MELVILL AND STANDEN: SHELLS FROM LIFU. 303 
A dark-brown very attenuate Cer/thiopsis, much resembling 
certain forms of European species, e.g. C. dadema 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. (é6eAgos akin). 
Turbonilla belonis sp. nov. (PI. X., fig. 56). 
M. testa perlonga, attenuata, crystallina, albida, anfractibus 
duodectm, ventricosis, gradatulis, paullum supra subdistortis, 
undique longitudinaliter recticostulatis, interstitits indwstincté 
striatis, ultimo anfractu ad peripheriam fortiter spiraliter 
unicostato, hac costa basim circumcingente, apertura rotunda, 
labro circiter tncrassato, intus ad labrum exterius quadrt- 
denticulato, columella supré simplice. 
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 ina 
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 Turbonilia ; T. decussata Pease has the denticled 
mouth, but there is no transverse ridge at the base of the last 
whorl in that species. ((eAovis, a small needle). 
Pyrgulina gliriella sp. nov. (Pl. X., fig. 57). 
P. testa ovata, obtusa, livido-punicea, glandiformu, anfractibus 
sex, apicalt puniceo, retorto, subvitreo, ceteris longitudinaliter 
denstcostatis, interstitiis levibus, apertura ovata, peristomate 
continuo, margine columellari fortiter uniplicato. 
Long., 2°25 mill. sp. min., 3°50 mill. sp. max., Lat., 1 mill. 
Sp. min., 1°50 mill. sp. max, 
