ROTATORIA OF THE UNITED STATES. 
97 
NOTEUS Ehr. 
95. N. quadricornis Ehrenberg. 
East Swamp, South Bass Island. 
Near Minneapolis, Minn. (J. W., ’83). Shiawassee River at Corunna, Mich. (Kellicott, ’88). 
Lake St. Clair and Chippewa Lake, Mecosta County, Mich. (Jennings, ’94). Pool on the shore of Pine 
Lake near Charlevoix, Mich. (Jennings, ’96). Sandusky Bay, Lake Erie (Kellicott, ’96). Waters 
connected with the Illinois River at Havana, 111. (Hempel, ’98). Ditches, Hanover, N. II. (II. S. J.). 
Noteus conium Attwood — Brachionus militaris. 
Family 19. ANURiEADiE. 
ANUR7EA Gosse. 
96. A. cochlearis Gosse. 
Abundant in towings from Lake Erie in the region about South Bass Island. 
Lake Erie (Vorce, ’81; figured (fig. 181) but not named). Near Cincinnati, Ohio (Turner, ’92). 
Water from Lake Michigan at Chicago (Jelliffe, ’93). Lake St. Clair and the following inland lakes of 
Michigan : McLaren Lake, Oceana County; Crooked Lake, Newaygo County ; Chippewa Lake, Mecosta 
County (Jennings, ’94). Lake Michigan, Round Lake, Pine Lake, West Twin Lake, and Susan Lake, 
in north Michigan (Jennings, ’96). Sandusky Bay, Lake Erie (Kellicott, ’96). Waters connected with 
the Illinois River at Havana, 111. (Hempel, ’98). 
A. cochlearis var. tecta Gosse. — Near Cincinnati, Ohio (Turner, ’92). Sandusky Bay, Lake Erie 
(Kellicott, ’97). Waters connected with the Illinois River at Havana, 111. (Hempel, ’98). 
A. aculeata Ehr. — Lake St. Clair and in Whitmore Lake, Washtenaw County, Mich. (Jennings, '94). 
Lake Michigan, near Charlevoix, Mich. (Jennings, ’96). Waters connected with the Illinois River at 
Havana, 111. (Hempel, ’98). 
A. aculeata var. v alga Ehr. — Waters connected with the Illinois River at Havana, 111. (Hempel, ’98). 
A. serrulata Ehr. — This is figured by Herrick (’85) as “ Anurcea sp.,” and is said by him to be “very 
common in the West.” Lake St. Clair (Jennings, ’94). Waters connected with the Illinois River at 
Havana, 111. (Hempel, ’98). 
A. hypelasma Gosse. — Waters connected with the Illinois River at Havana, III. (Hempel, ’98). 
Pond at Hanover, N. H. (H. S. J.). 
A. stipitata Ehr. — New York (Ehrenberg, ’43). Lake Erie (Yorce, ’81, and Kellicott, ’96). Niagara 
River (Mills, ’82). 
NOTHOLCA Gosse. 
97. N. longispina Kellicott. 
In towings from Put-in Bay Harbor, Lake Erie; few. 
Niagara River (Kellicott, ’79, and Mills, ’82). Lake Erie (Vorce, ’81). Lake Meudota, Wisconsin 
(Forbes, ’90). Lake St. Clair and Chippewa Lake, Mecosta County, Mich. (Jennings, ’94). Lake 
Michigan, Round Lake, and Pine Lake, near Charlevoix, Mich. (Jennings, ’96). Sandusky Bay, Lake 
Erie (Kellicott, ’97). Waters connected with the Illinois River at Havana, 111. (Hempel, ’98). 
N. scapha Gosse.- — Lake Michigan and Round Lake, near Charlevoix, Mich. (Jennings, ’96). 
N. foliacea Ehrenberg. — Round Lake, Charlevoix, Mich. (Jennings, ’96). 
N. acuminata Ehr. — New York (Ehrenberg, ’43, identification doubtful). Waters connected with 
the Illinois River at Havana, 111. (Hempel, ’98). Huron River at Ann Arbor, Mich. (H. S. J.). 
N. tabis Gosse. — Huron River at Ann Arbor, Mich. (H. S. J.). 
N. striata Ehrenberg. — Lake Michigan, near Chicago (Forbes, ’83, p. 106). 
Family 20. PLCESOMADiE. 
Following the example of Weber (’98), I place together, at the end of the Loricata, the three 
families Plcesomadse, Gastropodidse, and Anapodidse, comprising loricate Rotifera that have been 
described for the most part since the publication of Hudson and Gosse’s Monograph. In a former list 
(’94) I placed Plwsoma and Gastropus in the Hydatinadse, while Anapus was given a place next to 
Ascomorpha; all three genera, thus among the Illoricata. I still believe such an arrangement expresses 
more nearly the relationship of the animals; that the separation of the Rotifera into two great groups, 
according as the cuticula is or is not stiffened to form a lorica, is an artificial classification, often 
widely separating species that are really closely related. But since I am, from motives of conven- 
ience, using in this list Hudson and Gosse’s classification, it will be more logical to place these three 
loricated groups among the Loricata; this will not separate closely related species any more widely 
than is done by this classification in many other parts of the system. 
E. C. B. 1899—7 
