some new Species of Diawida. 533 



in D. somavarpatayia, the uepliridia of this species do not 

 differ, from those of D. yrandis, of which we have a most 

 elal)orate account hy Bourne. 



The Nervous System. — Botli the cord and the oesophageal 

 nerve-mass show tlie same disposition of tlie histological 

 elements discussed under D. somavarpatana, and perhaps the 

 only feature which distinguishes D. puradoxa is the absence 

 of the large spherical central cells occurring in the internodes 

 of the nerve-cord and also in oesophageal nerve-mass. This 

 primitive character of the nervous system, associated with the 

 presence of two pairs of testicular vesicles in two speciesoof 

 Draivida, is a morphological fact worth calling attention to. 



Locality. Madapur (Coorg, S. India), Hill forests, 3500 ft. 

 Type in the British Museum, syntypes with Prof, Dr. 

 Michaelsen, Hamburg, in the Indian Museum, Calcutta, 

 and the Central College, Bangalore. 



References to Literature. 

 Bhal, K. N. (1919.) " On the Nephridia of ludian Earthworms." 



Q. J. M. S. (n. s.) vol. Ixiv. part i. 

 Beddard, F. E. (1886.) "Notes ou some Earthworms from Ceylon 



and the Philippine Islands." Ann. & Mag. Nat. Hist. {6\ vol. xvii. 



p. 89. 

 . (1888.) " Preliminary Note on the Nephridia of rerichceta." 



Proc. Hoy. Soc. vol. xliii. p. 309. 



. (189o.) ' A iMouograph of the Order Oligochgeta.' Oxford. 



Benham, W. B. (1891.) "The Nephridium of Lunihricus and its 



Blood-supply; with Remarks on tlie Nephridia in other Chsetu- 



poda." Q. J. M. S. (n. s.) vol. xxxii. p. 293. 

 . (1893.; " On Monitijader i7idicus.'" Q. J. M. S. (n. s.) vol. xxiv. 



p. 361. 

 Bourne, A. G. (1886.) "Preliminary Notice of Earthworms from the 



Nilgiris and Shevaroys." P. Z. S. p. 662. 

 . (1891.) "On Megui^colex coeruleus Temp, from Ceylon; together 



with a Theory of the Course of the Blood in Earthworms." 



Q. J. M. S. (n. s.) vol. xxxii. p. 49. 

 . (1894.) " On Moniligaster yrandis, A. G. B., from the Nilgiris, 



S. India, together with Descriptions of other Species of the Genus 



Mo7ii/iffas(cT." Q. J. M. S. (a. s.) vol. xxxvi. p. JiO?. 

 . (1894.) "On certain Points in the Development and Anatomy 



of some Earthworms." Q. J. M. S. (u. s.) vol. xxxvi. p. 11. 

 Dahlgren, U., and Kepner, W. A. (1908.) ' Principles of Animal 



Histology.' New York. 

 Lankester, E. R. (1864.) " The Anatomy of the Earthworm." 



Q. J. M. S. (n. s.) vol. iv. p. 258. 

 Michaelsen, W. (1897.) " Die Terricoleufauua Ceylons." Jahrb. 



Inst. Hamburg, xiv. Beih. 2, p. lo7. 



. (1900.) ' Oligochseta (Das Tierreich).' 



. (1907.) " Neuo Oligochiilen von Vorder— Indien, Ceylon, Birma 



und den Andauian-Inseln " Jahrb. Anst. 'Hamburg, xxiv. 



Beih. 2, p. 189. 

 . (1910.) "Die Oligochateufauna der Vorderiudisch-ceylonischeu 



Region." Abh. Naturw, Ver. Hamburg, xix. Band. 5 Pleft. 



