340 MR. F, B. BEDDAED ON EARTHWORMS [Mar. 16, 



chitinous-looking case, which T take to be a spermatophore. It is 

 important to notice the apparent existence of spermatophores io 

 this species, as they are structures which, apart from the Lumbri- 

 cidae, are not common among earthworms. The diverticula as usual 

 contain masses of spermatozoa, there being none in the spermatheca 

 itself. These are firmly attached to the glandular walls of the 

 diverticula: these glandular walls are composed of a layer of 

 granular, slightly staining cells, whose limits are not definable ; the 

 lumea which the cells leave is but narrow. I constantly found 

 that of the two diverticula of each spermatheca, one lay in the 

 segment containing the pouch, and the other in the segment in 

 front. 



The sperm-sacs are in segments ix.-xii. inclusive. 



I did not observe the shape of the peninl setce, but ascertained 

 their presence. 



(3) Acanthodrilus arenarius, n. sp. 



Of this species Mr. Purcell collected 23 specimens "in wet 

 sand under stones on the edge of a small vley (lake), situated at 

 the beginning of the sand-dunes due east from Wynberg station.'' 



This is a small slender species rather over two inches in length, 

 with a very prominent swollen clitellum. The measurement of an 

 average individual was 65 ram. 



The anterior end of the living worms is darkly pigmented. 



The prostomium is incomplete. 



The setce are more closely paired ventrally than dorsally. 



The clitellum occupies a portion of segment xiii. and all of 

 segments xiv.-xvi. On the clitellum the nephridiopores are obvious, 

 lying in front of seta 3. 



This species has a number of c/enital papillce; the numbers vary 

 in difPerent individuals. In the most fully developed there was a 

 single median papilla upon segments viii.-x., xviii.-xxiii. ; and in 

 addition to these unpaired papillae, paired papillae upon each of 

 segments xvii.-xix. On xviii. I found two pairs of these paired 

 papillae situated one in front of the other. These pairs were on a 

 level with the generative orifices. The papillae have a cup-like 

 appearance. In sections, the epithelium of which they are 

 composed is seen to be glandular like that of the clitellum but not 

 so deep. 



The' alimentary canal has a fairly developed gizzard. The 

 cesophagus alters its character in the xiiith segment, becoming 

 rather wider and thinner-walled. In front the epithelial walls 

 are folded, the only trace of calciferous glands which the worm 

 possesses. The intestine begins in segment xv. 



The spermatliecce are as usual in viii., ix. Each is a thin-walled 

 oval pouch which communicates with the exterior by a much 

 thicker-walled widish duct ; into the latter open two sausage- shaped 

 diverticula, one of which appears invariably to lie in front of the 

 other in the segment, in fact in front of that which contains the 

 pouch. The lumen of the diverticula is narrow, and attached to 



