GARRETT: ON POLYNESIAN MITRID^E. 39 



Hab. Samoa and Panmotu Islands. 



A somewhat rare and beautiful species found beneath 

 dead coral on the outer reefs. It belongs to the same group 

 or section as T. exquisita and differs from that species in its 

 larger size, fewer ribs, more distant transverse grooves and 

 wants the sharp spiral brown lines. 



89. Turricula Cumingii Reeve. Conch. Icon., pi. x., fig. 67. 



This is one of the rarest and most beautiful of the South 



Sea Mitres. We were fortunate in taking a large and very 



perfect example on the outer reef at Makimo, one of the 



Panmotu Islands ; also a single and very much worn specimen 



i was picked up on the beach at Upolo, Samoa Islands. 



Mr. Reeve's poor figure gives no idea of the beauty of 

 ^*y| this shell. Our Paiimotu example, which is larger than the 

 '■ above-mentioned figure, is a rich shining orange-red, mottled 

 with pure white, and the transverse grooves on the orange- 

 red ground are lineated with chocolate-brown. The aperture 

 is the same, but darker than the ground color. The whorls 

 are crenulated next to the suture, and the grooves gradually 

 become obsolete towards the apex. 



90. Turricula cadaverosa Reeve, 1. c, pi. xxL, fig. 160. 



Very abundant, buried in sand in the upper region of 

 the laminarian zone, inside the reefs at the Society, rare at 

 the Panmotu, Samoa and Viti Islands. 



Mr. Reeve, on the authority of Cuming, 'frequently 

 gives the station of the sand Mitres ^'' under stones," where 

 they are never found except when dragged there by hermit 

 crabs. 



Reeve's figure of this species, which very correctly 

 represents the sculpture, is too robust to accord with the 

 usual form. They are subject to considerable variation in 

 the size and number of the ribs, and in the distinctness of 

 the two angles on the body whorl, as well as in the size of the 



