincinnati, Ohio (Turner, ’92). Lake St. Clair (Jennings, ’94). 
Sandusky Bay, Lake Erie (Kellicott, ’96). Pine Lake, near Charlevoix, Mich. (Jennings, ’96). Waters 
connected with the Illinois River at Havana, 111. (Hempel, ’98). 
13. P. aculeata Ehrenberg. 
Swamp near United States fish-hatchery, South Bass Island. 
Shiawassee River at Corunna, Mich. (Kellicott, ’88). Lake St. Clair and McLaren Lake, Oceana 
County, Mich. (Jennings, ’94). Sandusky Bay, Lake Erie (Kellicott, ’96). Trenton, N. J. (Stokes, 
’96«). Tamarack swamp on shore of Pine Lake, near Charlevoix, Mich. (Jennings, ’96). Apparently 
the species described by Stokes (’81), as “ Philodina n. sp.?.” 
P. macrostijla Ehrenberg. — Lake St. Clair (Jennings, ’94). Bottom of Lake Michigan, and pool 
on the shore of Pine Lake at Charlevoix, Mich. (Jennings, ’96). I have lately found it in some Utri- 
cularia sent from Norfolk, Ya. Waters connected with the Illinois River at Havana, 111. (Hempel, ’98). 
