CANCELLAEIA. 67 



This is by no means a typical Cancellaria. M. Cossmann remarks 

 {op. cit. supra) that it should be classified with Bivetia ; but the 

 type of that subgenus has a posterior canal, varices, and other 

 characteristics absent in C. gradata. For the present it may 

 remain with Cancellaria proper, the present writer having no 

 inclination to increase the number of subgenera with which this 

 group is burdened. 



Dimensions. — Length 12 mm.; breadth 6-5 mm. ; length of 

 aperture 6 mm. 



Form, and Loc. — Eocene : Muddy Creek, Victoria. 



G. 4262. One specimen. Presented ly John Dennant, Esq. 



G. 9372. An adult example with well-preserved protoconch. 



Purchased. 



Cancellaria, sp. 



G. 5680. Two imperfect, rolled specimens ; from the post- 

 Pliocene beds of Limestone Creek, Glenelg river, Victoria. 



Purchased. 



Subgenus NARONA, H. and A. Adams. 

 [Genera Recent Moll. vol. i. 1854, p. 277.] 



Shell not umbilicated, oblong, costulated, or cancellated ; whorls 

 depressed near the suture ; columellar border with two oblique 

 plications. 



Type. — Cancellaria clavatula, Sowerby. 



Cancellaria (Narona) capillata, Tate. 



1889. Cancellaria capillata, Tate, Trans. Eoy. Soc. Soutli Aust. vol. xi. 



p. 158, pi. X. %. 10. 

 1889. Karona capillata, Cossmann, Ann. Geol. Univ. t. v. p. 1091. 

 1893. Cancellaria capillata, Tate and Dennant, Trans. Roy. Soc. South Aust. 



vol. -xvii. pt. 1, p. 221. 



Shell small, solid ; protoconch smooth, except anteriorly, where 

 it is longitudinally costated, composed of one and a half convex 

 turns, the earlier portion being somewhat oblique with reference 

 to the axis of the shell; whorls convex, lirate, and slenderly 



