198 



Aperture narrow ; outer lip ecurved medially and somewhat 

 deeply arcuately sinuated at the posterior angle. 



Dimensions. — Length, 34 ; greatest width, 16; length of aper- 

 ture, 28 ; of body-whorl, 30. 



Localities. — Blue clays at Schnapper Point, not uncommon ; 

 calciferous sandstones, Bird Rock Bluft", near Spring Creek. 



Affinities. — This species has much resemblance to C. ligatns, but 

 it is more elongate and has not the rim-like keel of that species. 

 A characteristic feature is the abrupt gradation of the anterior 

 whorls in the adult ; in adolescent specimens the regular sloping 

 low spire make it difficult at lirst sight to attach them to the 

 adult ; at this stage it resembles C. complicatns, but differs by its 

 ornamentation, and the young of C. cuspidatiis, from which it 

 differs by its obtuse pullus and by the strongly arched growth- 

 lines on the slightly concave spire-whorls. 



The elate variety closely resembles C. Huttoni, mihi (C. TrctiUii, 

 Hutton, non Adams), of the Pareora formation, New Zealand, 

 Avhich has a much narrower outline, more elongated spire, and a 

 more inclined jDOsterior slope of the whorls. 



7. Conus Ralphil, Teniso7i- Woods. 



Reference.— ?voc. Lin. Soc, N.S.W., vol. III., p. 228, t. 20, 

 fig. 4 (1878). 



Shell pyriformly oval, with a moderately elevated broadly 

 conical spire, ending in a small naticiform pullus of one and a- 

 half smooth whorls. 



Spire-whorls seven, plane or flatly convex, separated by a 

 slightly channelled suture, which is crenulated, or even nodulated, 

 at the posterior margin of the earlier whorls ; ornamented on the 

 posterior-half of each whorl with usually three conspicuous equi- 

 distant incised spiral lines. 



Body-whorl bluntly rounded, rarely subangulated, at the peri- 

 phery ; ornamented on the posterior slope with a few incised lines, 

 the rest of the surface varying from smooth to faint spirally- 

 linear-grooved, punctatedly impressed ; the base is usually spirally 

 wrinkled, but sometimes inconspicuously so. 



Aperture narrow, obliquely incurved at the posterior angle ; 

 outer lij) slightly ecurved medially. 



Dimensions. — Length 40 ; greatest width, 21 ; length of aper- 

 ture, 34 ; height of body-whorl, 35. 



Localities. — Very common at Muddy Creek ; rare in the cal- 

 ciferous sandstones of the River Murray Cliffs, near Morgan. 



The species varies slightly in the height of the spire and in the 

 proportion of the width to the leng-th, also the spire-whorls may 

 show a slight convexity and even a perceptible angulation at the 

 posterior margin of the suture ; rarely does the nodose crenulation 



