1 6 GARRETT: ON POLYNESIAN MITRID^. 



half the length of the shell, and furnished with 5 columellar 

 plaits. 



Length 12 mill. (Mus. Godeffroy). 



Hab. Paimotu Islands. 



We found two perfect dead specimens of this very rare 

 Mitra on the sands at Anaa Island. 



It is closely allied to M. ancillides but may be distin- 

 guished by its ivory-white color, more contracted base, smaller 

 size and more robust form. 



24. Mitra fasciata Martyn. Reeve, Conch. Icon., pi. vi., fig. 40. 



Voliita casta, Solander, MS. 



This appears to be a somewhat rare species, and occurred 

 to our notice only at the Marquesas, Society and Cook's 

 Islands. They live in sandy-mud in the laminarian zone. 



Mr. Reeve is correct in stating that the broad brown 

 band is superficial. Weathered shells are uniform white. 

 The above author's figure, though very accurate, represents 

 a poor specimen. Fine examples have a sharply defined, 

 shining, deep brown-black zone. 



25. Mitra fusescens Pease. Mitra {^I'^olutomitra) fusescens 

 "Pease," I^aetel, Cat. Conch., p. 40. 



Strigatella fusescens, "Pse." Carpenter, Proc. Zool. Soc. 

 1865. 



I gathered a few examples of this species on the rocky 

 coasts of Hawaii, Sandwich Islands, where it appears to be 

 peculiar. 



It can scarcely be distinguished from M. Ticaonica, 

 except in being small and having a smoother peristome. 



26. Mitra flammea, Quoy et Gaimard, Voy. Astrol., vol. 2, 

 p. 659, pi. xlv., fig. 23-25, Alitra fiammigei-a, Reeve, Conch. 

 Icon., pi. xxii., fig. 173a, 173^. 



Common in the Viti Group, where I obtained many 



