YO CALIFORNIA ACADEMY OF SCIENCES. 
spermatozoa in the prostate storage chamber (figs. 120 to 123). The yolk sacs are 
frequently so large that they fill the larger part of the cwlomic cavity pressing 
the intestine close up against the wall of body. 
Nephridia. The most anterior nephrostome is found in iii in front of septum 
iii/iv. The most anterior nephropore is found in iy in front of the inner couple of 
sete. There are nephridia (pores) in iv, v, vi, vil and viii, while somites x, xl, xi 
have no nephridia. The neck of the nephrostome contains a large glandular swell- 
ing, to which is attached muscles connecting with the septum. This neck is perforated 
by several narrow ductules, which occasionally branch. The duct appears to con- 
sist of a single tube not covered by peritoneal glands. On account of the rather mac- 
erated condition of the specimens I could not investigate the nepridial structure any 
closer. 
Some of the specimens collected by my friend were from a new locality and 
somewhat larger in size. This locality is Three Spring Meadow, on the east 
side of the North Fork of Kings River, opposite the natural bridge, at an altitude of 
about 8,000 or 9,000 feet, and several thousand feet above the river bottom at that 
point. They were there found under some old logs lying across the meadow, and over 
which the water was flowing, the worms being attached to the surface of the decayed 
wood. These specimens were about 4 larger than those from the springs at Alpine 
Meadows on the South Fork of Kings River several thousand feet higher up, but I 
find no distinct characteristics, though the spermatheca appeared more twisted. 
Among the specimens were a few of Velmatodrilus Vejdovskyi, for which I am thus 
able to note a new locality. 
