34 



theca. Its enlarged terminal portion wants the thick muscular coat , which 

 envelops the remaining part of the spermatheca and is lined with a 

 layer of tall colummar cells, containing a fine granular protoplasma, 

 which no doubt secrete the fluid with fine granules, found in this 

 portion (PI. II. fig. 5). The cells lining the tubular portion have a 

 somewhat different appearance; they are not only narrower, but con- 

 sist of a more homogeneous protoplasma, that contains no granules 

 and is stained diffusedly. The diverticulum shows an epithelium of 

 very low, quadrangular cells. I bave not observed the curious alte- 

 rations, described by Beddard in the epithelium of the spermathecae 

 in sexually mature specimens of A. georgianus and A. rosae a ). 



A pair of rather large ovaries, containing numerous mature ova, 

 occupy segment XIII ; opposite to them the funnels of the oviducts are 

 situated. The external apertures of these ducts however I could not 

 find. The funnels of the sperm-ducts lie free in segments X and XI; 

 the spermatozoida are contained partially in the body-cavity, partially 

 they are enclosed in vesiculae séminales , occupying segments IX — XII. 

 The prostates are long, tubular organs, consisting of pyriform glan- 

 dular cells, which open between the tall columnar cells, lining their 

 central canal. 



2. Benhamia floresiana n. sp. 



Flores: Maumeri, Kotting, Wukur, several specimens. 

 Sumatra: Fort de Kock, a single specimen. 



The length of the largest specimens is 35 to 40 mm.; the number 

 of their segments is about 125. The body is usually discoloured; only 

 the region behind the clitellum is blackish, owing to the transparency 

 of the body-wall and the consequent visibility of intestinal contents. 

 The cephalic lobe is small, somewhat wedge-shaped, embedded 

 into the buccal segment to about the half of its length (PL II. fig. 6). 

 The anterior five segments have a greater longitudinal diameter than 

 the succeeding ones. Each segment shows in its middle a circular 

 ridge; beneath this ridge the skin appears to contain a double row 

 of glands, visible through the body-wall in some specimens. The dor- 

 sal pores commence in the intersegmental groove VI/VIL 



The clitellum is very obvious, occupying segment XIII — XXI; 

 it is incomplete, its ventral side being not or not very glandular. 



1) Quarter. Journ. of Microsc. Scieuce, Vol. XXX, p. 435, pi. 30. 



