1889.] LAND-SHELLS FROM BORNEO. 337 



plain, the banding obsolete, and one is ornamented with a single 

 dark narrow band on the periphery. 



Another bos from Sarawak contains 13 specimens ; 2 are large, of 

 the violet- tinted variety, the rest are small in size ; 8 have a greenish 

 tint and finely banded olivaceous, 2 are quite white with violet apex, 

 I has a single very broad dark baud. 



From the Busan Hills 7 are similar to those from Sarawak, last 

 mentioned, greenish tinted. 



Four came from Usukan ; 2 are Hke var. B from Tiga Island, but 

 smaller ; 2 are exactly like var. C of Issel (|)1. vi. fig. 10). 



From Low Island, Mantanani grouj), the form dififers most, having 

 no raised spiral ribbing, rather large in size, delicate, thin, pale, 

 transparent shells ; var. E of Issel. 



i^.fv. . ^ "• LePTOPOMA WALLACEI, Pfr. 



Compared with the example in the British Museum. 



This banded species occurs in Dr. Hungerford's collection. It is 

 only a variety of X. sericatum, with a broad band above the periphery; 

 other shells may be picked out with the band below it. 



^^Ti, 10. Leptopoma undatum, Metcalfe. 



Cyclostoma undatum, Metcalfe, P. Z. S. 1851, p. 71. 

 Leptopoma midatum, Reeve, Couch. Icon. pi. iv. fig. 21 (1S62). 

 Hab. Sarawak {Everett). 



Leptopoma bourguignati, Issel. 



Leptopoma bourguignati, Issel, Moll. Born. h.m\. Mus. Civ. 

 Genova, p. 428, pi. vi. figs. 7, 8 (1874). 



Hab. Sarawak, 2 examples (Doria and Beccari). 



^p^ Leptopoma subconicum, Pfr. 



Leptopoma subconicum. Bock, P. Z. S. 1881, p. 634. 

 Hab. Mindai {Carl Bock). 



^^^,^_ Leptopoma tnassena. Less. 



Leptopoma mussena. Bock, P. Z. S. 1881, p. 634. 

 Hab. Mindai {Carl Bock). 



tji'Tyt ^ Leptopoma duplicatum, Pfr. 



Leptop)oma duplicatum. Bock, P. Z. S. 1881, p. 634. 

 Hab. Borneo {Carl Bock). 



/ Leptopoma whiteheadi, E. A. Smith, 



(.- f« . 



Leptopoma whiteheadi, E. A. Smith, Ann. & Mag. Nat. Hist, 

 ser. 5, vol. xx. p. 133 (1887). 



Hab, Northern Borneo {Whitehead). 



