new Species of Harthworms. 65 
easily, except in sections in the intersegmental furrows 
13/14, 15/16 on seta-line 6. Male and female apertures 
cannot be identified. 
Colour.—In the live specimens the whole body is a pale 
grey, or even slightly brownish in some, with the usual dark 
dorsal and ventral bands. There is no colour-change in the 
preserved material. 
Internal organisation—The first recognisable septum is 
4/5; septa 7/8-10/11 very thick, those of 11/12-14/15 
fairly thick. Those of 4/5-6/7 are thicker than 16/17. 
The pharyngeal muscles are very strongly developed in 
somites 6—7, though the ventral bands are few. The pharynx 
is a spherical, strongly muscular chamber occupying somites 
3-6. Pharyngeal wall in segment 7 thrown into pouches. 
A well-developed spherical gizzard in segment 8. An 
cesophageal pouch may be present in segment 9. The 
intestine begins in segment 13, and in 14 the intestinal 
wall is thick, white, and spherical, so as to simulate a 
secondary posterior gizzard. There is a typhlosole, but no 
pharyngeal glands. 
The dorsal vessel is a stout tube of uniform thickness 
throughout. There is a typhlosolar vessel which comes to 
the surface of the intestine at the level. of segment 14, and 
is continued forwards in the form of an independent vessel 
entering the pharynx anteriorly. The last heart is in 
segment 11. A lateral longitudinal vessel, about the thick- 
ness of the dorsal vessel, extends from the anterior end 
backwards in seta-line 6. It is suddenly deflected inwards 
at about the level of somite 13, or may be continued in the 
same seta-line as far behind as segments 46-60, becoming 
greatly attenuated in its course. There is only a sub- 
intestinal vessel. 
The nephridia begin in segments 14-15. 
Male organs.—The testes and funnel in segment 10 not 
identifiable, but made out in segment 11. There are four 
pairs of seminal vesicles, irregular in shape and independent 
of the loops of the heart. The anterior ones are attached 
to the anterior face of septa 10/11 and 11/12. ‘There are 
no prostates. Male aperture in the intersegmental furrow 
21/22 on seta-line b. 
A small ovary and an egg-sac are attached to the posterior 
surface of the septum 12/13 dorsal in position. No oviduct. 
Female orifice on segment 13 within aa. 
No spermatheca could be discovered in any of the three 
specimens dissected. In one, however, a small whitish 
pear-shaped organ occurred in seta-line ), segments 14, lo on 
Ann. & Mag. N. Hist. Ser. 9. Vol. ix. 5 
