Vol. 5, p. 295-300, pi. 16. Jot,y 25, 1930. 



Occasional Papers 



OF THE 



Boston Society of Natural History. 



NEW LAND SNAILS FROM TANGANYIKA TERRITORY. 

 BY WILLIAM J. CLENCH AND ALLAN F. ARCHER. 



The following new forms herein described are based on 

 material collected by Mr. Arthur Loveridge a few years ago dur- 

 ing a trip in Tanganyika Territory, Africa. 



Euaethiops, gen. nov. 



Description. — Shells ovate-cylindric, imperforate, marked with axial striae 

 intersected by spiral granulations. Nuclear whorl small as in the other 

 Achatinidae. Aperture elongate ovate. Outer and basal margins rather 

 expanded. 



Radula of E. loveridgei fan-shaped. Central tooth with sharp, pointed 

 cusp; lateral teeth, provided with rather large basal plate, unicuspid; mesocone 

 large and conic; entocone represented by sharp, lateral protuberance; ectocone 

 a mere protuberance; dentine extending from entocone all along the margin 

 of the mesocone as far as the ectocone; formula: ] + j + 1- 



Fio. 1. Rachila of Euaethiops loveridgei, showing median tooth, first and thirtieth 

 ateral teeth. 



Lung long, only moderately vascular both on the cardiac and intestinal 

 sides, differing thus from the heavier venation of Limicolaria and Achatina. 

 Pulmonary vein large as in the case of Achatinidae in general, and possessing 

 large branches on the cardiac side. Kidney four times the length of the peri- 

 cardium. Ureter enclosed and extending from the kidney to the rectum at a 

 right angle. Stomach possessing a direct opening on side into kidney, some- 



295 



