Harring (& Myers—Rotifer Fauna of Wisconsin — II. 519 
Eosphora melandocus Harking and Myers, Trans. Wisconsin Acad. Sci., 
vol. 20, 1922, p. 644, pi. 59, figs. 6-10. 
For description of this species see volume twenty, cited above; 
we have finally come to the conclusion that a new genus is neces¬ 
sary for this and related species. 
SESTICTJIjA GELIDA (Harring and Myers). 
Eosphora gelida Harring and Myers, Trans. Wisconsin Acad. Sci., vol. 20, 
1922, p. 642, pi. 60, figs. 1-6. 
For description of this species see volume twenty, cited above. 
It is closely related to R. melandocus, especially in the structure of 
the mastax. 
EESTICITEA ANCEPS Harring and Myers, new species. 
Plate XXXVIII, figures 5-8. 
The body is elongated, spindle-shaped and very slender; its 
greatest width is about one fifth of the total length. The integu¬ 
ment is very flexible and the outline is constantly changing in re¬ 
sponse to the contractions of the animal. The entire body is very 
transparent. 
The head and neck segments are of about equal length and width, 
approximately three fourths of the greatest width of the body. 
The transverse folds limiting the two anterior segments are well 
marked. The abdomen is very nearly parallel-sided for half its 
length; from there it tapers very gradually to the base of the foot, 
ending in an indistinct, broadly rounded tail. The foot continues 
the general outline of the body without any marked reduction; it 
has two joints, the proximal very large and tapering to the short 
terminal joint. The toes are short and conical; their external 
margins are slightly curved and the inner straight; their length 
is about one twentieth of the total length. 
The dorsal and lateral antennae are small setigerous papillae in 
the normal positions. 
The corona is slightly oblique and consists of a marginal wreath 
of cilia, closed on the ventral side immediately below the mouth; 
laterally there are two strong, auricle-like tufts especially adapted 
to swimming. The buccal field is covered with short, close-set cilia; 
the small apical plate is unciliated. 
The mastax is virgate, but of a modified type; although it still 
retains the pumping action seemingly unimpaired, the unci may 
