1889.] LAND-SHELLS FROM BORNEO. 34/ 



This is the Bornean representative of the Indian Alycceus gra- 

 phicus and A. otiphorus ; there is a large series in the collection. 



I am informed by Mr. Edgar Smith that although the British 

 Museum purchased all the types in Mr. Henry Adams's collection, 

 this shell was not among them, and that the type is probably lost. 



f^'.,. 38. Alyc.^us hosei, n. sp. (Plate XXXVII. fig. 2.) 



Shell dexlral, tnbinatcly pyramidal, narrowly umbilicated ; sculp- 

 ture very fine close regular costulation, slightly better defined at the 

 sutural tube, quite smooth thence to the aperture; colour very pale 

 with a slight tint of sea-green ; spire high ; ape.x pointed ; suture 

 well impressed, the sutural tube fine and short ; whorls 5|, sides 

 convex, the last with a slight contraction in front of the "sutural 

 tube; aperture circular; peristome sharply edged, the outer lip 

 being much expanded and rising on the last whole but one and 

 contracting again on the inner margin ; columellar margin circular. 



Size: maj. diam. bj^; alt. axis ()-25 millim. 



Hab. Busan Hills {A. Everett). 



\Yr^ 39. Alyc^us everetti, n. sp. (Plate XXXVII. figs. 5, 5 a.) 



Shell dextral, not depressedly tubinate, widely umbilicated ; sculp- 

 ture quite smooth above, close costulation at sutural tube, gradually 

 decreasing to a few distant very minute striae, fine close costula- 

 tion within the umbilicus ; colour whitish, apex pinkish brown ; 

 spire subconic ; apex papillate ; suture deep, the sutural tube 1-.5 

 millim. in length, well developed ; whorls 4, sides convex, the last 

 slightly constricted near sutural tube, then swelling and descending 

 towards the aperture ; aperture obhque ovate, angulate above at inner 

 upper margin of the peristome ; peristome double, the outer expanded 

 slightly and to its greatest extent on lower inner margin ; columellar 

 margin rounded. 



Size : maj. diam. 5-0 ; alt. axis 2'.j millim. 



Hab. Niah Hills {A. Everett). 



Only one specimen of this species was found. 



r>iA 40. Alyc^us specus, n. sp. (Plate XXXVII. .figs. 4, 4 a.) 



Shell dextral, globosely conical, narrowly umbilicated ; sculpture 

 fine rather distant ribbing, stronger at sutural tube and more distant 

 anterior to it ; colour bleached ; spire conic ; sides flat ; apex blunt ; 

 suture impressed, the sutural tube moderately long, stout ; whorls 4, 

 rounded ; aperture circular, angulate above near suture ; peristome 

 double, outer expanded ; columellar margin rounded. 



Size : maj. diam. 3-25 ; alt. axis 1'75 millim. 



Hab. In limestone caves at Jambusan {A. Eoerett). 



I found four examples of this small species when looking over the 

 cave-earth .'.ent home by Mr. Everett ; it has not yet been found 

 living, but is doubtless abundant in suitable locahties. 



