1908. j W. MiCHAEivSEN: Oligochœta of the Indian Empire and Ceylon. 167 



Prostates: Pher etima-^r ostoXes. Glandular part occupying segments 18 and 

 19, thick, compact, with rough and fissured surface, cleft by the septum 18-19. 

 Duct short, thick. 



There are no penial setae. 



Spermathecae: Ampulla sack-like, duct half as long and as thick, somewhat 

 projecting into the ampulla. A few (always two?) seminal chambers are enclosed in 

 the wall of the spermathecal duct, projecting externally as small, flat papillary knobs 

 which are remarkable for their metallic lustre. There are no free diverticula. 



Hab. — Eastern Himalayas, Kurseong in the Darjiling district, 5,000'; 

 Dr. N. ANNANDALE leg., 21— 29-V-06. 



Remarks.^— This unique specimen lay broken on the footpath. The collector 

 supposes that the animal in creeping about was mistaken for a snake, and therefore 

 broken to pieces. 



PERIONYCHEIvIvA variegata, Michlsn. 

 (Plate xiii, fig. 11.) 

 P. v., MICHAELSEN, in Mt. Mus. Hamburg, xxiv, p. 158. 



Examined ten specimens, among which were some mature ones. 



External Characters. --The shape of the body is very peculiar, and, together 

 with the colouring, gives this worm nearly the appearance of a terricole planarian or 

 a leech. The body is very short and depressed, much broader than high, narrowing 

 towards both ends, towards the hinder end somewhat more slender than towards the 

 fore end. 



Dimensions of the mature specimens: Length 21 — 24 mm., greatest breadth 

 2 — 2f mm., number of segments relatively small, i.e., 49 — 63. 



Colour: Prime colour yellowish grey. At the dorsal side speckled with irregular 

 dark violet-grey spots, large enough to be distinctly seen with the naked eye. A dark 

 longitudinal stripe, sometimes interrupted intersegmentally in the dorsal median line. 

 The darker colour of these spots is caused by a black pigment placed in the layer of the 

 transverse muscles of the body- wall, whilst the black pigment of the median dorsal 

 longitudinal stripe lies in the layer of the longitudinal muscles of the body- wall. 



Head epilobous (f ) ; hinder appendix of prostomium open behind, divided by a 

 median longitudinal furrow, which is continued backwards as far as the intersegmental 

 furrow 1-2. 



Setae moderately large. Circles of setae only slightly interrupted dorsally by a 

 relatively short median distance, being about i| times as large as the neighbouring 

 distances, ventrally indistinctly interrupted. Distances dorsally in general somewhat 

 larger than ventrally. Number of setae about 45 — 60 in the middle part of the 

 body. 



First dorsal pore at the intersegmental furrow 5-6. 



Clitellum at segments 13 — 17 (=5), only distinguishable in some specimens by 

 the smothered pigmentation of the dorsal side. 



