64 CALIFORNIA ACADEMY OF SCIENCES. 
Pheenicodrilus taste n. sp. 
The size is that of a very large Oenerodrilus though even fully matured speci- 
mens varied greatly as to length. My largest specimens, which first had been slowly 
killed by dropping solution of corrosive sublimate in the water dish and then extended 
before being hardened with alcohol, reached 2? inches by 1} line in thickness at the 
clitellum. Average-sized specimens were considerably over 2inches long. This refers 
to the mountain specimens collected in the Sierra El Taste; the lowland specimens 
from Pescadero were much smaller not reaching the 2-inch mark. The body is 
slightly tapering towards the tail end. The somites are well set, those of the clitellum 
are hardly distinct. The prostomium is not long, but broad, dovetailing the peristo- 
mium about one-half. From here on the somites gradually, though slightly, increase 
in size until somite x which is a little the largest, xi, xii and xiii are smaller. The 
somites posterior to the clitellum are slightly larger than somite x, except the last few 
posterior ones. 
Clitellum comprises somites xiv to viii. Vertically it ends at a line drawn 
halfway between sete 2 and 3, slightly receding in somite xiv. Strictly speaking the 
clitellum does not enclose the male pore, as the pore is situated more ventrally than the 
thick clitellar layer, and between that and the pore there is no connecting ridge or 
papilla. 
An accessory copulatory swelling is seen around the outer couple of sete in 
somite xiv (fig. 26, c. ¢.), the body-wall here being raised like a small mound, with 
the set slightly outside of its center, from which the cells are arranged as radii in a 
circle. 
The male pore is surrounded only by a very small ridge or papilla, not high 
enough to be seen with a magnifying glass sufficiently strong to reveal the elevated 
papillee of the oviducts. But the whole zone around the male pore is often considerably 
elevated, turned inwards or towards the median line of the body and rounded 
forming a longitudinal groove. 
Exterior pores. The spermathecal pore is situated in the intersegmental groove 
between somites vili and ix, in front of and slightly outside of seta 2, the inner angle 
of the pore being in line with that seta, while the body of the papilla is situated more 
dorsally. The oyipore is situated close by, in front of, but not outside of seta 2. The 
male pore is situated in xvii exactly in a line with sete 1 and 2 according to the lon- 
gitudinal muscular fibres, but as the body-wall is slightly contracted in this somite the 
pore appears as if situated slightly more ventrally; the exact location is, however, the 
place left vacant by the absence of the ventral couple of sete. This couple (sete 1 
and 2) are never, at least not in adult specimens, found developed in this somite, 
though the tips of the young reserve sete are sometimes seen in their sac close to the 
pore. 
Nephropores open in line with seta 2, and are situated in the anterior one- 
third of the space between the sete and the anterior septum. The pores are large, 
round and easily distinguished. 
