112 



exstante, antice subtruncato; plica columellari obvia. Axis 6 

 mill. ; diam. 5 millim. Inhabits Hakodadi Bay, in sandy mud, 

 2-6 fathoms. W. S. 



Very much like P. scutulum, Loven, except in its sculpture. 

 Distinguished from P. vitrea ■ by its off-standing lip and silvery 

 grooves. 



Tornatina apicina. T. minuta, cylindracea, elongata, alba, 

 lineis incrementi tenuissimis insculpta ; apice mammillata ; anfr. 

 4, sutura canaliculate. Apertura f- long, testae, perangusta ; 

 plica columellari obsoleta ; labro lateraliter viso arcuato. Axis 

 5 millim. ; diam. 2 millim. Inhabits Sydney Harbor. W. S. 



The aperture is broader and the pillar fold less definite than 

 in T. fusiformis. 



Cylichna villica. T. minuta, ovato-cylindracea utroque 

 subconica, albo et ferrugineo cincta, lineis volventibus insculpta 

 et postice concinne plicata ; vertice late perforate Apertura 

 angusta, labro vix apicem excedente ; columella subperforata, 

 plica obsoleta. Axis 3 ; diam. 1.5 millim. China Seas. W. S. 



Cylichna ellipsoidea. T. minuta, solida, elongato-elliptica 

 eburnea, transversim striatula ; apice involuto late umbilicato ; 

 labro apicem vix excedente, late arcuato. Apertura perangusta, 

 antice acuta ; columella brevi, valida, plica modica ; ventre callo 

 copioso induto. Axis 3 millim. ; diam. l-{- millim. Inhabits Loo 

 Choo. W. S. 



Cylichna regularis. T. satis magna, elliptica, elongata, 

 alba, spiraliter insculpta, vertice obtuso late perforate Apertura 

 perangusta, admodum antice ampliata ; columella incrassata, vix 

 incurvata, imperforata ; ventre calloso. Axis 9 millim. ; diam. 

 4 millira. Froni Sydney harbor. W. S. 



Cylichna operosa. T. minuta, gracilis, cylindracea, vires- 

 eens, polita, vel ad basim minutissime circumstriata ; vertice obtuso, 

 amplissime umbilicato. Apertura angusta, linearis ; plica, colu- 

 mellari conspicua, haud perforata. Axis 4 millim. ; diam. 1 

 millim. From Hong Kong harbor. W. S. 



Cylichna l.<eta. T. parva, ovata, elongata, lactea, nitida, 

 transversim (sub lente) striata ; vertice plerumque perforato. 



