336 ME. r. E. BEDDAED Olf EARTHWORMS [^Pf- 1^. 



2. On some Earthworms from British East Africa ; and on 

 the Spermatophores of Polytoreutus and Stuhlmannia. 

 By Frank E. Beddard, M.A., E.R.S. 



[Received April 1, 1901.] 



(Text-figures 83-88.) 



Contents. 



(1) On some Earthworms from Eastern Tropical Africa in the Collection of 



the British Museum, p. 336. 



(2) On the Spermatophores of Polytoreutus, p. 340. 



(3) Oil the Spermatopiiores of Stuhlmannia, p. 344. 



(4) On the Ovaries, Oviducts, and Sperm-ducts of StuUmaimia, p. 351. 



(5) Contributions to oar Knowledge of the Genus Gordiodrilus, p. 358. 



(1) Oil some Earthivorms from Eastern Trojncal Africa in 

 the Collection of the British Museum. 



Mr. E. Jeffrey Bell has been so good as to forward to me for 

 identifi.cation a number of earthworms which were collected by 

 Mr. L. S. Hinde, C.M.Z.S., at Titui, in elevated country some 3000 

 or 4000 feet in altitude. The specimens were sent to Prof. Lankester 

 at the Museum, and are of two, possibly three, species. The larger 

 individuals, of which there are three specimens with the head end 

 perfect, beloug to the genus Polytoreutus, a genus that is, so far as 

 we know at present, peculiar to East and Central Africa; the small 

 worms are referable to the genus Benhamia. 



Of the larger specimens two at least belong to an undescribed 

 species of Polytoreutus ; while the third, upon which I shall offer 

 some necessarily brief observations, seems to me not to belong to 

 that species, but to some other which may or may not be new. I 

 shall call the new Polytoreutus. 



Polytoreutus hindei, n. sp. 



The larger of the two specimens, the only one which is absolutely 

 complete, is also fortunately fully mature, with the clitellum 

 developed — so far as I can judge — to its full extent. It measures 

 130 mm. in length and is a fairly stout worm, having a diameter 

 of 5 mm. The external characteristics of this species enable it to 

 be distinguished from any other species ; it seems to bear the 

 closest likeness to Polytoreutus finni, to which species its internal 

 anatomy also affines it ; but there is no possibility, I believe, of 

 confounding the two species. The present form is, as has been 

 said, a fairly large and stout worm. Polytoreutus finni is strikingly 

 characterized by its length and slenderness. Nevertheless the 

 appearance of the area which surrounds the generative pores has a 

 certain likeness in the two species, both of which differ in this 

 respect from other species of Polytoreutus. As will be seen from the 

 accompanying drawing (text-fig. 83, p. 337), the ventral area of the 



