132 Mr. E. A. Smith on new Land-Shells 



upon the lower band, which is of a somewhat darker tint than 

 the upper one. • 



Nantna Rumphn, var. 



A specimen collected bj Mr. Carl Bock at Sydjoendjoeng 

 differs somewhat from the normal form of this species. It is 

 much more acutely keeled, and the curved lines of growth 

 are rather more strongly granulated. It has not been previ- 

 ously recorded from Sumatra. 



Nanina foveata of Pfeifferis another variety of this species, 

 being peculiar on account of the wore or less undulate or pli- 

 cate character of the upper surface. The locality " India " 

 must be regarded in the sense in which it was formerly used, 

 as applying to the East Indies and not to British India only. 



Nantna subconsul. 



Testa N. consuli simillima, superne tamen minus nitida ; anfracti- 

 bns paulo planioribus instructa, sculptura minutissime rugulosa 

 superne ornata, inferno spiraliter microscopice striata. 



Diam. maj. 19, min. 17 ; alt. 10| mill. 



Rah. North Borneo {John Whitehead). 



This species is very closely related to N. consul, and is 

 only distinguished from that species by its duller upper sur- 

 face, resulting from a different microscopic sculpture, and its 

 slightly less convex whorls. The spiral strife on the base are 

 visible under an ordinary lens, but the minute rugulose lines 

 of the upper surface are discernible only under a stronger 

 magnifier. 



Helix (Trochomorpha) conicoides, Metcalfe, yar. parva. 



Two specimens collected in Northern Borneo by Mr. John 

 Whitehead are exceptionally small and depressed, and 

 remarkable also on account of the basal margin of the peri- 

 stome being slightly thickened, narrowly expanded, and 

 reflexed, a feature which does not occur in ordinary examples. 

 In colour, texture, and sculpture they offer no differences. 

 Although consisting of seven whorls, the greatest diameter is 

 only 11 millimetres. 



Helix [Geotrochus) hantamensis. 



Testa elate conica, perforata, mediocriter tenuis, griseo-alba ; an- 

 fractus 7, tres superiores convexi, cseteri planiusculi, minute 

 granulati, striisque incrementi sculpti, ad suturam carina mar- 



