506 
Wisconsin Academy of Sciences, Arts, and Letters. 
curvature of the dorsal edge; at the apex is a short, bristle-like 
nib forming a continuation of the ventral edge; the length of 
the toe is about one fourth of the total length. The foot glands 
are large and pyriform. 
The corona is strongly oblique and decidedly convex without 
projecting lips. 
The mastax is large and of the normal type; the fulcrum ends 
in a triangular expansion and the manubria are strongly crutched. 
The ganglion is very long and saccate; eyespot and retrocerebral 
organ are absent. 
Total length 200-215/^; toes 45-50)a. 
Cephalodella hyalina is not rare in ponds with soft, acid water; 
we have collected it among submerged sphagnum in Lake Kathan 
and Starvation Lake, Oneida County, Wisconsin, and in Fontinalis 
novae-angliae at Bargaintown, near Atlantic City, New Jersey. 
CEPHALODELLA PAPILLOSA Myers, new species. 
Plate XXXIV, figure 7. 
The body is relatively short, laterally compressed and strongly 
gibbous dorsally. The head is fairly large and obliquely truncate 
anteriorly. The neck is deeply constricted. The abdomen in¬ 
creases rapidly in depth for about two thirds of its length and is 
gently rounded posteriorly; the transverse width is only one half 
of the dorso-ventral depth of the body at its highest point. The 
lorica is fairly rigid and the plates well marked; the lateral clefts 
are fairly wide and nearly parallel-sided throughout their length. 
The foot is moderately short and broad at the base; the tail is 
very small. The toes are very long, slender and slightly decurved; 
from the base they taper evenly and gradually to acute points- 
their length is nearly half the length of the body. 
The lateral antennae are of unusual form; small tufts of sensory 
setae are seated on small, slender conical tubules. 
The corona is oblique and strongly convex without projecting 
lips. 
The mastax is rather large and of the normal type; the fulcrum 
is slightly expanded posteriorly; the manubria are rodlike and not 
crutched. 
