MELVILL AND STANDEN : SHELLS FROM LIFU., 287 
the sinus wide but not deeply cut, the outer lip much thickened, 
within six-denticled, columellar margin simple. Very rare, (The 
derivation of the specific name is the Latin chrysolithus from 
the golden-yellow gemme). 
M. (Glyphostoma) dialitha sp. noy. (PI. IX., fig. 26). 
M. testa turrita, elongata, ad apicem attenuata, nitida, albe- 
scente, ad basim, atque ad suturas, ochraceo tincta, anfractibus 
octo, duobus apicalibus levibus, ceteris tumidulis, ad suturas 
wmpressis, supernts binis spiraliter gemmularum ordinibus, 
penultimo et ultimo anfractu trinis succinctis, gemmults 
magnis, conspicuts, ultimo apud basim productam tuberculatis, 
apertura oblonga, labro extus corrugato, intus obscuré denti- 
culato, margine columellari trints denticulis muntto, sinu 
lato, sed non profundo, 
Long., 5, Lat. 1°50 mill. 
A pretty, small, elongate species, shining white, turreted, 
eight whorled, with impressed sutures, which are stained with 
pale ochreous colour, as is a transverse band at the base, the 
whorls are furnished, the upper with two, the lower with three 
spiral rows of large unduliferous gemmee, white, shining, mouth 
oblong, outer lip wrinkled without, obscurely denticulate within, 
sinus wide, but not deep, and extending to the outer surface of 
the peristome. (61éAv00s, decked with gems). 
M. (Glyphostoma) latirella sp. nov. (PI. IX, fig. 27). 
M. testa parva, fusiformt, turrita, anfractibus sex vel septem, 
uno vel auobus apicalibus, bullatis, crystallinis, ceterts angu- 
liferis, ventricosis, ad suturas impressts, longttudinaliter 
paucicostatis, costis latis, angulatis, irregularibus, spiraliter 
crasstliratis, liris albis, tnterstitits ochraceo-coloratis, ultimo 
anfractu ad basim attenuato, paullum producto, simili modo 
decorato, ad medium interstitialt sulco fulvtore-ochraceo, aper- 
tura angusta, sinuosa, sinu amplo, labrum effodiente, labro 
extus ad basim paullum tncrassato, intus tridenticulato, den- 
ticulis fulvis, columella tridenticulata, cum dente suturali 
similt modo fulvescente. 
Long., 4°50, Lat., 1°50 mull, 
