448 
Wisconsin Academy of Sciencesy ArtSy and Letters. 
are two large salivary glands in the ventral angles of the mastax, 
between the fulcrum and manubria. 
The oesophagus is very long and slender. There is a slight 
reduction in diameter marking the separation of the stomach and 
intestine, but no distinct constriction. The gastric glands are large, 
thin and disc-shaped. The ovary and bladder are normal. The 
foot glands are small and pyriform; they discharge into a mucus 
reservoir at the base of the toe, nearly half as large as the gland 
itself. 
The ganglion is moderately large and saccate. The retrocerebral 
sac is very long and pyriform; bacteroids are occasionally present, 
scattered through the posterior half of the sac. The subcerebral 
glands are saccate and almost as long as the sac; they always con¬ 
tain bacteroids, collected into very dense, globular masses, thus 
simulating an additional pair of eyespots. The true eyespot is at 
the posterior end of the ganglion, just below the dorsal antenna. 
Total length 250-300/x; toes 15-18ja; trophi 36/x. 
Notommata thopica was first found by Mr. L. M. Dorsey, of the 
Philadelphia Academy of Natural Sciences, in a pond in Fairmount 
Park, Philadelphia, Pennsylvania. It is common at Bargaintown, 
near Atlantic City, New Jersey. It is closely related to N. epaxia, 
N. codonella and other species of the central group of the genus, 
but readily distinguished by the two globular aggregations of 
bacteroids in the subcerebral glands, as well as by the salivary 
glands. It is possible that this may be Ehrenberg’s Triophthalmus 
dorsualisy but as he insists that the two additional eyespots are not 
to be confused with the black, granular masses of other Notom- 
matids and Otoglena, it seems best not to use his name for this 
species, especially as it is not known whether it occurs in Germany 
at all. If his drawing really looks like the animal he saw, it is 
probably an iJosp/iora-species. 
NOTOMMATA DONETA Harring and Myers, new species. 
Plate XXII, figures 1-4. 
The body is slender and spindle-shaped; its greatest width is 
about one fifth of the total length. The integument is very fiexible, 
but the outline is quite constant. It is a very transparent species. 
The head and neck segments are of nearly equal length, a little 
less than their width. The anterior transverse folds are well 
marked. The abdomen increases very gradually in width for about 
