262 SPOLIA ZEYLANICA. 



extend backwards through several segments from septum 11/12, as 

 far as segment XVI. ; they are dilated m their posterior portions. 



The spermaihecae are in segment VIII. ; they are comparatively 

 small spherical sacs, with a much-coiled duct in the same segment. 

 This duct comes forwards into VII., where it joins the posterior 

 face of the muscular spermathecal atrium near its base. This 

 muscular sac is of moderate size ; narrowing at its base, it becomes 

 a tube which runs for a short distance in a lateral direction to open 

 externally in furrow 7/8. 



Remarks. — This species is on the whole not unUke D. ramnadana, 

 Mchlsn. (9) , from which however it is distinguished by two important 

 features : (1) the presence of a characteristic copulatory area; (2) the 

 fact that the vas deferens enters the prostatic mass at the proximal 

 (inner) end of the latter, not at its basal front, in the thickness of 

 the body-wall. 



Lampito mauritii, Kinb., var. zeylanica, var. nov. 



Two specimens, one not fully mature. 



In rotten wood, in the hotel compound, Anuradhapura (low 

 country) , Ceylon. October, 1911. In a tube along with a specimen 

 of Dichogaster a/finis. 



External Characters, — Length 4 inches ; breadth 3 1/2 mm. 

 Colour gray. Segments 147. 



Prostomium prolobous. 



First dorsal pore in intersegmental furrow 12/13. 



The clitellum extends over segments XIV.-XVII. = 4 ; it does 

 not obliterate the limits of the segments ; setse are present on the 

 elite liar segments. 



The male apertures are situated in large round sucker-hke depres- 

 sions, with raised and swollen margins, on segment XVIII. The 

 interval between the apertures is equal to 1/4 of the circumference ; 

 there are no setJB in this interval. 



The female aperture is not very conspicuous, median, on the 

 anterior part of segment XIV. 



I failed to see the spermathecal apertiires ; and there are no other 

 genital marks of any kind. 



The setse are in a chain, which is interrupted both ventrally and 

 dorsally. VentraDy aaz=3 1/2 ab (ui front of the clitellum = 3 ab) ; 

 and dorsally zz = 2-2 1/2 yz. There is no regular difference between 

 the setal intervals in different parts of the chain ; no setae are 

 specially enlarged. The numbers of setse are as follows : — 36/VI., 

 ca. 45 /IX., 33/XIX., 33/XXV., and 34 in the middle of the body. 



Internal Anatomy. — Septa 6/7 and 7/8 are somewhat thickened, 

 8/9-12/13 much thickened, and 13/14 again somewhat thickened. 



The gizzard is in segment VI. There are yellow bulgings of 

 the ossophagus in XI. and XII., but no calciferous glands. The 



