44 LIEUT.-COL. H. H. GODWIN-AUSTEN ON [Jail. 6, 



coloured band and differs in form. I have named it after H.M. 

 frigate ' Meander ' which did much good service in Bornean waters 

 in the early days of Rajah Brooke's occupation. 



Helix (Chloritis) plena, n. sp. (Plate II. fig. 8.) 



Shell depressedly globose, openly umbilicated ; umbilical margin 

 hollow, subangular ; sculpture finely granulate, covered with a 

 strong epidermis ; colour pale umber-brown, with a faint indication 

 of a peripheral band ; spire low ; apex flat, slightly raised above the 

 body-whorl ; suture shallow ; whorls nearly 5, gradually increasing ; 

 aperture oval, nearly vertical ; peristome milky white, reflected ; 

 columellar margin suboblique. 



Size of specimen drawn : maj. diam. 18'8, min. 15"5; alt. axis 

 8'5 millim. 



Largest specimen: maj. diam. 190, min. 16'0 ; alt. axis 8*9 

 millim. 



Hab. Labuan {Sir H. Low, in coll. Dr. Hungerford). 



There were five examples of this shell in the collection. 



Helix (Camena) germana. 



Helix germana. Reeve, Conch. Icon. pi. Ixxiv. fig. 385 (1852), 

 =^H. orientalis, Adams & Reeve (non Gray), Zool. Voy. Samarang, 

 Moll. p. 61, pi. xvi. fig. 4 (1850). 



This is evidently not Bornean. 



Helix (Papuina) antiqua. 



Helix antiqua, Adams & Reeve, Zool. Voy. Samarang, Moll. p. 61, 

 pi. xiv. fig. 1 (1850). 



Helix (Geotrochus) niahensis, n. sp. (Plate II. fig. 3.) 



Shell dextral, pyramidal, thin texture, base flat ; sculpture, spiral 

 lirae, fine, regular, not of continuous thickness, crossed by lines of 

 growth ; colour white, with some fine marbling in a greyer colour 

 within the aperture, porcellaneous white ; spire high, pyramidal, sides 

 slightly concave ; apex acuminate; suture fine, linear ; whorls 7, 

 very flat ; aperture ovate, wide and ample, oblique ; peristome sharp, 

 coming to an angulate form at the outer keeled margin, expanded 

 and thickened below towards the columellar side. 



Size: maj. diam. ]8'8, min. IG'O; alt. axis 12'3 millim. 



Hab. Niah Hills {A. Everett). 



Only one specimen of this delicately formed and gracefully shaped 

 shell was in the collection. 



Helix (Geotrochus) tigaensis, n. sp. (Plate II. fig. 5.) 



Shell pyramidal, rounded below, narrowly umbilicated ; sculpture, 

 irregular transverse lines of growth, indistinct concentric striation on 

 base; colour very pale ochre throughout; spire pyramidal, sides 

 flat ; apex blunt ; suture linear ; whorls 6, very flat ; aperture semi- 



