198 MR. F. BR, BEDDARD ON EARTHWORMS [Jan. 14, 
Dr. Michaelsen has also called attention to the variability of 
the genital papille. 
Of my specimens four are normal (i. ¢. there are 3 pairs on Vii., 
viii., ix.); in two the papille are on vii., viii. on one side of the body, 
on Viii. only on the other ; in the seventh specimen these conditions 
are exactly reversed ; in the eighth, one side of the body is normal, 
on the other the papille lie on viil., ix., x. 
In six specimens from Maui’ the genital papille and prostates 
were as follows :— 
On vii., viii. 0. 
0. Small. 
Vill., 1x. 0) 
On viii. (left side only). Small (on one side only, left). 
0. 0 
Ook wndor 
Vii., Vill. Small (on one side only, left). 
It is interesting to contrast this list with the last, on the hypo- 
thesis, of course, that the islands upon which the two series were 
collected are different. 
There were also two individuals from Mauna Loa, Hawaii, upon 
which I do not comment, as there were only two. 
Pericheta perkinsi, n. sp. 
The length of this species (of which I have examined two 
examples) is 192 mm.; the diameter is 6 mm. The number of 
segments is 110. 
The colour is of a light brown, darker on the back. 
The prostomium is broad (2°5 mm.) but not long ;. it is cut off 
from the first segment by a transverse groove. 
The buccal cavity is eversible, as in many Perichete. 
The first dorsal pore that I could detect lies between segments 
Xii./xill. 
The clitellum occupies the whole of segments xiv.—xvi., and is 
without sete. 
The oviducal pore, distinctly a single pore, is situated in the 
middle of a white area upon the brown clitellum on segment xiv. 
The male pores are rather wide apart, and upon segment xviii. 
I counted eleven sete between them. Each pore itself is upon a 
whitish papilla, and to the outside is another smaller papilla which 
is not perforated; the two are surrounded by several concentric 
circular wrinkles of the integument. 
There are no genital papille except the one just referred to 
and upon which open glands. 
The sete of P. perkinsi are not so numerous as in many other 
species. The segments in the anterior part of the body have 
fewer setz than those which follow. There isa gradual increase up 
to the xviith segment, whence the number appears to remain fairly 
1 Mr. Perkins has queried the locality. 
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