228 THE PB0CEEDING8 OF THE LINNEAN SOCIETY 



crehre, sed regulariter et cequidistanter striatis, superne concinne 

 marginatis ; costis hrevibus, latis, rotundatis, in Tnedio elevatis, 

 ultimo anfr. evanidis ; apertura angusta, elongata, peristomate 

 valde incrassato ; sinu profandOf ohliquo, margine tumido, labro 

 solido, canali brevi^ labio encaasto, exacte definito. Strioe incre- 

 menti valde flexuosoe. Alb. 11, lafc. 4, long, spirce 7. 



This interesting little species which does not appear to be very 

 common at Muddy Creek, bears considerable resemblance to our 

 existing D. Beraudii, which is common on the S. E. coast of 

 Tasmania. It is a fusiform shell with the spire much longer than 

 the aperture, the whorls are studded with many short blunt 

 tumid ribs, and regularly spirally grooved ; they are very dis- 

 tinctly margined above with a rather broad flat space which is 

 thickly covered with curved striae. The ribs disappear on the 

 last whorl, but there are very distinct undulose lines of growth 

 instead. The aperture is long and narrow with a thickened 

 raised margin almost all round it. The sinus is deep and oblique 

 with a swollen edge. The outer lip is thickened and the inner 

 one is enamelled and exactly defined. The canal is short, 

 straight, and truncate. The nucleus is smooth and shining, of 

 two whorls. 



I have dedicated this fossil to Mr. Trevor Winter, who obtained 

 the greater part of this collection for me when temporary illness 

 prevented me from visiting the beds in person. I am not aware 

 of any fossil species nearly resembliag it. 



CONUS RALPHII. PI. 21, fig. 14. 



C. parva, anguste ovata, spira elata, solidtvscula, nitente ; anfr. 

 nucleo (2) incluso, superne concinne striatis, ad angulum anguste 

 marginatis et coronatis, granulis quadratis ; idtimo lineis incre- 

 mentl insignito, hasim versus spiraliter declivi striato, apertura an- 

 gusta^ nucleo IcBvi, tumido. Alt. 10, lat. 5. 



Shell small, rather narrowly ovate, with a somewhat produced 

 spire rising in stages, which are very distinctly granular, the 

 granules being square and large. The upper part of the whorls 

 is grooved with a few lines, and this grooving extends over the 

 angle of the last whorl, causing a kind of granular margin. 



