VANIKORO. 7 1 



Unfigured or Undetermined Species. 

 Y. TUBEROSISSIMA, Montagu. 



Y. GLABRISSIMA, Brown = GLABERRINA, ReclllZ. 



The above two species erroneously introduced into the British 

 catalogues are probably young West Indian shells, but indeter- 

 minable ; the latter probably a Neritina. 



Y. MAURITI^E, Recluz. A mere embryo. Mauritius. 



Y. OVOIDEA, Gould. = Isapis. 



Y. MONTROUZIERI, Souverb. New Caledonia. 



Y. APERTA, Carp. (Diam. 7*5 mill.) Gape St. Lucas, L. Gal 



Appendix to Natica. 



The following species are described, but not figured, by Roche- 

 brune, in Bull. Soc. Philom., Paris, 102-104, 1884-5. The last 

 is from Cape Horn, the others from Sta. Cruz, Patagonia. 



N. LEBRUNI, N. COUTEAUDI, N. OMOIA, N. SECUNDA, N. PATENT. 



