ig2i.] J. Stephenson : Indian Oligochaela. 753 



The I'oUovvini; measurements were made from two specimens 

 of the first batch: — («) Length of animal 62 mm.; whole gill- 

 bearing region one-sixth of length of animal; length of gills half 

 diameter of body ; hints of gills on seven segments, gills quite small 

 in the next seven, of moderate size on 51 segments, and small on the 

 three last (total 68 segments with gills); (b) length of animal 60 

 mm. ; whole gill-bearing region nearly one-third of the length of 

 the animnl ; length of gills half diameter of body ; hints of gills on 

 16 segments, gills quite small on the next 19, of moderate size on 

 64, and small on the terminal one or two (total 100). 



Gen. Tubifex, lym. 



Tubifex (Tubifex) tubifex (O. F. M.). 



Law's Palls below Coonoor, Nilgiris ; ca. 6500 ft., g'ivioig. X. .\iinaii- 

 dalc and R. B. S. Sewell. A number of specimens. 



The only difference from the current diagnosis discoverable 

 in the present specimens is in the ventral setae. The diagnosis 

 gives the upper prong as longer than the lower. I find them usually 

 equal, but slightly variable; either one or the other may be slightly 

 the longer. 



Gen. Aulodrilus, Bretscher. 



Aulodrilus remex, sp. nov. 



(PI. XXVIII, figs. 2-6.) 



Burhanpui-, ( entral Provinces. 4-6'iii'i9i9. F. H. Gravely. Three 

 specimens, 



Some yellowish foreign matter had to be pencilled off two of 

 the specimens, to which it adhered round a sliort length of the 

 middle of the body in the manner of an incomplete tube. 



Length 12 mm. Diameter -43 mm. anteriorly; the hinder 

 portion of the worms was however much thinner, the diameter 

 being "25 mm. one-third of the length of the animal from the 

 hinder end. Segments 49 plus a considerable region of greater 

 opacity where new segments are differentiating, and this again 

 followed by a terminal transparent region, not divided into 

 segments nor the site of formation of new segments (fig. 2). The 

 number of new segments forming in the region of proliferation is 

 very large ; in one specimen about 30 can be distinguished, while in 

 the type-specimen there are about 40, and even behind these there 

 is a cellular mass where no differentiation of segments whatever 

 can be made out, before we arrive at the transparent terminal 

 region. The worm has thus a characteristic appearance. 



There is no budding zone or sign of fission anywhere in the 

 middle of the animal's length. 



The prostomium has the shape of a blunt equilateral triangle. 

 There are no eyes. 



The dorsal setae begin in the second .segment. The bundle 

 consist of needles and hairs, the latter short, with a bayonet curve 



