1916. | J. STEPHENSON : Indian Oligochaeta. 329 
inwards. Across each oval passes a transverse ridge, at a level be- 
tween a third and a quarter of the length of the oval from its pos- 
terior margin; the floor of the oval is thus formed of two declivi- 
ties, an anterior longer and gently sloping, and a posterior shorter 
and steeper. The male aperture is probably on the ridge. 
Megascolex cingulatus (Schmarda). 
(Plate xxxii; fist. 21)z 
Lady Blake's Drive, Kandy, Ceylon, 29-v-1910 (F. H. Gravely). A 
single specimen. 
In length the specimen was 53 mm., originally more, the hin- 
der end having been mutilated and showing signs of commencing 
regeneration ; the diameter was 3 mm. _ 
Calcareous glands were present in segments x—xiii. 
Seminal! vesicles were present in segments x, xi and xii; there 
were none in xiii, and those in xii were not grape-like. 
The spermathecae (fig. 21) are characteristic. The ampulla 
is soft, slightly lobed and somewhat pyramidal in shape. The 
duct consists of two portions, an ectal (nearer the external aper- 
ture) which is exceptionally stout, flattened, and slightly constric- 
ted below its middle; and an ental, a shining cylindrical tube, 
lying underneath the ampulla in the natural position of the parts ; 
it begins at the rounded apex of the ampulla, after emerging from 
underneath which it dilates to form the much stouter ectal portion 
already mentioned. There is a single diverticulum, implanted 
above the constriction in the ectal portion of the tube; this is 
elongated, pear-shaped or club-shaped, and extends from its attach- 
ment to the base of the ampulla, against which it rests ; the diver- 
ticulum, like the duct, is firm, shining and muscular. From it 
near its attachment originate two small stalked secondary diver- 
ticula, with one, three or four minute grape-like chambers each. 
Megascolex insignis, Mchlsn. 
(Plate xxxii, fig. 22). 
Karakulam, 17-x-1911!. Several specimens. 
The dorsal pores begin from furrow 5/6 or 6/7. 
The ventral break in the setal ring was found to be equal to 
3ab. The number of setae counted was:—ca. 34/vi, ca. 34/vill, 
38/xii, 34/xix, 29/xxil. 
The male apertures are contained in a pair of slightly sunken 
darker coloured conical depressions; surrounding the depressions 
on the outer sides are a pair of slightly raised whitish semicircular 
curved lines. 
The gizzard appeared to me to be in segment vi. 
Ovisacs were present in segment xiv. 
