lOU 0411. K. A. SMITH ON LAND-SHELLS FEOM [Feb. O^ 



It will be seen from these tables that eight of the twenty- 

 one species also occur in Palawan to the north, whereas only live 

 extend into Borneo, and two of the five are likewise found in 

 Palawan. 



The relationship of the fauna may, on the whole, be considered 

 to preponderate in favour of that of the Philippines rather than 

 of that of Borneo. 



The geuera Biplommaiina and Puphm are now quoted for the 

 first time from Balabae. Both occur in Borneo and Palawan. 



Banguet Island. 



CoMostijla nati/rus, Broderip, and Hemiplecta obliquata, Keeve, 

 are, I believe, the only species yet recorded from this little island, 

 situated bet^ een Borneo and the island of Balabae. 



Examples of the following eight species were collected by Mr. 

 Everett : — 



1. Everetiia bangueyensis, Smith. Peculiar, 



2. „ subconsid, Smith. Also N. Borneo and Mengalun I. 



3. TrocJionanina alexis, Smith. Peculiar. 



4. BelLr (Chloritis) tomentosa, var., Pfr. Also Borneo and 

 Karamon I. 



5. Lagochilus bangueyensis, Smith. Peculiar. 



6. Diplommatina baritensis. Smith. Also Borneo. 



7. Geofissa bangueyensis, Smith. Peculiar. 



8. Helicina usukanensis, G.-Aust. Mengalun, Usukan, Man- 

 tangak, Palawan, Sibutu, and Bilaton Is. 



Enumeration and Description of the Species. 



1. Xesta THEMIS. (Plate II. figs. 1, 2.) 



Testa anguste perforata, depresse conoidea, suborbicularis, fusca, 

 subpcllucida, supra liaud nitlda, inferne nitens, ad peripheriam 

 angulata, lineis incrementi arcuatis sculpti ; spira brevis, ad 

 apicem obtusa ; anfractus 5-6, leviter convexi, ultinms infra 

 angidum temvissime spiraliter striaius ; apertura obliqua, 

 angulato-hmata ; peristoma tenue, vtargine columellari ad 

 insertionem. paulo incrassato, brevissime expanso et rejiexo. 

 Diam. maj. 19 millim., min. 17, alt. 11. 

 Hab. Upper Padas, British North Borneo. 

 A narrowly perforated species, of a rich brown colour, a trifle 

 paler around the perforation, with a dull upper surface, and very 

 glossy below. It may possibly attain larger dimensions than those 

 given above. 



2. Xesta padasbnsis. (Plate II. fig. 3.) 



Testa angiistissime perforata, subglobose conica, tenuissima, 

 pellucida, pallide virenti-coi-nea, polita ; spira breviter conica, 

 ad apicem obtusa ; anfractus 5, convexiusculi, infra suturam 

 anguste ct concave marginaii, idtinius subglobosus, in medio 



