Harring & Myers—Rotifer Fauna of Wisconsin — II. 435 
slender posterior section. The epipharynx consists of two long, 
slender, slightly curved rods imbedded in the anterior walls of the 
mastax at the sides of the mouth. The piston is small and attached 
to the ventral wall of the mastax. 
The oesophagus is moderately long and slender. The gastric 
glands are large, somewhat triangular and strongly compressed. 
There is no distinct separation between the stomach and intestine. 
The ovary and bladder are normal. The foot glands are rather 
small and pyriform; at the base of the toes there is a minute mucus 
reservoir. 
The ganglion is moderately large and saccate. The retrocerebral 
sac is small and ductless. The large eyespot is at the posterior end 
of the ganglion. 
Total length 140-180/x toes 15-20/x; trophi 24ju wide, 15/i, long. 
Proales similis was described by De Beauchamp from material 
collected in brackish tidepools at Saint-Jean-de-Luz, Basses- 
Pyrenees, France. We find it common in similar places near At¬ 
lantic City, New Jersey; it does not occur in freshwater ponds, as 
far as we know. 
PROALES MINIMA (Montet). 
Plate XX, figures 1-4. 
Pleurotrocha minima Montet, Eev. Suisse Zool., vol. 23, 1915, p. 323, pi. 
13, fig. 33. 
Proales minima Weber and Montet, Cat. Invert. Suisse, pt. 11, 1918, p. 103. 
The body is short, saccate and very stout; its greatest width is 
nearly equal to half the length of the body proper. The integu¬ 
ment is very delicate and flexible, but the outline remains vir¬ 
tually unchanged. The entire body is very hyaline. 
The head is short, broad, and truncate anteriorly; its length is 
about one half the greatest width of the body. It is separated 
from the abdomen by a well defined constriction immediately be¬ 
hind the mastax. The abdomen is ovate in outline and ends poste¬ 
riorly in a short' tail. The foot is two-jointed, long and slender; 
the basal joint is only half the length of the terminal joint and 
somewhat larger in diameter. The toes are long and very slender; 
they are nearly cylindric for one half their length, and from there 
taper gradually to long, needle-like points; their length is one fifth 
of the total length. 
