irs iJcn.UA, ITS PEdPi.E A.y/) nnoDL'crioxs. 



Pi.ANonnis, Gucflard. 



SlicU dcxtral. Foot small. Peristome thin. Tcntarlcs long. 



,, coMritf;ssi-s. India. Yunan. 



„ ExrsTus, Dcsli. India. Bhamo. Pign. Tenasscrim. 



p. InditiM, B. 



P. Coromdndeliamtn, Kiist. 



P. Merguiensis, I'liil. 

 „ coxvKxirscn.i's, Ilutton. Randa in Tunan. 



,, CAi.ATiius, B. Ava. 



FamiJi/ Veronicellidae. 



Yeroxicella BuKMAXoiiUM, Thcob. Aiakan. Pugn. Yunan. Tenasscrim. 



See J. A. S. B. 1873, Part II. p. 31. 



Fumili/ Onchidiidse. 



ONCHrDITM PALLIDrjI, Stol. Pegu. 



,, TiGRixu.M, Stol. Pegu. 



,, TENEitrir, Stol. Pegu. 



The species of Onchiditim are estuarine slugs, abounding in muddy spots ■within 

 the tidal area of largo rivers. The typo of tlie genus, O. ti/phie, B. H., abounds in 

 the Hugli at Calcutta. For full details of the anatomy, see Stoliczka, Jour. As. 

 Soc. Bengal, 1869, Part II. p. 88. 



Family Auriculidae. 



The animals of this family arc mostly marine marsh residents, harbouring under 

 stones and fallen trees, either in mangrove swamps actually between tide-marks, or in 

 places occasionally inundated by salt water. 



Auricula inhabits mangrove swamps and is quite at home in salt water. Pythia 

 is found in moist spots near the sea, but not inundated by the tide, or only witliin its 

 occasional reach. 



*AuEicri.A AURis-.Tri),E, L. Coast of Burma. 



* ,, Gaxgetica, B. Irrawaddy Delta. 

 ,, PusiLLA, H. ct A. Adams. Arakan Coast. 



*CASsn)ULA AUKis-FELis, Brug. Coast of Burma. 



* „ NUCLEUS, Mart. Coast of Burma. 

 ,, LABEELLA, Dcsh. Coast of Bumia. 



*PvTnrA PLICATA, For. Coast of Burma. 



* ,, TiiiGONA, Trosch. Coast of Burma. 



* ,, OVATA, Pfr. Arakan Coast. 

 Plecotrema Cumingiaxa, "W. B1. Irrawaddy Delta. 



*Melampus fasciatus, Desh. Coast of Burma. 



Persa, I[. ai a. Adatm. 



,, melanostoma, Gavi. Coast of Burma. 



Sub-order TEA LASS OPIIILA. 



Eyes sessile, on the front part of the frontal disk formed by the expanded 

 tentacles. 



Familij Ampliibolidae. 



Sliell globose, umbilicated. Operculum horny, subsjiiral. 

 Ajipui-lahina Buumana, \V. B1. Irrawaddy Delta. 



