I 



155 



mentation. The costae are acute, slightly curved, about 16 on 

 penultimate whorl, and about five sharp spiral lirse which serru- 

 late the costae ; the interspaces between the lira? with one to three 

 stout threads; the whole surface with longitudinal threads or 

 coarse striae, which do not produce so fine and close sculpturing on 

 the spiral threads as in the allied species. 



Dimensions. — Length, 19-5 ; breadth, 8-5 ; length of aperture, 9. 



Locality. — Blue clays at Schnapper Point. 



This species recalls C. inacrosjnra of the China Seas, but is not 

 so elongate, with a narrower channelled suture and strong costse ;, 

 moreover, the recent species is semi-pellucid, and has a minute 

 umbilicus. 



6. Cancellaria varicifera, Tenison Woods. 



Reference.—FvoG. Lin. Soc, KS. Wales, vol. 3, tab. 21, f. 12, 

 p. 231, 1878. 



Shell ovate, spire elevated, subacute, variced, solid, ending in a 

 small smooth pullus of IJ turns. Whorls five, convex, longi- 

 tudinally costated, costal slender, arched (about 20 on penultimate 

 whorl), and regularly Urate (about 15 on penultimate whorl) ; 

 distantly cancellated by longitudinal stout striee. Outer lip thin,, 

 lirate within ; columella triplicate. 



Dimensions. — Length, 19 ; breadth, 9 ; length of aperture, 7. 



Localities. — Lower beds at Muddy Creek ; River Murray 

 Cliffs ; blue clays at Schnapper Point. 



This is the antipodean analogue of C. evulsa, Solander, of the 

 European Eocene, differing only by its much finer ornament, and 

 by the lirae within the outer lip. 



7. Cancellaria gradata, spec. nov. Plate x., fig. 12, 



Shell thin, broadly ovate, carinate, with a moderately long,, 

 acute, scalar spire, ending in a small pullus of one and a half very 

 convex turns. 



Whorls four and a half, excluding pullus, flattened above,, 

 angulated in the posterior one-third, of regular increase ; the last 

 whorl is large and ventricose, with an elongated convex base and 

 a very small broad beak. Suture impressed. Anterior portion 

 of whorls tessellated by acute spiral ridges (six on the penulti- 

 mate) and more slender, straight transverse threads, producing 

 very small acute tubercles at the intersections ; the oblong de- 

 pressed interspaces transversely striated. 



The keel is serrately crenulated ; the posterior area with a. 

 median spiral thread, arched transverse striae, and oblique plica- 

 tions, which become obsolete before reaching the suture. 



Aperture quadrately oval, angulated at the keel and at the base 

 of the pillar. Outer lip crenulated on the thin edge, lirate within. 



