WOODWORTH: TURBELLARIA. 243 
Microstoma lineare Orrsrep. 
Microstoma lineare OERSTED, Forsag til en ny Class. af Planariz, etc., p. 566, Kopen- 
hagen, 1848. SiLiLman, Zeitschr. f. wiss. Zool., Bd. XLI. p. 51, 1885. 
Woopworrg, Bull. Mich. Fish Commission, No. 8. 1896. 
Microstoma commune GirARD, Ann. Sci. Nat., Zool., Tom. XV. p. 218, 1893. 
“Old Channel, Round Lake, Charlevoix, July 13, 1894. Numerous. In 
chains of 2-4, solitary individuals rarer.” 
One broken stock of four individuals from “ Utricularia washings, West Twin 
Lakes, Charlevoix, Aug. 13, 1894.” 
*Microstoma variabile Lripy. 
Microstomum (Eustomum) variabile Lerpy, Proc. Acad. Nat. Sci. Philad., Vol. V., 
p. 850, 1852. Woopworrg, Bull. Mich. Fish Commission, No. 8. 1896. 
Microstoma philadelphicum Grarr, Monographie d. Turbell., p. 252, 1882. 
Anatocelis variabilis Dimnstne, Sitzungsb. Akad. Wiss. Wien, Bd. XLV. Abth. 1, 
p. 286, 1862. 
‘¢ Alog-culture from shore, Charlevoix, July 24, 1894. One specimen, chain 
oD b] v] 5) > 
of four individuals.” 
Microstoma caudatum Lerpy. 
Microstomum (Eustomum) caudatum Lrrpy, Proc. Acad. Nat. Sci. Philad., Vol. V. 
p. 350, 1852. Siztuiman, Zeitschr. f. wiss. Zool., Bd. XLI. p. 51, Taf. IV. 
Figs. 4-6, 1885. Woopworrn, Bull. Mich. Fish Commission, No. 8. 1896. 
Anatocelis caudata DiesineG, Sitzungsb. Akad. Wiss. Wien, Bd. XLY. Abth. 1, 
p. 236, 1862. 
Eustoma caudatum Grrarp, Ann. Sci. Nat., Zool., Tom. XV. p. 219, 1893. 
Two specimens from ‘‘ Utricularia washings, West Twin Lakes, Charlevoix, 
Aug. 13, 1894.” Anterior end not obtusely rounded, but terminating in a 
small, abrupt, rounded conical projection. Tail prominent, narrow, beginning 
ibruptly, distinctly elevated. No eyes. Each specimen is a stock consisting 
of two distinct individuals. The larger specimen showed slight additional 
constrictions, Indicative of a third generation. 
CampBripGp, Mass., February, 1896. 
