some Earthworms from India. 219 
The body-cavity is also in communication with the exterior 
by a series of dorsal pores. 
Some of the anterior mesenteries, those forming the anterior 
boundaries of segments 6-9, form a continuous covering for the 
pharynx, each mesentery being prolonged backwards from its 
point of origin on the body-wall in a cup-like fashion, and 
fitting into the inside of the succeeding mesentery; each of 
these mesenteries is also closely fastened to the one in front 
by a series of tendinous cords which arise from its anterior 
margin, and are attached to about the middle of the mesentery 
in front. This arrangement is very like that described by 
Perrier in Anteus, but nothing of the kind is mentioned by 
him as existing in Perionyx. 
The alimentary canal is of the ordinary form. A rectum is 
developed at the terminal part of the intestine, from which it is 
marked off by a strong fold ; its length is about 2 inch. Like 
Perrier, I was unable to find any lateral caeca to the intestine. 
The vascular system consists of the usual dorsal and ven- 
tral trunks connected by eight transverse arches occupying 
segments 6-13; of these the four posterior were considerably 
stouter than the others, and no doubt serve the purpose of 
contractile hearts. In the segments following, the dorsal 
vessel gives off two small trunks on either side. 
The testes are two pairs of lobulate glands occupying the 
11th and 12th segments; each testis is united with its fellow. 
Asin Perionyx excavatus, the anterior pair is rather smaller 
than the posterior. 
The prostate glands are large and well developed; each is 
composed of a number of small lobules, and differs therefore 
from the prostate of Pertonyx excavatus, in which species the 
prostates are of circular form and exhibit hardly any traces of 
division into lobules. In this respect therefore Pertonyx M‘In- 
toshiv approaches rather more nearly to the typical Megascolex. 
Hab, Akhyab, Burmah. 
Typheus orientalis, nov. gen. et sp. 
(Pl. VILL. figs. 1, 2, 4, 9-12.) 
The anatomical characters of this earthworm appear to be 
quite different from those of any other genus as yet described ; 
it belongs to the “ Intraclitellian”’ group of Perrier. 
External characters —TVhe largest of the three specimens 
which the collection contained measured 10 inches in length 
and about 1 inch in breadth; the form of the body is 
eylindrical, and the anterior portion is not at all dilated. 
The sete are arranged in four pairs, and are ventral in 
position; upon the segments which form the clitellum only 
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