500 Wisconsin Academy of Sciences, Arts, and Letters. 
The body is elongate, fairly slender, somewhat prismatic and 
slightly compressed laterally. The head is large and obliquely 
truncate anteriorly. The neck is well marked. The abdomen is 
very nearly parallel-sided and slightly convex dorsally; the lorica 
is firm and the plates well marked; the lateral clefts are narrow and 
parallel-sided. The foot is conical and rather short; the tail is 
small and rounded. The toes are fairly wide apart at the base, 
moderately short, stout, very slightly recurved and taper gradu¬ 
ally to acute points; their length is a little less than one fourth of 
the total length. The foot glands are moderately large and pyri¬ 
form. 
The corona is strongly oblique and convex without projecting 
lips. 
The mastax is large and of the normal type; the fulcrum is 
slightly expanded at the posterior end and the manubria are 
crutched. The gastric glands are large and pigmented red. 
The ganglion is long and saccate; at its posterior end is a small 
retrocerebral sac with a distinct duct, bifurcate anteriorly, but 
not reaching the surface of the corona. There is no eyespot. 
Total length 175-184/x; toes 36-40jLi. 
Cephalodella forficata is common everywhere in weedy ponds. 
We have used Ehrenberg’s name for this species, as it is undoubted¬ 
ly the same as Gosse’s Diaschiza caeca; the form of the toes, often 
crossed, size 150/x, and the very large ' ‘ eye, ’ ’ that is: gastric glands,, 
all agree with Gosse’s description. 
(7. forficata, tenuior, collactea and intuta show considerable simi¬ 
larity; the form of the body is approximately the same, all have 
pigmented gastric glands and crutched manubria. They are readily 
distinguished by the form of the toes; C. tenuior, collactea and 
intuta are also much smaller than normal specimens of C. forficata. 
CEPHALODELLA INTUTA Myers, new species. 
Plate XXXV, figures 2-5. 
The body is moderately elongate and slender, laterally com¬ 
pressed and slightly gibbous posteriorly. The head is relatively 
long on the dorsal side and short on the ventral side on account of 
the strongly oblique corona. The neck is well marked. The abdo¬ 
men increases gradually in depth for about two thirds of its length 
and from there tapers rapidly towards the short, conical foot; the 
