8 EISEN, PRELIM. REPORT ON GEN. AND SPEC. OF TUBIFICIDAZ. 
same, dorsal side of the body. The ventral vessel is not 
pulsating. The spines resemble those of the Lumbriculide, 
but are more numerous in each fascicele; they are also in 
adult specimens entire but in young specimens sometimes 
imperfectly forked. The longitudinal trunks of the ventral 
nerve-ganglion are every where connected by transversal 
anastomosing nerves. The receptacle opens in the 9:th and 
the efferent duct in the 10:th setigerous segment. 
Telmatodrilus n. gen. 
Oo 
Characteristics the same as those of the family. 
T. Vejdovskyi n,. sp. 
Fig. 1. 
The cephalic ganglion is emarginated in front, but po- 
steriorly furnished. with a large pointed processus. The 
atrium proper is semicircular, at its lower end forming a 
penis proper, consisting of an interior narrow tube, and an 
exterior large, pearshaped, cover, consisting of innumerable 
muscles, the proximal end of which is inserted in the folå 
of the integument, constituting the oviduct (fig. 1, p. d. & ovd). 
The segmental organs are covered with large, partly oblong, 
partly globular cells. The spines are 8 to 10 in each fascicle 
and 4 fasciecles in every segment The body is about 4 to 
9 c.m. long by 1,5 m.m. wide. It is of a grayish flesh colour, 
with translucent bloodvessels. 
Habitat: California, Fresno Co, Sierra Nevada, at an 
altitude of 7000 feet; generally found in swampy marshes in 
not too wet ground, sometimes also in decaying wood floating 
on or burried in the water. It is never found in the bottom 
of the swamp or any spring. 
Subfamily 2. ”TUBIFICINI D. 
The atrium is furnished with only one large prostata- 
gland. One pair of distinctly pulsating and enlarged hearts 
is generally to be found in the 7:th setigerous segment. 
The dorsal and ventral vessels situated on strictly opposite 
sides of the body. The two trunks of the ventral ganglion 
