igo Memoirs of the Indian Museum. [Vol,. I, 



I Head epilobous (about ^). 



Setae very small. Circles of setse equally close, unbroken ; number of setse • 

 70-v, 84-x, 74-xxv. 



Clitellum ring-shaped, occupying segments 14 — 16 (=3). Circlesof setae present 

 and regular on the ventral part of the i6th segment, on the 14th and 15th segments 

 totally absent or only represented by a few scattered setae. 



Male pores at the 20th (!) segment, on the top of large, conical papillae, distant 

 one from the other about ^ of the circumference of the body. There are about sixteen 

 setae between the papillae of the male pores, which lie in about the tenth line of 

 setae reckoned from the median ventral line (in the line of setae k) . This remarkable 

 and anomalous situation of the male pores, which are as a rule in this genus as well 

 as in the whole sub-family M egascolecince situated in the i8th segment, and here seem 

 to be pushed backwards for two segments, is found in all the eight specimens present. 

 In 'order to make certain of the connection of these papillae with the prostates, I 

 opened some of the specimens. This was the more necessary as there are copulatory 

 organs in the vicinity of these male papillae, and even in the usual position of the male 

 pores at the i8th segment, which closely resemble the male papillae. This examina- 

 tion of the internal anatomy assured me that I had not mistaken a pair of copulatory 

 papillae for the male pores. 



Copulatory organs: These are paired, moderately large, conical papillae, very 

 much resembling the male papillae but somewhat smaller, on some ^„^ 



segments behind the clitellum in the circles of setae, those of each pair — ^ — ^ 





23 



being a very little further apart than the male papillae. There are 

 about twenty setae between the papillae of one pair. As a rule there 

 are four pairs of such copulatory papillae on the 18th, 19th, 21st and 

 22nd segments, i.e., two before and two behind the male papillae. Only 

 three specimens showed this presumably normal arrangement ; in four ^ 

 other specimens it was found only on one side of the body, on the 

 other side the papilla of the 22nd segment being absent. In the eighth 

 specimen there was a supernumerary pair of papillae on the 17th seg- </ 

 ment and a single unpaired supernumerary papilla on one side of the 

 23rd segment. 



On opening the worm large semi-globular cushions may be seen de- _. 



pending from the body- wall into the ccelom and corresponding to these Pheretima 

 copulatory papillae. - anomala. 



Female pore unpaired, at the anterior part of the T4th segment in the median 

 ventral line. 



Spermathecal pores missing. 



Internal Anatomy. — Septa 4-5 — 8-9 moderately thick, 9-10 tender, lo-ii 

 — 13-14 very little strengthened, none missing. 



Alimentary tract: A very large gizzard in the 8th segment. CEsophagus 

 simple, without calciferous glands. Intestine with a pair of large, simple, slender, 

 conical caeca, extending forward from the point of origin. 



Circulatory system: I^ast heart in the 13th segment. 



