1871.] T?. Stolkzka— Notes on Terrestricd Ifollusca. 219 



and organization. I will for the present note only the two first 

 named species which occur near Moulmein. 



In both the foot is rather short, rarely equalling in length the 

 greater diameter of the shell, depressed, truncate in front, narrow- 

 ly rounded or sometimes obtusely pointed posteriorly, covered with 

 warts and granules ; lateral line very slightly indicated, or not 

 at all developed ; body cylindrical, short, covered with rather 

 strong warts ; pedicles of moderate length, slightly thickened 

 at the end, and with the eyes small, placed centrally or very nearly 

 so ; tentacles always very short. On the whole the form of the 

 body very closely resembles that of a Glausilia, and a comparison 

 of the internal organisation of the two genera also indicates their 

 close relation. 



The mantle margin is entire, thickened towards the end, but 

 the edge itself is again thinner ; pulmonary lobes simple without 

 any appendages, the right larger than the left ; pulmonary cavity 

 very small, posteriorly closed up by a very thin lamina. The 

 digestive organs are distinguished by the small size of the oral parts, 

 great length of the stomach and of the intestines, which make a 

 long double twist, but have no caoca or other appendages. The 

 salivary glands are comparatively small. The liver very extensive 

 and of a peculiar coarsely tubular, clustered appearance. The 

 kidney is large, of triangular shape, and has a special duct at the 

 anterior end ; it terminates in the pulmonary cavity. Along the 

 aorta there is either on the right, or on both sides, a linear gland 

 of dark pigment (pg), its quantity, however, varying greatly in 

 different specimens. 



The genital organs are rather simple. The female part has two 

 appendages : one longer which is the so-called receptaculum seminis, 

 but in which I only found a light brown colouring matter inter- 

 mixed with flat irregular particles, and a shorter, more muscular 

 gland which appears to represent the arrow or amatorial gland. 

 The uterus is thin, the hermaphrodite duct very long, and the 

 hermaphrodite gland situated behind at the posterior end of the 

 stomach. The vas deferens, or seminal duct, is short and thicken- 

 ed before it passes into the penis, which is attached by a strong 

 muscle to the right median side of the mantle, but has no external 

 appendages. 



