PROCEEDINGS 



OF THE 



MALACOLOGICAL SOCIETY OF LONDON. 



DESCRIPTIONS OF SEVEX NEW SPECIES OF TERRESTRIAL AND 

 FLUVIATILE MOLLUSCA FROM THE IIADRAMAUT, SOUTH 

 ARABIA. 



By James Cosmo Melvill, M.A., F.L.S., etc., and John Henky 

 PoNSONBY, r.Z.S., etc. 



Read Sth November, 1895. 



PLATE I. 



Upon the occasion of their second visit to the Hadramant (1894-5), 

 Mr. and Mrs. J. Theodore Bent collected a few species of Mollnsca, 

 all from a desert region in the neighbourhood of Dliofar, some 800 

 miles east of Aden, and kindly placed them in our hands for exami- 

 nation. 



The specimens were, in great measure, dead shells, but all in a 

 condition to describe ; and of the nine or ten different forms included, 

 no less than seven appear new to science, the remaining two or three 

 being Melanim—M. tuherculata and what is possibly a variety of that 

 species, and also Buliminus Luntii, Melvill,' both juvenile and mature 

 shells. 



1. Stexogyra Benti^, n.sp. PI. I, Fig. 4. 



S. testa cylindrica, attenuata, hand pellucente, recta, pallide 

 ochracea, anfractibus decern, la^vigatis, vix ventricosulis, apei'tura 

 ovata, peristomate simplice, paullum incrassato. Long. 14, lat. 4 mm. 



Hah —Dliofar. 



A conspicuous shell, pale ochraceous in colour, non-transparent, 

 cylindrical, attenuate, ten-whorled, mouth ovate, lip slightly thickened, 

 simple. Named in honour of the collector, Mrs. Bent. 



2. Hyalinia (Arxofldia-) eeemias, n.sp. PI. T, Figs. 12-14. 

 H. testa depresso - conica, anguste umbilicata, corneo-pellucida. 



' Cf. Proc. MaL Soc, Vol. I, 1894, p. 224. 



- Conulus, Fitz., is preoccupied for Echinodermata. 



VOL. II. — APRIL, 1S9G. 



