152 



rather tumid, polished, obsoletely striate, suture widely mar- 

 ginate and scarcely oblique, impressed ; aperture pyriform, 

 plait inconspicuous, oblique. Rare. Blackmau's Bay. W. 

 Legrand and W. F. Petterd. 



No. 57. Stylifek tasmanica. n.s. S.t. parva, pyramidafa, lactea, 

 pellucida, Icevi, nitente ; anfr. 7, convexis, sutiira impressa, vix declivi, 

 apertura oblique j)ijriforme, apice mammilato, sinistrorso, lahro producto, 

 incurvo, antice et j^ostice emarginato, labio inco7ispicuo sed reflexo. Long. 

 4, lat. li. 



Shell small, pyramidal, milky white pellucid smooth, shin- 

 ing ; whorls 7, convex, suture impressed scarcely sloping, 

 aperture obliquely pyriform, apex mammilated, sinistral, outer 

 lip produced, incurved, emarginate at each side, inner lip in- 

 conspicuous but reflected. Blackman's Bay. W. F. Petterd. 



DuNKERiA FAsciATi. Mihi. (vide Proc. Koy. Soc. Tas., 1875) 

 should be, I think, Alvania fasciata, in which section are 

 deposited turretted Bissoidce with tumid whorls. Even then 

 I think the genus needs revision. In the species in question 

 I should amend the diagnosis by saying that " bicarinate " 

 hardly applies to more than the upper whorls, and otherwise 

 the species is regularly and equally clathrated. 



No. 58. RissoA (ALVANIA?) CHEiLosTOMA. U.S. R.t. turrita, parva, 

 elongata undique regidariter clathrata, bitea, sollda, vix nitente ; apice 

 pallidiore, sed non aliter conspicuo ; anfra. 7, convexis, regidariter cres- 

 centibus ; sutura profunde impressa et tenuiter uno-lirata ; apertura 

 producta, ovali, integra, conspicud bilabiato ; basi convexa, lirata. Long. 

 3, lat. 1 mil. 



A minute turretted yellow shell, conspicuously latticed 

 throughout, with a produced aperture which is bilabiate and 

 entire. Dredged by Eev. H. D. Atkinson at Long Bay in 

 20 fathoms shell sand. The entire bilabiate mouth and 

 turretted habit easily distinguish it from Bissoa (Alvania) 

 fasciata. 



No. 59. RissOA AGNEWi. R.t. turbinato-turrita, solidiuscula, sub- 

 diaphana, nitente, varie lutea ac fidva nebidosa, apice turbinato, IcBvi ; 

 anfr. 6, (nucleo incluso), conspicue 4-carinatis ; carinis validis, elevatis, 

 angibstis, IcBvibus, 7iitentibus ; interstitiis longitud. tenuissime striatis ; 

 apertura integra, ovata ; labro producto ; labio inconspicuo. Long. 3, 

 lat. 1, mil. Blackman's Bay, W. Legrand, and W. F. Petterd. 



Shell turbinately turretted, rather solid,translucent, shining, 

 irregularly clouded yellow and brown ; apex turbinate, smooth, 

 whorls 6, nucleus included, conspicuously four keeled ; keels 

 valid, raised, narrow, smooth, shining ; interstices very finely 

 striate lengthways, aperture entire, ovate, outer lip produced, 

 inner )ip inconspicuous. Obs. Distinguished by its four keels. 



No. 60. EissoA CYCLOSTOMA. U.S. R.t. cylindruceo-elongata, pupce- 

 forme, subturrita, medio tumida, Icevi, opaca, olivacea ; apice obtuso, 

 livido ; anfr. 6, convexis, longitud. tenuiter striatis, ultim. anfr. producto ; 

 tutura linea alba marginata ; apertura. alba, integra, producta, eversa ; 

 labio reflexo, (ulhcerente, basi convexa. Long. 4, lat. IJ mil. 



