BY C. HEDLKY. 431 



Islands, which is smaller and more coarsely sculptured. Judging 

 from Roemer's figure, G. catillus is more compressed, oblique, 

 and finer sculptured than G. (equivoca Chemnitz. 



Chione lionota Smith. 



Venus (Chione) /iono^« Smith, Chall. Rep. Zool. xiii. 1885,p.l26, 

 PI. iii., f.7. Venus (Chiunfi) infans Smith, op. cit. p. 128, PI. iii., 

 f.3. 



This species, dredged in 5-10 fathoms, was one of the commonest 

 shells. I found it equally abundant, in 15 fathoms, off the Palm 

 Islands. Considerable variation in sculpture occurs. G. irifans 

 is a form in which extra radials are intercalated at an early 



stage. 



Chione scandularis, n.sp. 



(Plate xxxviii., figs.28-29.) 



Shell solid, ovately triangular, moderately inflated. Anterior 

 margin straight, posterior a little convex, ventral rounded but 

 slightly sinuate posteriorly. Colour dull white or pale yellow, 

 irregularly rayed or spotted with rusty brown. Sculpture: about 

 fifteen spaced concentric lamellae, which on a posterior ray become 

 more elevate and almost imbricate, elsewhere thick and low, cut 

 into beads by the passage of crowded radiating costellae which 

 increase by splitting to about thirty. Lunule and escutcheon 

 sharply defined, crossed by growth-lines only. Margin of the 

 valve within everywhere finely denticulate. Length 15; height 

 11; depth of single valve 4 mm. 



Among Australian species it may be compared with C. soabra 

 Hanley, from which its size and coarse sculpture separate it. It 

 was abundant off the Hope Islands. I had previously taken it, 

 in 15 fathoms, off the Palm Islands; and Mr. A. U. Henn 

 obtained it from anchor-mud, in 10| fathoms, off Cape Sidmouth. 



Tellina etesiaca, n.sp. 

 (Plate xxxviii., figs. 30-32.) 

 Shell minute, thin, diaphanous, glossy, triangular, compressed. 

 Posterior and dorsal margins straight, meeting in a right angle. 



