BY C. HEDLEY. 169 



the base, deep, cup-shaped, margin rounded. Aperture slightly 

 oblique, roundly lunate, peristome straight, sharp, projecting at 

 the periphery, scarcely reflexed on the columellar margin. Callus 

 projecting, bluish-white, thin, just burying the costse of the pre- 

 ceding whorl. Diam. maj. 2, min. 1|, alt. |mm. 



Type in the collection of C. E. Beddome, Esq., R.N. 



Hab, — From Gad's Hill to Mt. Bischoff, Tasmania (Beddome) ; 

 occurred in and under decayed timber. 



EXPLANATION OF PLATES. 



Plate 



Figs. 1-3. — Lateral, superior, and inferior aspects of the shell of C. 



hiichoffensis, Beddome. Magnified. 

 Pig. 4. — Sculpture of the same. Much magnified. 

 Pigs. 5-7. — Lateral, superior, and inferior aspects of the shell of G. antialba, 



Beddome. Magnified. 

 Fig. 8. — Sculpture of the same. Much magnified. 



Plate ii. 



Figs. 1-3. — Lateral, superior, and inferior aspects of the shell of O. gadensis, 



Beddome. Magnified. 

 Fig. 4. — Sculpture of the same. Much magnified. 

 Figs. 5-7. — Lateral, superior, and inferior aspects of the shell of C. 



albaiieims, Cox. Magnified. 

 Fig. 8. — Sculpture of the same. Much magnified. 



