506 FUNAFUTI ATOLL. 



CHAMA IMBRICATA, Broderip. 

 Broderip, Trans. Zool. Soc., 1835, p. 304, pi. xxxix., fig. 2; Lischke, 



Jap. Meeres Conch., ii., 1871, p. 126, pi. ix., fig. 4. 

 Chama foliacea, Quoy and Gaimard, Voy. "Astrolabe," Zool., iii., 

 1835, p. 478, pi. Ixxviii., fig. 19. 



Abundant at low water in the Funafuti lagoon, a mile south 

 of the village. 



The foliations on the opercular valve are in my specimens all 

 worn away, and for identification I have relied on the contour, 

 the dark purple stain on the upper interior margin, and the 

 absence of marginal crenulations. The C. foliacea, Q. & G., from 

 Vanikoro, appears to me to be identical. As Broderip's preliminary 

 description* did not appear till April 3rd, 1835,f I do not know 

 whether it was in London or in Paris that the species was first 

 published. 



Hugh Cuming brought the type from Marutea, Paumotus ; 

 Melvill and Standen note it from Lifu. An example from Anei- 

 teum, New Hebrides, is in this Museum. 



CHAMA SPINOSA, Broderip. 



Broderip, loc. cit., p. 306, pi. xxxviii., tigs. 8, 9. 

 Two specimens from the lagoon. 



If I have correctly identified this species, the upper valve must 

 have always been wrongly drawn. In a specimen before me, the 

 umbo is at a third of the diameter of the valve from the hinge, 

 and around it the valve has performed three spiral volutions. 



Found by Cuming at Marutea, Paumotus. 



CHAMA UNICORNIS, Bruguiere. 

 Clessin, Conch. Cab., Chama, 1888, p. 15, pi. ii., figs. 3, 4. 



With doubt I so identify, from insufficient figures and des- 

 cription, a specimen with two revolutions, 15 mm. long from 

 Funafuti. 



CORBULA TAIIEITENSIS, Lamarck. 

 Reeve, Conch. Icon., ii., Corbula, 1843, pi. ii., sp. 15. 



One of the most abundant shells on the lagoon beach, but I did 

 not meet with it alive. 



To the original locality of Tahiti, Smith adds that of New 

 Guinea. J 



GASTROCH^NA LAMELLOSA, Deshayes. 



Smith, Chall. Rep., Zool., xiii., 1885, p. 28, pi. vii., figs. 2, 2b. 

 Found alive, boring in coral blocks, in the lagoon. 



* Broderip Proc. Zool. Soc., 1834, p. 149. 

 t See Sclater Proc. Zool. Soc., 1894, p. 436. 

 I Smith Proc. Zool. Soc., 1891, p. 430. 



