38 



spicuous ; ai>erture narrow, elliptical ; lip thin, simple ; 

 columella slightly raised, with 4 regular slender ohlique 

 plaits; length of shell 23mil., breadth 8mil., length of 

 aperture 12mil., proportional length of body whorl ^%^q, of 

 penultimate ^^Q. This shell is, from its minute size, easily 

 distinguished. It is undonbtedly the smallest volute in the 

 Table Cape beds. Eare. 



ZizYPHiNus Tasmanicus, n.s. 



Shell trochiform, conical, bluish, of 8 regularly increasing 

 whorls ; whorls scarcely convex, and ornamented spirally 

 with sharply angulate equi-distant moniliform carinse, about 

 8 ou last whorl, decreasing in number towards apex ; inter- 

 spaces shallow, concave ; and carinse spirally covered with 

 microscopic lirae ; the whorls are also raised transversely 

 oblicjuely into gentle nndulatiug ridges, which are more 

 l)ronounced as they approach the sub-angled base, where 

 they are developed into rounded nodes ; aperture quadrate ; 

 columella abbreviate, curved ; inner lip callous, reflected 

 over umbilicus, which it nearly conceals ; base scarcely 

 convex, with 4 fine scarcely-raised equi-distant lirse, which, 

 together with interspaces, are covered Vv^ith microscopic spiral 

 lines ; apical angle 70 ^ ; long. 30mil., lat. 24mil. Eare, 

 Table Cape. This is by far the largest of the three fossil 

 species described from Table Cape. There are fragments, 

 however, of a very handsome species, too imperfect to be 

 described, which must at least be 2J times as large. 



ZlZYPHINUS ATOMUS, n.S. 



Shell thin, very minute, bluish, trochiform, conical, not 

 umbilicated, of about 4| flat whorls, each of which, with 

 scarcely convex base, are ornamented with 4 to 5 fine regular 

 equidistant spiral sulci ; aperture angular subquadrate ; 

 columella abbreviate ; outer lip thin ; inner lip slightly 

 reflexed ; loug. 2mil., lat. Imil. Eare, Table Cape. 



EUCHELUS WOODSII, 11.8. 



Shell small, elevated, conical ; whorls rounded apd rugosely 

 latticed by sharply defined filiform carinas, and fine transverse 

 raised bars, equidistant, irregularly connecting the carinse ; 

 interspaces between carinse wider as they approach base of 

 whorl ; points of intersection raised into obsolete granular 

 nodes ; 8 carinse on last whorl ; suture well defined ; aperture 

 oval ; two i)rominent teeth on columella, between which 

 and equally prominent tooth on sinister side of the throat of 

 anterior margin, a round well-marked channel is formed ; 

 outer lip crenulate ; throat distinctly channelled ; long. 

 9mil., lat. 4mil., length of aj^erture 4mil. Eare (2 specimens), 

 Table Cape. This shell has the usual latticed aj^j^earance of 



