1916. | J. STEPHENSON : Indian Oligochaeta. 311 
Fam. MEGASCOLECIDAE. 
Gen. Pontodrilus. 
Pontodrilus bermudensis, Bedd. f. ephippiger (Rosa). 
From a rotten palm tree lying in the water, Pamban, Ramnad Dist., 
21-ii-103 (S. li. Kemp). Several specimens. 
Gen. Megascolides. 
Megascolides tenmalai, Mchlsn. var. karakulamensis, var. nov. 
(Plate xxxeaies+ 67) 
Karakulam, 17-x-1911. ‘lwo specimens, both incomplete posteriorly. 
External Characters.—Length 70 mm. +; breadth 1-1: mm. 
Colour a nondescript medium grey, clitellum brownish yellow. 
Segments 93 +. 
Prostomium absent (or invisible). 
Dorsal pores small, the first in groove 4/5 (?). 
Setae in front of clitellum have the following relations :—taking 
the interval ab as the standard, aa= 2ab (= 22ab near anterior 
end), be =2ab, cd==12ab. Behind the clitellum aa==2-22ab, 
bc = 2ab, cd=t2ab or less. The seta d is above the lateral line of 
the body, dd being about 4 of the circumference. 
The clitellum extends ventrally from xiv-2xvii= 31, dorsally 
xiv-xvi=3. A faint annulation is visible; ventral setae are not 
discoverable on these segments. 
The male pores, on segment xviii, are associated with a pair 
of irregularly ovoid elevations, longitudinally placed with the an- 
terior ends slightly converging. The posterior ends of these eleva- 
tions are narrower than the anterior; the male apertures are pos- 
sibly on the inner margin of the elevation, in a slight indentation 
where the narrower passes into the broader part; if so, they would 
be in line with seta a. The anterior slightly converging ends of 
the elevations are thus within a; in length the elevations take up 
about the length of the segment, but slightly transgress groove 
17/18 in front and fall short of 18/19 behind (fig. 6). 
The female pore or pores are contained within a circular 
whitish patch on xiv, just behind the groove 13/14. The extent of 
the patch is less than the interval aa. 
The spermathecal apertures, smail, in 7/8 and 8/9, are in line 
with b. 
Internal Anatomy.—Septum 4/5 is very thin, 5/6 thin, 6/7 
somewhat thickened, 7/8-10/11 moderately thickened, 11/12 on- 
wards somewhat thickened even as far as 18/19. 
The gizzard is in segment v, of moderate size, and rather soft. 
There are no calcareous glands. The intestine begins in xvii. 
The last heart is in xiii, 
Beginning from the hinder end of the pharynx, the micro- 
nephridia form large tufts in each segment, but there are none on 
