548 OLIGOCHAETA 



diverticula. Spermiducal glands confined to their segment, posterior pair smallest. 

 Penial setae like those of A. platyurus. Hab. — Putabla, Yaldivia. 



(34) Acanthodriltis carneus (new species). 



Definition. Length, ^1 mm. ; diameter, y^mm.; number of segments about 100. Clitellum, 

 XIII-XVI, complete. Prostomium complete. Setae paired but not very strictly, ventral 

 closer together. Genital papillae paired on IX, unpaired on X, XI. Dorsal pores begin 

 in front of clitellum. Gizzard in VI. Last heart in XII. Testes in X ; sperm-sacs 

 in IX, XI ; spermathecae with wavy tubular long diverticulum. Sp)ermiducal gland with 

 slender unornamented penial setae. Hab. — Quilipue, 8. America. 



(35) Acanthodrilus plumbeus (new species). 



Definition. Length, a8 mm. j diameter, % mm. ; mimber of segments, 54- Colour (in alcohol) 

 a dull leaden blue. Prostomium complete (?). Setae closely paired ventrally, distant 

 dorsally. Clitellum, XII— XIX, undeveloped betweett ventral setae. Dorsal vessel single 

 up to segment XIV, in and after which it is double, the tubes uniting at septa; last 

 heart in XIII. Nephridia alternate. Gizzard not strongly marked in VI. Calciferous 

 glands in XTV, XV. Sperm-sacs in XI, XII. Spermathecae consisting of an oval sac 

 sharply marked off from duct, which has thick muscular walls and is of about the same 

 length and diameter. The latter bears a short globular sessile appendix which alone 

 contains sperm. Spermiducal glands short, limited to their segments, Penial setae 

 ornamented by transverse ridges, abruptly truncated at end, but, seen laterally, end in a 

 point. Hab. — Mount Pirongea, Auckland, New Zealand. 

 I owe this species to the kindness of Capt. Broun of Drury, N.Z. 



Genus Diplocardia, Gabman. 



Syn. ? Geodrilus, Ude. 



DEPiBTiTioiir. Setae paired, absent from segment XIX on which lie male pores; 



spermiducal gland pores on XVIII, XX; clitellum, XIII-XVIII. Gizzards two 



in V, VI. Nephridia paired. Dorsal vessel double. Spermiducal glands tubular 



in appearance, but with glandular cells into lobules opening often by separate 



ducts ; penial setae small ; spermathecae three pairs in VII— IX. 



The genus at present is only known by one species, unless indeed 'Geodrilus 



singularis' of Ude be a different species. In any case it appears to me that the 



genus Geodrilus should not be separated from Diplocardia. It (Geodrilus) has, 



