MOIJA'SCA — iiicm.icv. 



315 



CUNA CONCENTRIC A, sp. nov. 



(Fi-. 5;-).) 

 Station 49. 

 Shell subtrigoiial, 0([inlator;il, \ory short, ratlier flat, glossy, 



white. Without radial sculpture, 

 but with about forty concentric 

 ribs of width equal to their inter- 

 stices. Dorsal margins nearly 

 straight,, ventral margin rounded, 

 inner ventral margin set with 

 about twenty square interlocking 

 knobs. Height, 2- mm. ; length, 

 1-85 mm. 



Numerous separate and a few 

 conjoined valves from off Port 

 Kembla in 63-75 fathoms. 



Cl7NA CONCENTRICA. 



Fig. 55. 



CUNA ATKINSONI, Ten. Woods, sp. 



Kellia atkinsoni, Ten. "Woods, Proc. Roy. Soc. Tas. for 1876 (1877), 

 p. 158; Carditella atkinsoni, Tate and Mav. Proc. Linn. Soc. 

 N.S.W., xxvi., 1901, p. 435, pi. xxvii. f. 107. 



Station 49. 



Three odd valves from off Port Kembla in 63-75 fathoms. 

 S 



