GARRETT: ON POLYNESIAN MITRID^. 47 



two examples only (living), which were dug out of sandy-mud 

 near low water mark in Sawa Sawa Bay. The general aspect 

 of the shell is somewhat like T. Michauii Crosse & Fischer, 

 but differs in color and details of sculpturing. 

 io8. Turricula fusco-nigra, sp. nov. 



T. nigricans Garr. M.S. 



Shell acuminately turreted, slender, somewhat fusiform, 

 base contracted, slightly produced into a slightly twisted 

 canal; dark brownish-black, with a whitish spiral line above; 

 whorls ID, flatly convex, somewhat roundly shouldered, 

 longitudinally ribbed, ribs small, rounded, narrower than 

 their interspaces, about 14 on each whorl; interstices with 

 large crowded transverse grooves; aperture less than half the 

 length of the shell, black or livid within; columella with four 

 plaits. 



Length 18 mill. (Mus. Godeffroy). 



Three dead examples found on the Kioa shore reefs, 

 Viti Islands. 

 109. Turrricula fortiplicata Pease. Amer. Jour. Conch., 

 1867, p. 213, pi. XV., fig. 3. 



Several examples found in beach sand at Anaa, 

 ^l Paimotu Islands. 



A small siiecies with stout plicate ribs, impressed strise 

 in the interspaces, and of a light chestnut color with the base 

 and apex whitish. 

 D. Turricula Gruneri Reeve. Conch. Icon., pi. xvi., fig. 119. 



A single example was picked up on the sands at Upolu, 

 Samoa Islands. It is also recorded from the Pelew group. 

 I. Turricula Hoyti sp. "ov. 



Shell oblong, fusiform, rather solid, shining, whitish, 

 mottled and striped with chestnut brown ; spire moderate, 

 with flattened outlines ; whorls 8, planulate, slightly shoul- 

 dered, last one large, convex, strongly constricted at the base, 



