MELVILL AND STANDEN : SHELLS FROM LIFU. 303 



A dark-brown very attenuate Cerithiopsis, much resembling 

 certain forms of European species, e.g. C. diadema Watson, but 

 this latter is a larger shell. The arrangement of pattern is the 

 same, viz., three rows of papilliform gemmules, round, brown, 

 shining. Several specimens. (u8eA</>os akin). 



Turbonilla belonis sp. nov. (PI. X., fig. 56). 



M. testa perlonga, atlenuata, crystallina, albida, (infract ibns 

 duodecim, ventricosis, gradatulis, paullum supra subdistortis, 

 undique longititdinaliter recticostulatis, interstitiis indistinctc 

 striatis, ultimo anfraciu ad peripheriam fortiter spiraliter 

 unicostato, hac costa basim circumcingente, apertura rotunda, 

 labro circiter incrassato, iulus ad labrum exterius quadri- 

 denticulato, columella supra simplicc. 



Long., 8*50, Lat., 2 mill. 



A highly interesting shell, which it was at first difficult to 

 assign to any special genus. It is very long, attenuate, twelve 

 whorled, crystalline, the whorls all ventricosely gradate and 

 impressed at the sutures, longitudinally costate, the ribs being 

 straight, at the periphery of the last whorl these ribs end in a 

 strong transverse rib-process, which encircles the base. The 

 mouth is round, lip thickened, and in the inner margin of the 

 outer lip are four denticles which extend slightly within the 

 orifice. The columellar margin is, so far as can be seen, simple. 

 Undoubtedly a Turbonilla ; T. decussata Pease has the denticled 

 mouth, but there is no transverse ridge at the base of the last 

 whorl in that species. (fieXovU, a small needle). 



Pyrgulina gliriella sp. nov. (PI. X., fig. 57). 



P. testa ovata, oblusa, lividopuuicea, glandiformi, anfractibus 

 sex, apicali puniceo, retorto, subvitreo, cceteris longititdinaliter 

 densicostatis, interstitiis Icevibus, apertura ovata, peristomate 

 continuo, margine columellari fortiter uuiplicato. 

 Long., 2-25 mill. sp. min., 3*50 mill. sp. max., Lat., 1 mill. 

 sp. min., 1*50 mill. sp. max. 



