100 Memoirs of the Indian Museum. Norte 
10/11; the testis-sacs in xi extend over the whole length of the segment, from 10/11 
to 11/12, and do not communicate with each other either above or below the 
gut. 
The spermathecal ampulla is rather heart-shaped, the duct leading off from the 
broad end. The duct is fusiform, narrower at its two ends and swelling gently in 
its middle portion; it is4—2 as long as the ampulla. The narrow tubular diverti- 
culum, arising from near the termination of the duct, is nearly as long as duct and 
ampulla combined; it may be twisted; it is broader and rather mammillated towards 
its free, and narrower and smoother towards its attached end. 
There are no penial setae. 
| Subfamily OCTOCHAETINAE. 
Genus ERYTHRAEODRILUS, gen. nov. 
Erythraeodrilus kinneari, Sp. nov. 
(Plate vale fies om) 
Castle Rock, Bombay; 17-x 1013 (S. H. Prater). Three specimens. 
External characters.—The specimens were much softened; one had apparently 
autotomized itself, and another almost so. Length 120 mm., maximum diameter 
34 mm.; colour brown, with an iridescent appearance due to the cuticle,—rather darker 
in the anterior part of the body, and the ventral surface slightly lighter than the 
dorsal. Segments 90+22 — 7112. 
Prostomium apparently prolobous. 
The first dorsal pore is in groove 3/4; pores are absent on the clitellum. 
The setae are in rings; they are small, and there are no notable differences in 
size or in the intersetal intervals; they are present on the clitellum. The mid-dorsal 
and mid-ventral intervals are about the same in both anterior and posterior parts of 
the body ,—aa — 1}ab throughout, and zz —2-3yz. The numbers of setae were vi/46, 
ix/53 approx.; xiv/43, xix/4o. 
The clitellum covers $xiii—?xvi = 34; it is darker in colour than the rest of the 
animal. 
The male apertures are on segment xvii, behind the setal ring, and fairly near 
each other, in about the line of setae cd; this is equivalent to an interval of about 
+ circumference. In the specimens first examined, the pores, on small whitish papil- 
lae, were situated at the postero-lateral angles of a rectangular glandular area which 
took up the whole length of xvii; in the other two specimens the glandular area was 
not visible, though in one there was an elevation between the two papillae. 
The female aperture is single, mid-ventral, on xiv, in a small whitish oval area 
between the line of setae and the anterior border of the segment. 
The manner of opening of the spermathecae will be described later. 
Genital markings vary in the several specimens. In one there are on segment 
xviii a pair of small rounded papillae, situated posteriorly in the segment between 
