9° 



SYKES : NON-MARINE SHELLS FROM THE EAST INDIES. 



Recalling 0. numjinafa, MiilL, but diftering in the sculpture, compres- 

 sion of the last whorl, shape of the spire, etc. From O. koheU.iana, Pfr., 

 which it appears to resemble in sculpture, the general shape, descending last 

 whorl, etc., should suffice to distinguish the present shell. I have seen two 

 specimens, agreeing entirely except in size. It is always difficult to say 

 whether a sculpture of the nature of that found on the present shell is formed 

 by close-set pits or real granules. 



Papuina eeolorata, n. sp. 



PI. ix, fig. 2. 



Shell trochiform, umbilicate, thin, transparent, white faintly tinged with pale 

 yellow, protoconch large, polished, smooth, the residue of the shell lightly 

 marked by growth lines and, very obscurely, subgranulose ; whorls 5^ — 6, 

 the earlier ones somewhat convex, the later flattened, the last whorl strongly 

 keeled at the perij)hery, flattened on the base, and somewhat compressed 

 behind the mouth ; aperture very slightly descending, subquadrate, white 

 within, the lip at the upper edge of the outer margin is not reflected, but 

 gradually becomes so towards the base, and the columellar margin is incras- 

 sated, well expanded and reflected over the umbilicus, half concealing it. 



Alt. (to base of lip) 16; diam. max. 28 millim. 



Hah. — Batjan. 



Though this shell has no striking peculiarities still, as I have been un- 

 able to attach it to any form known to me, I have given it a name. Its only 

 salient characters are the thin shell and entire absence of any colour pattern. 



Papuina semibrunnea, n. sp. 

 PI. ix, fig. I. 



Shell umbilicate, orbicular-conoid, apex somewhat acute, fairly solid, witli a 

 thin deciduous periostracum, lines of growth moderately distinct, traces of 

 microscopic granulation are seen, chiefly on the base ; apex chestnut brown, 

 after about the first whorl and a half a white zone appears below the suture, 

 gradually widening until the upper half of the last whorl is wliite and the 

 lower (basal) half chestnut-brown ; whorls 5^, plano-convex, suture indistinct, 

 the last whorl is subcarinate and descends considerably at the mouth : mouth 

 elongate oval, within it is chestnut-brown with white zones at the periphery and 

 below the suture, lip well ex[)anded and slightly reflected, chestnut-brown 

 marked with white just below the insertion of the columelki, ccjlumelhu 

 margin slanting, well reflected and almost covering the uml)ilicus. 



Alt. (to base of lip) 15 ; diam. max. 20 millim. 



Hah. — Gebi Island, 



