OligocJiceta of Travancore. 505 



first and last lines of setae, rarely more ventrallj, and they 

 are, nearly always, quite in the lines of the setae. 



Internal anatomy. — The septa 6-7 to 11-12 are slightly 

 thickened. 



A moderately developed oblong gizzard occupies the entire 

 length of the viii. segment and a little part of tiie vii. The 

 intesline begins in the xiv. segment. There are three pairs 

 of liearts in segments ix., x., and xi. 



Two pairs of testes and sperm-duct-funnels lie free in 

 segments x. and xi. The sperm-sacs are paired and placed 

 in segments ix., x., xi., and xii. Tliose of the first three 

 pairs are nearly equal in size, but those of the last pair are 

 somewhat larger, and push backwards the two thin septa 

 xii.-xiii. and xiii.-xiv. 



No prostates are recognizable with the dissection lens. 



The ovaries depend in the xiii. segment from the ventral 

 margin of septum xii.-xiii. 



The sperniathecae are quite intersegmental in position, and 

 ihey appear as white little splierical bodies, which are visible 

 through the thin body-wall. They are not provided with a 

 distinct duct. Their number may reach to six pairs on each 

 of the intei segmental furrows xiii.-xiv., xiv.-xv., xv.-xvi., 

 and xvi.-xvii. 



Hah. Achencoil River banks (J/r. Shungara Naraf/ana, 

 3. V. 1910), Arumanallur, 45 km. E.S.E. from Trevandrum 

 {idem, 23. vi. 1910), ? Azhagiapandipuram, 55 km. E.S.E. 

 from Trevandrum (young specimens, idem, 20. vii. 1910). 



A specimen from tiie second locality shows its external and 

 internal organs transferred three segments forwards. Its 

 male pores are on intersegmental furrow xxvi.— xxvii., a 

 little laterally to the lines of setee h. The anterior end is 

 regularly shaped and shows no signs of regeneration. 



Memoirs cited. 



(i) Benham, W. B.— 1902. On a new Species of Earthworm from 

 Norfolk Island. Trans. & Proc. N.Z. Inst. xxxv. 



(2) CoGNETTi DE Maetiis, L. — 1905. Sui peptonefridi degli Oligo- 



cheti. Boll. Mus. Zool. Anat. Comp. Torino, xx. 



(3) CoGNETTi DE Maktiis, L. — 1908. I cosidetti "peni" del Crio- 



drilini. Atti. R. Ace. d. Scienze di Torino, xliii. 



(4) Fedaeb, S. M. — 1897. On some Earthworms from India, J. 



Bombay N. H. Soc xi. 



(5) HoEST, R.— 1892. Earthworms from the Malay Archipelago. 



M. Weber's Zool. Ergebn. einer Reise in Niederl. Ost-Indien, ii. 



(6) MiCHAELSEN, W.— 1897. _ Oligochaeten. Abh. Senckenb. Nat. 



Ges. Frankfurt-a.-M. xxiii. 



(7) MiCHAELSEN, W.— 1900. Oligochfeta. Das Tierreich, Lief. x. 



