iqar.J 



B. Prashad : Sumatran Molluscs. 



463 



I have not included references to the monographs in Martini 

 and Chemnitz " Systematisches Conchylicn Cabinet" pubhshed 

 during the recent years. 



I have also here to express my great indebtedness to Dr. N. 

 Annandale for the great help he gave me while I was working out 

 this collection and for his valuable advice given ungrudgingly at 

 all times. 



von Martens' list 

 ( 1S971. 



Species descrilied or 

 recorded since von 

 Martens' paper in 



1897- i 



Mr. den Doop's 



collection. 



GASTROPODA . 

 PII.MOXA l.\. 



.\URICULIDAE. 

 Pytliia 



Cassidula 



Ativicula 



Melampiis 



LiMNAEIDAE. 

 Limuaea 



Plaxorbidae. 



Planorbis (in part) ^ 

 Indoplanorbis. 



Planorbis (in part) = 

 Gyraitlns. 



Segmentina 



Isidoya ^ Pliysasti'a 



PROSOBRANCHIA. 



Ampullariidae. 



Ampitllaria (in part)=: 

 Pachylabra. 



ViVIPARlDAE. 



Vivipara 



panthcrina, iindata 



aiiris-felis, maltipli- 

 caia, tnnsfelina. 



midae.j-.idae, scheep- 

 makeri. 



javnnica. brevispiya ' 



iiidicits =: exiistiis ... 



s?tmaty(ii7i:s. pyocli- 

 vis. 



Sftnuitrt'nsis, stag na- 

 il's. 



ampiillacea, involu- 

 ia, scntaia'=-conica. 



gyassicosfa, sumat- 

 rensis, hamiltonl. 

 ingalsiana. 



scarabeiis, impeyfo- 

 ratiz. 



fasciatus 



javaincayar. angns- 

 tior. excava^a, bon- 

 gsonensis. 



sagoen^is (probably 



a Gyraiilns). 

 hennaydi 



ampiillacea var. sii- 

 m at rensis. 



javanica, javanica 

 \3ir. siimatrana, sii- 

 matyensis, deli en- 

 sis. 



trigona plicata, iin- 

 data. 

 nuyis-felis. 



midae, jiidae, limnaei- 

 formis (sp nov.). 

 peycha (sp. nov.). 



javanica and vars. in- 

 tumuscens, subteres, 

 angttstiov, porrecta, 

 costulata and tuygi- 

 dnln. 



exastiis. 



convexiscnlus, siima- 



tranus, proclivis. 

 calathiis. 

 doopi (sp. nov. ). 



conica, ompullacea 

 vars. typica C = cele- 

 bensis), sitmatyensis 

 and magnifica. 



sumatyensis, hendyici, 

 (sp. nov.), javanica 

 with vars. laevioy, 

 saleyeyica, ynousso- 

 ni, scalayis, borneen- 

 sis. 



' Dr. Annandale and I have recently established {Proc. As. Soc. Bengal, XIV, pp.460 — 

 462, pi. xii, figs. 4, 4a and text-fig. 2) the genus Omia for a Japanese species and we believe 

 that the Sumatran L. byevispiya also probably should be assigned to it. 



