284 MELVILL AND STANDEN : SHELLS FROM LIFU. 



A small brightly banded shell, the colour being white, 

 banded with ochre, whorls seven, gradate, longitudinally 

 stoutly ribbed, the mouth oblong, outer lip slightly thickened, 

 columella ochre-tinged plain. Many specimens, mostly some- 

 what worn. (ddkvKpos glowing, from the bright colour). 



M. thiasotes sp. nov. (PI. IX., fig. 21). 



M. testa fusiformi, solida, incrassata, alba, Icete ochraceo-tincta, 

 dnfractibus sex, apicali nigrescenle, ceteris apud suturas fulvo- 

 ochraceis, et, supra, juxta suturas, magnopere nodulosis, nodu- 

 lis perconspicuis, paucis, nitidis, transversim striatis, ultimo 

 in anfractu apud medium simili modo nodulifcro, in specie 

 majore nodulis tumescentibus, permagnis his sub/us nodulis, 

 ochreo-zonato, duobus nodulosorum minorum ordinibus traiis- 

 versim sequentibus, cum liuea nigerrima dorsaliter a mar- 

 gine columellari usque ad basi/u labri exterioris, labro 

 paul'ium incrassata, margitie columella/ i simplice,canali brcvi. 



Long., 7*50, Lat., 2^50 mill, sp. min. 

 „ 8 „ 4-25 „ sp. may. 



A very beautiful species, and we know of no pleurotomoid 

 shell which presents the same characteristics. The whorls are 

 six, the apex pitchy black, the remainder being white with 

 bright ochreous tinting. In the younger specimens transverse 

 shining white rows of large gemmae cross the whorls just above 

 the sutures, and in the middle of the last whorl, below, there 

 are ochre bands, in the last whorl this is followed by two 

 smaller rows of gemmae, and then by a pitch black line reaching 

 from the upper portion of the columellar margin, across the 

 back of the shell, to the base of the outer lip. The more 

 mature shell is conspicuous for the very swollen row of white 

 peripheral nodules, banded below with fulvous colour. The 

 canal is short, columellar margin simple. (OiamoT-i^ a reveller). 



M. (Cythara) euselma sp. nov. (PI. IX., fig. 22). 



Jf. testa fusifornii, attenuala, (in una specimine latiore), 

 delicatula, pallidissime ochraceo, anfractibus sex, gradatulis, 



J.C., viii., Oct. 1896. 



