147 



4. Ancillaria hebera, Hiitton. Plate vii., fig. 5. 



Reference. — Catalogue Tertiary Moll, of N. Zealand, p. 6, 

 1873. 



Synonym. — A. mucronata, Johnston, Geol. Tasmania, t. 31, 

 f. 12, 1880. 



Shell rather thin, cylindrical; spire short, thick, and bluntly 

 rounded at the end ; the callosity of the spire broader than the 

 body-whorl, spirally constricted at the suture, coarsely granu- 

 lose. 



Dimensions (mean). — Length, 22*5 ; breadth, 9 "25 ; length of 

 aperture, 13-75. 



Locatities. — Calciferous sandstones of the River Murray Cliffs 

 near Morgan ; lower beds at Muddy Creek ; Table Cape 

 (Johnston I); also in the Oamaru and Pareora systems in New 

 Zealand. 



The identification of the Australian specimens results from a 

 comparison with an authentic example from New Zealand. 



This species comes nearest to A. olimda, of the Paris basin, but 

 the callosity is larger, gibbous, and granulated in our fossil. 



5. Ancillaria subampliata, spec. nov. Plate vii , fig. 3. 



Shell thin, fusiformly oblong, rather narrow, with an acumin- 

 ate, subturreted spire, ending obtusely in a moderately large 

 pullus of three smooth slightly convex whorls ; callosity of spire 

 spirally striated. 



Body-whorl sculptured with revolving and longitudinal stria? ; 

 basal grooves wanting. 



Aperture inflated anteriorly ; columella hardly twisted, vvith 

 slender plaits. 



Dimensions. — Length, 34; breadth, 13; length of aperture, 24. 



Locality. — Lower beds at Muddy Creek (J. Dennant). 



This species has the form of A. ampla, Gmelin, but the spire is 

 different in outline, and the surface of the body whorl is sculp- 

 tured. 



6. Ancillaria lanceolata, spec. nov. Plate vii., fig. 2. 



Shell moderately stout, narrow, cylindrical ; spire pyramidal, 

 acuminately contracted at the apex, thickly covered with a 

 coarsely granulated enamel. Somewhat intermediate between 

 A. hehera and A. j)seud-a%istralis. 



Dimensions (mean). — Length, 33-5 ; breadth, 10-75 ; length of 

 aperture, 19-5. 



Locality. — Lower beds at Muddy Creek. 



7. Ancillaria ligata, spec. nov. Plate vii., fig. 6. 

 Shell small, oblong-cylindrical ; spire sub-cylindrical, l^Iunt, 

 covered with a thin enamel ; constricted at the suture and 



