99 



distant, largely granular spiral ridges, interstices closely, 

 finely, but very distinctly, obliquely striated with striae which 

 pass over the ridges and sometimes even over the raised 

 rounded often polished granulations ; aperture orbicular, 

 nacreous and smooth ; columella simple, not tuberculate, base 

 convex and spirally granular. Sometimes the interstices be- 

 tween the ribs have a fine sharp raised keel in the midst. 

 Long. 17, Lat. 122-. Common, but nearly always broken. 



I have dedicated this shell to Mr. Robert Etheridge, jun., 

 F.G.S., a distinguished palaeontologist and geologist, formerly 

 connected with the Victorian Geological Survey. 



Strnola bifasciata. Teuison Woods. This species which 

 is described by me in last year's Transactions of the Society 

 has been forwarded by Mr. Johnston as found fossil at Table 

 Cape. 



TuEEiTELLA WARBiTKTONii. n. s. Shell small, shining, 

 narrowli/ pyramidal, spirally ribbed and (microscopically) 

 transversely closely undulately striate, two smooth conspicuous 

 ribs at the lower part of each whorl, with others very fine and 

 of varying size above; lohorls 8-10, flattened, slightly swollen 

 above ; suture narrow and deeply depressed, apex always 

 decollated, base flattened, almost concave, with 8-10 fine spiral 

 ribs which alternate large and small, outer lip thin, inner lip 

 not reflected, mouth quadrate, columella simple. Long. 6, 

 Lat. 2. 



I have marked the difference between this and the preced- 

 ing species in italics. In addition it is a much smaller shell. 

 Table Cape. Common. 



TuREiTELLA STURTii. U.S. Shell Small, acutely pyramidal, 

 spirally granulosely ribbed ; ribs 7-8 in each whorl, three con- 

 spicuous and pi'ominent, the others intermediate, small non- 

 granulose, and of varying size. Whorls ten, constricted at the 

 suture which is deeply impressed. Base flattened with 7-8 

 spiral equal sized ribs, covered with numerous very fine 

 transverse striae ; mouth subquadrate, outer lip thin, inner 

 lip much reflected over the base, columella simple, and 

 slightly reflected at the base. The three prominent ribs on 

 the whorls are all granular, the larger two at the base of the 

 whorl, and the third above and separated by a wide interval 

 in which the smaller ribs occur. Granules on lowest prominent 

 rib separated from each other by oblique grooving, and below 

 this lib a deep channel above the suture ; apex always 

 decollated. Long. 12, lat. 4 mil. 



This fossil is of a type common enough in the genus, which 

 may be said to vary in individuals by the disposition of the 

 three prominent ribs. It has remote resemblance to some living 

 Australian species. Its small size and remarkable granula- 



h2 



