Harring & Myers—Rotifer Fauna of Wisconsin — II. 475 
WiEiiZEjSKi, Eozpr. Akad. Umiej., Wydz. Mat.-Przyr., Krakow, ser. 2, 
vol. 6, 1893, p. 230. 
Diaschim sterea Dixon-Nuttall and Feeeman, Journ. Eoyal Micr. Soc., 
1903, p. 8, pi. 1, fig. 3.— Voronkov, Trudy Hidrobiol. Stants. Glubokom 
Oz., vol. 2, 1907, p. 105.— ^Whitney, Journ. Exper. ZooL, vol. 20, 1916, 
p. 273, figs. 3, 4.— Weber and Montet, Cat. Invert. Suisse, pt. 11, 1918, 
p. 136, fig. 37. 
The body xS moderately stout and slightly gibbous dorsally. The 
head is large and strongly oblique anteriorly. The neck is well 
marked. The abdomen increases gradually and regularly in width 
for about three fourths of its length and diminishes rapidly from 
this point to the base of the foot; the lorica is relatively firm and 
the plates well marked; the lateral clefts are somewhat wider 
than usual and nearly parallel-sided. The foot is large and robust; 
the tail is very prominent and extends very slightly beyond the end 
of the foot. The toes are rather short, stout, minutely recurved 
posteriorly and taper gradually to very acute points; the dorsal and 
ventral edges are very slightly undulate; their length is less than 
one fourth of the total length. The foot glands are large and 
pyriform. 
The corona is strongly oblique and convex without projecting lips. 
The mastax is fairly large and of the normal type; the fulcrum 
is slightly expanded at the posterior end and the manubria strongly 
crutched. The gastric glands are rather small. 
The ganglion is very large and saccate; some specimens appear 
to possess a rudiment of the retrocerebral sac at the posterior end 
of the ganglion. The eyespot is frontal and consists of two hemi¬ 
spherical pigment masses within a single capsule. 
Total length 180-190/a ; toes 40-45/a. 
Cephalodella sterea is somewhat sporadically distributed; when 
found, it is usually very abundant. It is readily distiniguished 
by the large tail. 
CEPHALODELLA GLOBATA (Gosse). 
Plate XXXI, figure 3. 
Diaschisa glolata Gosse, Journ. Eojal Micr. Soc., 1887, p. 362, pi. 8, fig. 4. 
—Hudson and Gosse, Rotifera, Suppl., 1889, p. 37, pi. 31, fig. 30.— 
Dixon-Nuttal and Freeman, Journ. Royal Micr. Soc., 1903, p. 7, pi. 3, 
fig. 9. 
Furcularia sphaerica Gosse, Journ, Royal Micr. Soc., 1887, p. 864, pi. 14, 
fig. 7.— Hudson and Gosse, Rotifera, Suppl., 1889, p. 26, pi. 31, fig. 16. 
