198 PROCEEDINGS OF THE ACADEMY OF [March, 



species. P. ustulata, in the wide limits given by Tryon, 8 has a 

 somewhat extended range in the southwest Pacific, but it has 

 not before been reported from so far north as the Loo Choo group. 



LITTORINIDJE. 

 Echinella Cumingi var. luchuana nov. 



Shell similar to E. cumingi Phil, in having a circular, deep 

 umbilicus bounded by a white marginal rib; but narrower, with the 

 last whorl less depressed, the two peripheral series of tubercles 

 much less prominent, some coarse, subtuberculate cords revolving 

 between them, and also below the sutural series. Base more con- 

 vex, rfdth finer and not granose spira) striae below the subperi- 

 pheral series of granules. Flesh-colored, violet or bluish, the 

 tubercles whitish. Aperture orange-brown inside; dark brown 

 with the columella purple, in violet or bluish shells. 



Alt. 16, diam. 14 mm. 



Alt. 13, diam. 11 mm. 



Loo Choo Islands (Frederick Stearns, Y*. Hirase). 



This is the form I reported from the Loo Choo Islands in Catal. 

 Mar. Moll. Jap., p. 175. I have seen a great many specimens, 

 but none approach the real Cumingi of Polynesia. 



TURBONILLIDJE. 

 Turbonilla varicifera n. sp. 



Shell long and slender, white, composed of at least 15 whorls 

 (the nuclear portion broken off). Sculpture of close, rather stout 

 rounded ribs only very slightly sinuous or oblique, about 19 in 

 number on the last whorl (which ends with a broad varix), as 

 wide as or slightly wider than the intervals, and stopping abruptly 

 just below the periphery, the somewhat convex base very faintly 

 striated spirally. Scattered among the ribs there are a few stout, 

 wide, rounded varices, at intervals of several whorls. Aperture 

 small, subtrapezoidal, the columella straight and vertical. 



Length 11:8, diam. 2.6 mm. 



Hirado, Hizen (Mr. Y. Hirase). 



This rather large, many-whorled and varicose species differs 

 from T. varicosa in having the columella straight above, not 

 ' ' superne valde sinuata, ' ' as Dunker describes his species. 



3 Manual of Conchology, III, p. 84. 



