from the. Mala// Arcliipelaijo. -413 



(4) Ilemiplecta rasori, sp. n. 



Shell perforate, tliin, diaphanous, densely and obliquely 

 striate above, with a few faint spiral strise, greyish brown, 

 slightly striulate and shining below; spire low, conically 

 globose, suture faint, appressed; whorls 5, rapidly increasing, 

 the apical ones polished, the following ones flattened and 

 scarcely striate, the last convex, densely striate, with an 

 indistinct darker supraperipheral band, not descending ante- 

 riorly ; aperture oblique, ovate; peristome faint, not ex- 

 panded, coliimellar margin reflexed above the umbilicus. 



Diam. maj. 39, diam. min. 32 mm.; alt. 24 mm. 



T^pe locality. Raha, island of Moena, off S.E. Celebes. 



Specimen examined 1. 



(5) Uemiplecta demmeri, sp. n. 



Shell narrowly perforate, diaphanous, minutely and 

 obliquely striate above, almost polished and shining below, 

 covered with a very subtile green epidermis ; spire depressed 

 conic, apex rather well marked ; whorls b\, regularly in- 

 creasing, the upper ones somewhat flattened, the last very 

 convex, not descending anteriorly; suture well impressed; 

 aperture oblique, ovate ; peristome not thickened nor ex- 

 panded, columellar margin leflexed above the umbilicus. 



Diam. maj. 33, diam. min. 27 mm. ; alt. 22 mm. 



Type locality. Tongkok, Soembawa; another specimen 

 from Dompoe Plain, Soembawa. 



Specimens examined 2. 



; (()) Nanina irautij sp. n. 



Shell perforate, rather solid, densely and obliquely striate 

 above, with a few faint spiral striae, light chestnut, slightly 

 striulate and shining below, umbilicus dark chestnut ; spire 

 depressed conic, apex distinctly marked ; whorls 6^, the 

 upper ones flattened and rather polished ; the last scarcely 

 defiexed anteriorly, convex, very striate, with a white peri- 

 pheral band and a narrow dark chestnut one below it ; suture 

 faint, appressed ; aperture narrow, ovate, peristome not 

 thickened nor expanded, columellar margin partly covering 

 the umbilicus. 



Diam maj. 31, diam. min. 26 mm..; alt. 20 mm. 



Type locality. Baoe-baoe, Boeton, off S.E. Celebes. 



Specimens examined 2. 



