496 



FUNAFUTI ATOLL. 



the rays are crowded small transverse lunate gemmules. Lunule 

 sharply impressed, narrow, lanceolate. Ligament large, external. 



Pig. 50. 



Hinge line short, straight, remainder of the margin evenly rounded. 

 Internal margin sharply, finely crenulated. Length 1 4, breadth 12, 

 diameter of conjoined valves 8 mm. 



One entire shell, described 

 above, was taken by Mr. G. 

 Sweet; and a single, worn, 

 slightly larger valve, by my- 

 self at Funafuti. 



This species seems nearest 

 to C. dilecta, Smith, but is 

 distinguished from that and 

 other members of the genus by 

 more numerous ribs bearing 

 Pig. 50. closer packed grains. 



The specific name is in compliment to Mr. G. Sweet, the finder, 

 who was a member of the second expedition to Funafuti. 



The side view is drawn to a smaller scale than the other sketches. 



LUCINA EXASPERATA, Reeve. 

 Reeve, Conch. Icon., vi., 1850, Lucina, pi. i., sp. 4. 



A few specimens from the lagoon. 



Melvill and Standen notice this from Lifu. It is in this 

 Museum from New Caledonia. 



LUCINA PUNCTATA, Linne. 



Pfeiffer, Conch. Cab., Veneracea, 1869, p. 262, pi. xix., figs. 8, 9. 

 One specimen from the lagoon beach. 



