1920.] J. Stephenson: Oh'gochaeta from India and E. Persia. 255 



Eudichogaster kinneari, sp. nov. 

 (Plate XI, figs. 58, 59.) 



Nasik, 100 miles N.E. of Bombay, W. India. 22-ix-1914. N. B. Kinnear. A number of 

 specimens. 



External Characters : — The length of a fair-sized specimen is 80 mm. ; the dia- 

 meter behind the clitellnm is 3*5 mm., while the bulbous anterior end is about 5 mm. 

 thick at the sixth segment. Colour buff, no difference between dorsal and ventral 

 surfaces, the clitellum brown. Segments of a fair-sized specimen about 120; segments 

 iv-vi are biannular, vii and viii quadriannular, ix and subsequent segments up to the 

 clitellum triannular with secondary subdivisions ; triannulation again becomes marked 

 towards the hinder end of the body. 



The prostomium is small, prolobous, and withdrawn into the buccal cavity ; the 

 first segment is small, and it is divided by a mid-dorsal longitudinal groove, — a well 

 marked and constant character. 



The first dorsal pore is at the anterior border of the clitellum, in furrow 12/13. 



Behind the clitellum, and in the body generally, the setal ratios may be expressed 

 thus : — ab = J to \ aa = \ to \bc = \cd; ab is not very regular however. In front 

 of the clitellum be diminishes very considerably ; anteriorly it becomes less than 

 half aa and only about 1^ times ab, and only slightly greater than cd ; the ventral 

 couples are still widely separated from each other. The mid-dorsal interval dd is 

 about f of the circumference. 



The clitellum is extremely well marked; it is brown in colour, swollen, and 

 extends over segments xiii-xvi (= 4) ; it is deficient in a V-shaped interval ventrally 

 on xiii. Dorsal pores and indications of furrows are visible, but not setae. 



The male field is rectangular, its transverse extent greater than the longitudinal 

 (fig. 58) ; it includes segments xvii-xix. The margins, especially the lateral, are 

 much thickened ; from the anterior and posterior two tongues project, backwards and 

 forwards respectively, into the central depressed space, so that this becomes H -shaped. 

 The floor of the H-shaped depression is deeply fissured; in it two pairs of papillae, 

 one pair in each of segments xvii and xix, in the four corners of the H, represent the 

 prostatic apertures. The seminal grooves are not always distinguishable among the 

 numerous fissures of this region ; they are like those of E. ashworthi and E. prashadi, 



with an inward bend at the middle of their course, thus > (. 



The female pores appear to be situated in a broadly spindle-shaped whitish area, 

 which shows up markedly against the brown of the clitellum, anteriorly and mid- 

 ventrally on segment xiv. 



The spermathecal apertures are on the anterior part of the second annulus of 

 segments viii and ix, in the line of a. Each is in the centre of a low squarish papilla, 

 which takes up the greater part of the length of the segment. 



There are numerous other papillae both in the region of the male field and also 

 near the spermathecal pores. Almost constant are two pairs, with clean cut edges, 



