200 OLIGHOCHAETA 



' entortille comme serait un Gordius ' is the long spermathecal duct, is correct ; the bodies termed 

 by Pebeier ovaries are evidently the egg-sacs ; they are figured as containing ripe ova. 



Peeeier states that the spermathecal orifice is on a line with the ventral pairs of setae ; 

 this is possibly an oversight. The spermatheca itself is furnished with a pair of large stalked 

 glands. I have suggested that these are comparable to the diverticula of the spermatheca so 

 common among earthworms. With this suggestion Benham agrees, but makes the additional 

 remark that they correspond to the bilobed sac which he discovered at the end of the sperma- 

 theca in Moniligaster indiaisj this appears to me to be a reasonable view to take. 



The sperm-duct is figured and described by Pereiee as possessing a quantity of little leaf-like 

 bodies attached to it; these can be nothing else than the folds of the sperm-duct, which in this, 

 as in other species of the genus, is extremely convolute. The spermiducal gland of this species is 

 rather unlike that of others ; it is long and is bent upon itself near to the summit, the two parts 

 running parallel ; but they are not, as in Moniligaster inridis, of equal length ; one part is not so 

 much as one-half the length of the other ; the sperm-duct is represented as joining the gland at the 

 point where it bends upon itself. 



(2) Moniligaster barwelli, Beddaed. 



M. barwelli, Beddaed, Ann. and Mag. Nat. Hist. 1886, p. 94. 

 M. beddardii, Rosa, Ann. Mus. civ. Geneva (aa), Vol. ix, p. 379. 



Definition. Length, about ^omm.; alimentary canal with three gizzards in XIII-XV ; septa 

 V/IX thickened ; sperm-sac lying half in segment IX and half in segment X. Hab. — 

 Luzon, Burmah, Flores. 



This species is one of the few which are adequately characterised ; it was 

 originally described by myself, and was at that time the second species of the genus, 

 the only other being M. deshayesi. Hoest has pointed out that my M. harwdli 

 is probably identical with Rosa's (11) M. beddardii. With this identification I fully 

 agree ; there are no difierences that can be found in the descriptions given by Rosa 

 and by myself of our two species. Rosa distinguished his M. beddardii from my 

 M. barwelli in the following details : — In M. beddardii there are only three gizzards ; 

 in my earlier description of M. barwelli I stated that there were four of these, but 

 I subsequently corrected that statement. My figure of the sperm-funnel misled 

 Rosa into thinking that these two organs differed in the two species. As to the 

 colour which Rosa had used to distinguish the two, I am not of opinion that much 

 weight can be attached to that diflference. 



I am doubtful whether to include in this species a small Moniligaster described 

 in some detail by Hoest from the island of Flores. The specimen was only 18 mm. 

 in length, and it appears to possess a protrusible penis; I should not, however, like 

 to assert positively that M. barwelli does not possess this organ ; I have indeed 



