200 MR, F, EB, BEDDARD ON EARTHWORMS [Jan. 14, 
The spermiducal glands extend through three segments; they 
are coarsely lobate, and the muscular duct is curved like a horse- 
shoe; there is no terminal sac. 
The ovaries are in segment xiii., and in the same segment are 
a pair of rather large kidney-shaped egg-sacs. 
The spermathece are four pairs in segments vi-ix. The pouch, 
which is pear-shaped, is sharply marked off from the narrow duct. 
The diverticulum is rather longer than the latter, and ends in an 
oval dilatation. 
Locality. Halemanu, Kauai. 
Remarks.—This species does not possess any very marked dis- 
tinctive characters, excepting, perhaps, one which will be described 
immediately. On the other hand, I cannot identify it with 
certainty with any of the species already known that have four 
pairs of spermathece. 
I may take this opportunity of recording a peculiarity in the 
sperm-ducts of Pericheta perkinsi, which is new to the genus, and 
does not therefore help in the identification of this species ; indeed, 
so few species of Pericheta have been examined microscopically, 
that the absence of the peculiar relations of the sperm-duct to the 
spermiducal gland, which I am about to describe, in the species 
Fig. 1. 
Pericheta perkinsi. 
Spermiducal gland (pr.), vasa deferentia (v.d.), and muscular duct (JZ) of 
gland of Pericheta perkinsi (left-hand figure) and of a normal Pericheta 
(right-hand figure). 
already investigated, does not gofor much. The two sperm-ducts 
retain their separateness, and perforate the duct of the spermiducal 
gland at some little distance from its external opening, but at a 
point where it is already wrapped up in a moderately thick 
coating of muscular fibres, not so thick, however, as they will 
ultimately become, The two sperm-ducts, however, do not at 
