1088 MALAYSIAN LAND AND FRESHWATER MOLLUSCA, 
Animal with the mantle margin fringed. Most of the species 
from India and Ceylon. 
Paludomus isseli, Brot, Gatt. Palud. p. 31 = P. crassxis, 
(v. d, B.), Issel, Moll. Born. p. 95. 
Sarawak, Borneo. 
P. BROTi, Issel, Moll. Born. p. 92 ; Brot, Gatt. Palud. p. 32. 
Sarawak, Borneo. 
P. LUTEUS, H. Adams, Proc. Zool. Soc. 1874, p. 585 ; Brot, 
Gatt. Palud. p. 46 = P. moreleti, Issel, Moll. Born. p. 93. 
Sarawak, Borneo. 
Note . — The Bivalves are reserved for another paper. 
EXPLANATION OF PLATES. 
Plates xxvit-xxx. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
1 . — Hybocystis elephas. 
Animal ( ? ). See p. 1073. 
2.— „ ,, „((?)• Seep. 1074. 
.3. — ,, ,, ,, Profile view. 
4. — ,, ,, Radula. See p. 1075. 
5a. — „ Portion of one of the mandibular plates, very 
much enlarged. 
Fig. 5b. — ,, ,, The same, much more highly magnified. 
(The above drawings are those of M. Fischer from the “Journal de 
Conchyliologie, xxv., 1885, p. 179.) 
Figs. 6-7. — Shell of Bulimus perversiis, L. 
Figs. 8-9. — Shell of Hybocystis elephas, De Morgan. 
Figs. 10-11. — Operculum of ,, ,, ,, 
Fig. 12. — Bulimus sp. (?) (Borneo) 
Fig. 13. — Cyclophorus sp. Thaiping, Perak. 
Fig. 14. — Helix algira, L. 
Fig. 15. —Alycreus gibbus, F^russac. 
Fig. 16. — Pirena terebralis, Lamarck. 
Fig. 17. — Helix citrina, L. 
Fig. 18. — Cyclophorus sp. Pulo-Pankore, Perak. 
Fig. 19. — Melania episcopalis. Lea. 
Fig. 20. — Nanina brookei, Adams & Reeve. 
Fig. 21.- „ sumatreiisis, Mousson. 
Fig. 22.— „ mendaiensis, Semper. 
Fig. 23. — ,, huyonis, Pfeiffer. 
