1919.] E. W. Vredenburg : Shells of the family Doliidce. 187 



Vizagapatam, one specimen (Moti Ram). 



Vizagapatam, between Dolphin's Nose and Scandal Point, 18 Jan. — 17 June, 1916 

 {Rev. H. Hosten, S.J.), two specimens. 

 Locality uncertain, six specimens. 

 This shell also occurs at Puri. 



Dolium (Eudolium) zonatum, Green. 



Hongkong, three specimens, one of which is a very large shell with a super- 

 numerary varix. 



Locality uncertain, one specimen. 



Also represented by a fossil variety in the pliocene of Java. 



Dolium (Malea) pomum (Linn.). 

 Andamans, four specimens. 

 Kachh, two specimens. 

 Laccadives, one specimen. 

 Maldives, one specimen. 

 Mauritius, one specimen. 

 Singapore, one specimen. 

 Locality uncertain, six specimens. 



Dolium (Malea) ringens (Swainson). 

 Panama, three specimens. 



Genus Pirula (Lamarck, 1799), Sowerby, 1823. 

 (= Ficula, Swainson, 1840). 



The Indian Museum collections contain the following species : — 

 Pirula reticulata, Lam. "^ 



„ papyratia, Say I 



,, tessellata, Kobelt }> Group of P. reticulata. 



,, decussata, Wood 



,, dussumieri, Val. 



,, ficus (Linn.) 



,, investigatoris (Wood-Mason and Alcock), E. A. Smith. 



The genus seems therefore to be complete as these are apparently the only well- 

 defined species known living. 



Unlike the genus Dolium, which seems to have reached the climax of its develop- 

 ment at the present day and is not known in formations older than the middle 

 tertiary (oligocène), the greater number of fossil representatives being upper miocène 

 and pliocene, Pirula is known from cretaceous times, and the fossil species are more 

 numerous than the recent ones. A complete review of the genus such as was attempted 

 in the case of Dolium would belong therefore more to the province of palaeontology 



