178 Memoirs of the Indian Museum. [Voi,. I, 



abruptly set off from the ampulla, about half as long as the latter and about half as 

 thick as long. It is nearly cylindrical, only narrowed at the distal end, and bears at 

 the proximal end, nearly opposite to one another, two very small, knob-like, unstalked 

 diverticula. The diverticula are simple, containing a single simple seminal chamber, 

 not yet filled in the examined specimen. In all the examined spermathecae (three) 

 one of the two diverticula was distinctly flatter than the other. 



Hab, — Eastern Himalayas, Sandakphu in the Darjilingdistrict (British 

 Sikkim), 11,900' ; C. J. BBRGTHEII. and I. H. BURKIIyl, leg. 



GEN. I^AMPITO, KINB., emend. 



Emended Definition. — Besides the general characters of the sub-family MegascolecincB : At least 

 at the middle part of the body many (more than 8) s e t ae on each segment. Spermathecal pores two 

 or five pairs, the hindermost at the intersegmental furrow 8-9. One well-developed gizzard in the 5th 

 (or 6th?) segment. In the segments from about the 19th, one pair of meganephridia besides a num- 

 ber of micronephridia. Holoandric or metandric; testes and sperm-duct-funnels free. 

 Prostates with branched ducts in the more or less broad glandular part (of the Pheretima type). 

 Type species; Lampito mauritii, KINB. { = Perichceta armata, BEDD.). 



In the present collection I found two new species which resemble Lampito mauritii^ 

 KINB. {Perichœta armata, BEDD.), in various points of importance, especially in the 

 peculiar formation of the nephridial system, having in each segment behind 

 that of the male pores one pair of typical meganephridia besides a number of microne- 

 phridia. I therefore considered it justifiable to unite these three species in a separate 

 genus, the type of which must be the oldest'of them, viz., Lampito mauritii, KINB., from 

 which, in consequence, the genus should be called Lampito, as this name has not been 

 used for any other species. Of course in using this old name I have greatly to alter 

 the definition of KINBERG. 



The genus Lampito, as defined by me, is in certain respects intermediate between 

 the clearly meganephric genus Perionychella and the micronephric genus Megascolex. 

 It is not certain whether Lampito is really the connecting link between Perionychella 

 and Megascolex. Indeed we do not know even whether the latter is really derived 

 from Perionychella. It might be derived from the genus Notoscolex as well, Perionychella 

 — Perionyx being a side-branch. Nor is it necessary, even if we assume the first view 

 {Megascolex being derived from Perionychella), to consider Lampito as the real con- 

 necting link between the two. The passage from the meganephric to the micronephric 

 condition may. have taken another course in this case than that shown by the nephridial 

 arrangement in Lampito. The latter genus may be a side-branch. In any case 

 Lampito must be regarded as nearly allied to Perionychella. 



All the three species, though differing considerably in specific characters, agree in 

 the main character of the spermathecae. In all of them the spermathecœ are provided 

 with two club-shaped or tubular diverticula placed opposite each other beneath the 

 middle of the duct of the main pouch. As an eventual deviation from this con- 

 dition could hardly be assigned more than specific value, I do not put this common 

 character of the three known species into the definition of the genus Lampito. 



