Additions to C<(t(do(jae of Shells. 85 



Obs. — Size of type: Height, 2; length, 1.85 mm. "Without 

 radial sculpture, but with about forty concentric ribs." Sides 

 triangular, ventral margin rounded. Equilateral. 



CuNA .vrKixsoNi, T. Woods. 



1877. Kellia atkinsoni, T. Woods. P.R.S.. Tas., for 1876, 

 p. 158. 



1901. Carditella atkinsoni, T. Woods. Tate and May, 



P.L.S., N.S.W.. vol. xxvi.. p. 435, pi. 27, f. 107. 



1902. Cuna atkinsoni, T. Woods. Hedley, Mem. Aust. 



Mus., vol. iv.. p. 315. 

 1908. Cuna atkinsoni, T. Woods. Verco, T.R.S., S.A., vol. 



xxxii.. p. 354. 

 1911. Cuna atkinsoni, T. Woods. Hedley, Zool.. Common- 

 wealth trawler " Endeavour," part I., p. 91. 

 Hab. — In about 40 fathoms, off Ninety Mile Beach. 

 Obs. — Size of type : Height, 3; width, 2 mm. A smooth shell. 



■Cuna particula, Hedley. 



1902. Cuna particula, Hedley. Mem. Aust. Mus., vol. iv., 

 p. 316, f. 56. 

 Hab. — Same as last-named species. 



Obs. — Size of type: Height, 2; width. 2.3 mm. Concentrically 

 sculptured; an oblique form. Inner ventral margin crenulated. 

 Compared by us with the type. Our specimens attain to twice the 

 .size. 



•Caudita cavatica, Hedley. 



1902. Cardita cavatica. Hedley. Mem. Aust. Mus., vol. 

 iv.. p. 318, f. 58. 

 Hab. — Same as last-named species. 



Obs. — Size of type : Length, 17; height, 14; depth of single valve, 

 •6 mm. We have compared our single valve with the type. 



"Cardita delicata, Verco. 



1908.— Venericardia delicata, Verco. T.R.S., S.A., vol. 

 xxxii.. p. 351, pi. 16, f. 18, 19. 

 Hab. — Same as last-named species. 



Obs. — Size of type: Antero-posterior. diam., 8.5; umbo-ventral, 

 7.2 mm. 



