some new Species 0/ Drawida. 515 



On the prostomium are found numerous aggregations of 

 filiform cells in a state of uniform distribution, while at the 

 tip and the sides of the tip are found curious pyramidal cell- 

 associations, usually three in number (PI. XVII. fig. 8). 

 Their structure is identical with that of the spindle-shaped 

 cells. The apex of the pyramid points outward and the 

 sensory nerve-fibres enter the broad base. There is not any 

 vesicular investnieut for them, and therefore they must be 

 in the nature of primitive sensory organs, undoubtedly 

 tactile ill function. 



Locality. Somavarpatana, Coorg, 4000 ft. 



Typo in the British Museum. Syntypes in Hamburg 

 Zoological Museum, in the Indian Museum, Calcutta^ and 



Drawida scandens, sp. n. 



External Characters. — Length 30 mm. to 48 ram.; dia- 

 meter at the thickest anterior part 2 mm. and at the 

 narrowest posterior part 1*75 mm. ; number of segments 

 115 to 145. Prostomium prolobous. 



The setae are closely paired, none on first somite. 

 aa = bc; dd = ^ circumference of body. The setae on the 

 anterior fifty somites are 1-^- to If times bigger than those 

 on the hinder segments and are obliquely set. The longest 

 setae are '6 and '07 mm. at the nodule, and those from 

 the hinder parts of the body measure '32 and '04 mm. ut 

 nodule. The free ends of longer setae are spatulate and 

 those of the shorter set pointed, an adaptation obviously 

 connected with the scansorial habits of the worm. The base 

 of the longer seta-groups is surrounded by a circidar or 

 slightly oval, discoidal, cutaneous, slightly raised marking. 



Dorsal pores are present, fairly large, commencing from 

 somites 16 or 17. Nephridial apertures huge on seta-line rf. 

 The clitellum is well-marked, somites 9, .10, 11, 12, and 13 

 being affected ; frequently somite 14 is also involved. 



The genital markings are not elaborate and consist of an 

 elevated circular area around the male orifices. The two 

 areas may become confluent, producing a raised trausverse 

 pad. Similar markings may be found around the female 

 pores. All these areas are bisected by intersegmental 

 grooves. Atrial papillae occur, and frequently show through 

 the first pair of male apertures. 



Spermathecal pores are simple, large in the intersegmental 

 furrow 7/8 on seta-line a. 



Two pairs of male apertures on scta-linc ah in 9/10 



33* 



