1^95.] BOENEO AND XEIGHBOUEING ISL.i-N'DS. 123 



ultiiiivs pemdtirmim suhceqvans ; ajjertxira irregiilariter rotun- 

 data, verticalis ; penstoma incrassatum, expansum, duplex, 

 marginibus conniventibus, callo tenui juncfis, columeUan intvs 

 dente acuto munito. 



Longit. 3 millim., diam Ig. 



Hcd). Kina Balu. 



Var. Testa mhior, paulo angustior, p)oJlide mfescens. 



Sab. Balabac. 



The above difFerences seem hardly sufficient to distinguish this 

 variety from the typical form. 



72. DiPLOMiLvTiifA BALABACENSis. (Plate IT. fig. 12.) 



Testa minima, elongata, ovato-fusifonnis, sordule albida, dextrorsa, 

 imperforata ; anfractvs 7-8, convexi, temiiter lamtVati, lameUis 

 supra anfractum pemdt. confertiordnis quam supra ; anfr. 

 idtimus penultimo miiior, antice ascendens ; apertura verticalis, 

 rotundata ; pe'nstoma incrassatum, triplex, marginibus callo 

 tenui junctis, colvmellan dente minuto intits munito. 

 Longit. 2 millim., diam. ^. 

 Hah. Balabac. 



This is smaller than any of the Bornean species. There is a 

 marked difference in the proximity of the fine lamellae, or threads, 

 upon the penultimate whorl and that above it. The genus 

 Diplommatina has not previously been recorded from this island. 



73. Diplommatina baritensis, Smith. 



Diplommatina baritensis, Smith, Journ. Linn. Soc, Zool. vol. xxiv. 

 p. 350, pi. XXV. fig. 22. 



Hob. Kina Balu, Busau, Eumbang, and Banguey Island. 



Xone of the specimens from these localities agree exactly with 

 the type from Barit Mountain. In form they correspond very 

 closely, but none are so distinctly and distantly lamellated. Those 

 from Kina Balu, Busau, and Eumbang are of a dirty yellowish 

 tint, becoming reddish towards the apex of the spire, and the 

 peristomes are bright yellow. The specimens from Banguey 

 Island appear almost smooth at first sight, the fine costulation 

 being observable only under a powerful lens. They are pale and 

 subpellucid like the type, and the peristome also is likewise 

 whitish. Some of the yeUow lips are rather more thickened than 

 in the typical form. 



In the figure the spire above the penultimate whorl is not long 

 enough and too broad. Some specimens bear considerable 

 resemblance to D. concinna, H. Adams, but the penultimate whorl 

 is larger in proportion to the last. 



74. Diplommatina concoloe, Quadras & Moellendorff. (Plate 

 IV. fig. 13.) 



Diplommatina (Sinica) concolor, Q. & M. Nachrichtsbl. deutsch. 

 mal. Gesell. 1893, p. 182. 



Eab. Cagayan, Luzon {Q. Sf M.) ; Palawan {^Everett), 



