228 



peristome entire, the outer margin of which is bordered by the 

 punctate-lirate face of an elevated warix. 



Dimensions. — Length, 5; widtli, 1-5. 



Locality. — Eocene ; Adelaide-})ore (4 exs.). 



9. Sealaria (Punetiseala) bulbulifera, >^pec. nov. 



Shell small, slender, acute, solid, imperforate ; ordinary whorls 

 seven and a-half, moderately convex ; nuclear whorls two, smooth, 

 very tumid, disproportionately large, the last one and a-half 

 forming an obtuse bulbiform apex to the spire. 



The spiral sculpture consists of linear sulcations or flattened 

 crowded threads (about 15 on the penultimate whorl) ; the ex- 

 tremely narrow interspaces are punctate, at least those on the 

 last and penultimate whorls. 



The transverse ornament consists of rather stout, subacute 

 medially thickened, slightly oblique costae, about 10 on each of 

 the anterior whorls ; and of elevated, narrow rounded varices, two 

 on each whorl. The spiral threads pass across the costse but are 

 interrupted by the varices. 



Aperture circular, with a groove around its inner margin, out- 

 side of which is the punctate-striated anterior face of the elevated 

 varix. Base slightly concave, defined by a strong keel, concen- 

 trically finely striated. 



Dimensions. — Length, 6; breadth, 2; aperture, 1. 



Locality. — Eocene ; not rare at Muddy Creek ; worn and pro- 

 bablv derived in Miocene-beds at the same place. 



10. Sealaria (Punetiseala) eritima, ^^pec. nov. 



Shell stout, elongate, acute, imperforate; ordinary whorls 11, 

 flatly com-ex, suture partially concealed by the crenatedly-extended 

 maro-in of the preceding whorl ; apical whorls three, very convex, 

 of gradual increase. 



The spiral ornament consists of punctated linear sulcations 

 (about 20 on the penultimate whorl), rather crowded in front of 

 the suture, but about twice the width of the linear furrows on 

 the rest of the whorl. 



The transverse ornament consists of nearly straight, rather 

 thick and elevated, convex costse, slightly denticulatedly-produced 

 at the posterior suture, but are in an alignment from whorl to 

 Avhorl ; there are about 12 costse to a whorl, and five or six pro- 

 minent varices on the spire ; both costa? and varices are crossed 

 by the spiral grooves. 



Base angulated by a prominent keel, widely crenulated by the 

 costaj ; the anti-peripheral area is narrow and abruptly concave, 

 somewhat undulose transA'ersely, concentrically punctatedly- 

 grooved. 



Aperture circular ;"'peristome entire, with a groove around its 



