15 EISEN, PRELTIM. REPORT ON GEN. AND SPEC. OF TUBIFICIDAE. 
The principal characteristic of the species is the star-like 
concretions round the upper end of the penis-sheath. 
L. Steigerwaldi n. sp. 
'The anterior part of the cephalic ganglion is the widest, 
emitting several large ganglionic lobes towards the cephalic 
lobe of the body. The posterior margin is abruptly emar- 
ginated, and the posterior part itself is nearly globular in form. 
The lower end of the penis is globular, swelled and 
extends outside the penis-sheath, and being at least twice 
as wide as the lower opening of the same. The oviduct is 
muscular, widest at the middle, around the swelling of the 
penis proper, and from here gradually tapering towards the 
exterior orifice. The exterior oviduct is large and sack-like, 
and in the membrane of the same, numerous cell-nuclei are 
to be seen. The rteceptacle. is straight, broadest at mwstun. 
terior apex. 
The length of the body in large specimens about 80 
m.m., and the width of the same about 0,75 m.m. to I m.m. 
Habitat: California, Sierra Nevada, in the bottom of run- 
ning springs in meadows at an altitude of 7000 feet. 
The principal characteristic of this species is the en- 
largement of the lower end of the penis proper. 
L. monticola n. sp. 
The cephalic ganglion is nearly square, and the projec- 
tions towards the cephalie lobe only two. The penis is 
nearly ecylindrical with only a slight truncate enlargement of 
the external end: The penis-sheath is also :cylindrical, of 
the same length as the penis, but also somewhat enlarged 
at its upper or interior apex. The oviduet is double, the 
interior one being chitinous; or seemingly so, and closely 
resembling the penis-sheath, except its lower end being in 
some fullgrown specimens much spread and plate-like. The 
exterior oviduct is as usual sack-like. The receptacle is 
straight and sack-like, and generally found to contain sperma- 
tophores. 
The body of the worm is very slender, about 30. m.m. 
long by 0,5 m.m. wide. 
