152 Memoirs of the Indian Museum. [Voi., I, 



present species, M. perrien. The distal ends of the sperm-ducts enter the proximal 

 poles of a pair of prostates. These prostates are not elongated as in M . deshayesi, 

 in which species they reach backwards through a number of segments as far as into the 

 17th segment. In M. perrieri these organs are restricted to the nth segment. They 

 consist of a glandular part and a distinct duct. The white glandular part is about 

 twice as long as thick, formed like a very thick, somewhat bent sausage, the surface 

 of which is not smooth, but mammillated. The proximal pole into which enters the 

 sperm-duct, is directed forwards. The concavity is directed towards the body-wall. 

 Out of the convex under side, behind the middle of it, and somewhat before the 

 posterior pole of the glandular part arises the muscular duct, which is only a little 

 thinner than the glandular part and about as long as thick, and of a nacreous 

 appearance. 



Female organs: The ovaries and oviduct-funnels occupy the nth segment. A 

 pair of very large, rather thick egg-sacs depend from septum 11-12 backwards through 

 a rather great number of segments, in one case, for example, as far as into the 20th 

 segment. 



Spermathecse: Main pouch with pear-shaped ampulla and a very long, thin, 

 coiled duct. The whole main pouch lies in the 7th segment. The duct distally enters 

 a short, broad muscular atrial chamber which opens to the exterior by a short mus- 

 cular duct tapering distally. The muscular atrium has two rather short sacs not 

 differing in structure, one at the anterior and one at the posterior side, both 

 separated by septum 7-8, the thin duct of the main pouch entering the atrial chamber 

 between these two sacs. Each of these sacs is continued into a much-branched 

 glandular tube. The branching of these tubes seems to be principally dichotomous. 

 The final twigs are rather short, only sometimes as long as thick. These tubes 

 with their many branches and twigs are packed together to form a rather compact, 

 shortly ovoid, distally broader mass, enveloped by a fine peritoneous membrane. 

 Seen in toto the surface appears densely mammillated, being composed of all 

 the proximal blind ends of the final twigs covered by the peritoneum. The anterior 

 gland lies in the 7th segment, the posterior in the 8th segment. This spermatheca 

 resembles in all principal points the spermatheca of M. deshayesi with the single excep- 

 tion, that the muscular atrial chamber and its sacs are shorter and thicker than, and 

 not as distinctly tubular as, in PERRIER's species. 



Hab,— South India, Kodaikanal in the Palni Hills, 7,000'; Dr. J. R. 



HENDERSON leg., vi-07. 

 ,j ,, Tiger Shola (near Kodaikanal) in the Palni Hills, 



virgin forest, 5,500' ; Dr. J. R. HENDERSON leg., 

 vi-07. 



Remarks. — Moniligaster perrieri is closely allied to the type species of its 

 genus, — M. deshayesi, PERRIER. It differs from the latter in the position of the 

 sexual p.ores, in the number of gizzards, in the shape of the prostates, in 

 the length of the atrial chamber of the spermatheca and in the length of its atrial 

 sacs. 



