I92I.] J. Stephenson: Indian Oligochaeta. 767 



most appears bifid, owing to the thinness of the expansion between 

 its thicker margins. 



No copulatory setae were discovered in the spermathecal 

 region. 



Fam. LUMBRICIDAE. 



Subfam. MICROCHAETINAE. 



Gen. Glyphidrilus, Horst. 



Glyphidrilus annandalei, Mich. 



Forest of Shemoga and Kadur Dists., Mysore, S. India. May, io2(i. 

 .\. Subba Rau. .\ number of specimens. 



Most of the present specimens appear to have undergone 

 autotomy a little distance behind the genital region, or in some 

 cases further back, near the hinder end. Two specimens in which 

 the characteristic ridges and papillae were only just beginning t-o 

 appear had not broken ; possibly the worms are more liable to 

 fragmentation at the time of sexual maturit}'. 



The clitellum begins in these specimens in xvii or even xvi, 

 and ends indistinctly about XXXV or xxxvi. The "wings" begin 

 in XXV (i.e. rather in front of the usual place) ; but they are not 

 in any of the specimens continued further forwards as lower 

 ridges. 



The midventral series of papillae are almost constant in 

 position, on segments xiii-xxi (once xii-xxi) ; they regularly dimin- 

 isli in size posteriorly. The anterior lateral series also begin constant- 

 ly onxiii, and show in every case a peculiar arrangement, not noted 

 in any previous account of the species ; the first papillae of the series 

 are situated between the lines b and c, succeeding ones rapidly 

 become more dorsal, so that the fourth and fifth, on segments xvi 

 and xvii, are between c and d ; the series then returns even more 

 rapidly to its original alignment, so that the seventh papilla, on 

 segment xix, is again between b and c. This anterior lateral series 

 ends on segment xxiv ; there is another .short series, as usual, 

 behind the " Vvings." 



In contrast to previous data for the species, the whole papillar 

 arrangement is very constant, and peculiar in the respect noted 

 above ; but it does not seem worth while establishing a variety 

 for the present specimens. 



REFERENCES TO LITERATURE. 



(i) Beddard, F. E. The Earthworms of the Maldive and L,acca- 

 dive Islands, in : The Fauna and Geography of the 

 Maldive and L,accadive Archipelagoes, ed. J. S. 

 Gardiner, I, p. 374. Cambridge, 1903. 



(2) Bourne, A. G. On Indian Earthworms. Part I. Prelimi- 

 nary Notice of Earthworms from the Nilgiris and 

 Shevaroys. Proc. Zool. Soc. London, 1886, p. 669. 



