igoS.] W. M1CHAKI.SKN : Oligochceta of the Indian Empire and Ceylon. 143 



Spermathecal pores at the intersegmental furrow 7-8 in the lines of setae 

 c, or rather just ventral from them, touching them with their lateral end. 



Internal Anatomy» — Septa 5-6—8-9 very strong, 9-10 very delicate, the 

 following ones delicate. 



Alimentary tract: (Ösophagus simple. Five rather big, nacreous gizzards 

 in segments 15 — 19 (?). (This statement may be erroneous for one segment; perhaps 

 the first gizzard must be assigned to the fourteenth segment.) The first two gizzards 

 are gradually somewhat, but not much, smaller than the following, but not at all 

 rudimentary. 



Circulatory system: I^ast hearts in the ninth segment. 



Nephridial system meganephric. 



Male organs: A pair of large testicular vesicles at septum 9-10, sharply incised 

 by the latter. The anterior parts of the testicular vesicles depending forwards into 

 the ninth segment are as broad as the posterior parts in the tenth segment, but much 

 shorter. The sperm-ducts are very thin, much and irregularly undulated and bent, 

 nearly coiled. Though they are very long, they occupy relatively only a small space. 

 The prostates have a regularly semi-globular glandular part and a moderately thick, 

 very short duct, which is almost totally hidden in the body-wall, the glandular part 

 apparently lying with a flat base on the interior surface of the body- wall. The outer semi- 

 globular surface of the glandular part is delicately mammillated, and white in colour. 



Female organs: One pair of rather large ovaries and oviduct funnels in the 

 nth segment. The nth segment is in the examined specimen very much inflated 

 and filled with voluminous masses of free eggs. A pair of moderately large egg- sacs 

 depend from septum 11-12 backwards into the 12th and 13th segments. They are 

 very much restricted by septum 12-13, the anterior parts in the 12th segment being 

 nearly globular. The hinder parts in the 13th segment are rather small (united by 

 concrescence ?). 



Spermathecae entirely in the 8th segment, with a pear-shaped ampulla and a 

 very delicate, very long, irregularly coiled duct, which opens through a very small 

 simple atrial chamber. The atrial chamber is nearly hidden in the body-wall. There 

 are no diverticulum-like atrial sacs. 



Hab. — South India, Coonoor in the Nilgiri Hills, 2,000 m.; M. MAIN- 

 DRON leg., x-oi (Mus. Paris). 



DrAWIDA WII.I.SI, MlCHI^SN. 



D. w., MICHAELSEN, in Mt. Mus. Hamburg, xxiv, p. 145. 



Present many specimens, some of which are fully mature, provided with a 

 cUteUum. 



External Characters. — Dimensions of the mature specimens : Length 55 and 

 60 mm., greatest thickness 2^ mm., number of segments about 155 — 160. 



Colour bluish grey or reddish grey, somewhat variable, even in specimens from 

 the same locality. 



