760 Records of the Indian Museum. [Vol. XXII, 



Gen. Pheretima, Kinb. em. Mich. 

 Pheretima haw^ayana (Rosa). 



The Residency, Imphal, Manipur. 2'iii"ig2o. Four specimens. 

 iame place. No date. Two specimens. 



Pheretima heterochaeta (Mich.). 



The Residency, Imphal, Manipur. 2iiii520. Three specimens. 

 Small stream running from swamp below Kotagiri, Nilgiris ; ca. 5700 ft. 

 yivigiQ. N. Annandale and R. B. S. Sewell. A single specimen. 



Gen. Perionyx, E. Perrier. 

 Perionyx sp. 



Khandala, Bombay, under stones and masses of weed at bottom of wet 

 rocks near waterfall. ju!>-, 1919. R. B. .S. Sewell. Several specimens, 

 immature. 



Perionyx excavatus, E. Perrier. 



Langol Hills near Lamphal Pat (Lake), close to Bishcnpur, Manipur, 

 .Assam ; 2600 ft iiii"i92o. Two specimens. 



The Residency, Imphal, .^lanipur. a'iii'igjo. .Numerous specimens. 



Same place. No date. Numerous specimens. 



Paddy fields, Potsenybham. N. of Loktak, Majlipur. No date. M.inipur 

 Survey Party. Numerous specimens. 



Swamps round about Thanga Island in Loktak Lake. Manipur. 2fii' 

 1920. Very numerous specimens. 



Perionyx saltans, A. G. Bourne. 



Small rocky stream below Kotagiri, Nilgiris ; c«. 5700 ft. 4'ivigi9. .\. 

 Annandale and R. B. S. Sewell. Two specimens, immature. 



In 1886 Bourne (2) gave a description of a small Perionyx 

 from Ootacamund and Naduvatam in the Nilgiris, in which, as in 

 P. sansibaricus subsequently described by Michaelsen (4), the 

 nephridiopores alternated in position in successive se.i^ments. 

 Though the resemblance between the two is considerable, Michael- 

 sen refrained from uniting his specimens with Bourne's species, 

 since P. saltans has two spermathecal diverticula while P. sansi- 

 baricus has only one. 



Though the present specimens are immature, in one there are 

 signs of the male pores. This was accordingly opened, and three 

 of the spermathecae, still very small, examined microscopically ; 

 of these two showed two diverticula each, the third a single one, 

 which was however bilobed. It appears therefore that the speci- 

 mens belong to P. saltans ; the species had not previously been 

 found since Bourne's original discover3'. 



The specimens being immature scarcely allow of an extension 

 of Boutne's description. The more advanced of the two was 31 

 mm. long, and comprised 66 segments, but the hinder end was 

 regenerating ; it was 2 mm. in diameter. The other had a length 



