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 gemmpe). 



M. (Glyphostoma) dialitha sp. nov. (PI. IX., fig. 26). 

 M. testa turrita, elongata, ad apicem attenuata, nitida, albe- 

 scente, ad basim, atque ad suturas, ochraceo tmcta, anfractibus 

 octo, duobus apicalibus Icevibus, cateris tumidulis, ad suturas 

 impressis, supernis binis spiraliter gemmularum ordinibus, 

 pcenultimo et ultimo anfractu trim's succinctis, gemmulis 

 magnis, conspicuis, ultimo apud basim produdam tuberculatis, 

 apertura oblonga, labro extus corrugato, intus obscure denti- 

 culato, margine columellari trinis denticulis munito, sinu 

 la to, 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 gemmae, 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. (SuiXidos, decked with gems). 



M. (Glyphostoma) latirella sp. nov. (PI. IX., fig. 27). 

 M. testa parva, fusiformi, turrita, anfractibus sex vel septem, 

 uno vel duobus apicalibus, bullatis, crystallinis, cceteris angu- 

 liferis, ventricosis, ad suturas impressis, longitudinaliier 

 paucicostatis, costis latis, angulatis, irregularibus, spiraliter 

 crassiliratis, litis a/bis, interstitiis ochraceo-coloratis, ultimo 

 anjractu ad basim a/tenuato, paullum producto, simili modo 

 decorato, ad medium interstitiali sulco fulviore-ochraceo, aper- 

 tura angusta, sinuosa, sinu amplo, labrum effodiente, labro 

 extus ad basim paullum inaassato, intus t/ideuiiculato, den- 

 ticulis fulvis, columella t/identiculata, cum denie suturali 

 simili modo fulvescente. 

 Long., 4/50, Lat., 1*50 mill. 



