si iROCEEDINGS OP THE ACADEMY Of [l88d. 



P. proximS,, iaobis. Plate IT, fig. 11. 



Shell dextral, thin, ovate, very elongate, spire half the length ; 

 whorls 5^, surface smooth, oblique lines of growth tine; spiral 

 strise obsolete, aperture ovate, oblique, umbilicus compressed ; 

 columella wide above, and slightly nodose, lip white and slightly 

 concave, margins of the peritreme connected by a thin callus ; 

 color white. Length 23, width 10 ; length of aperture 12, width 

 6 mill. 



Hab. Vanna Levu Island, Banks Islands, near the New 

 Hebrides. 



Obs. Capt. Brazier sent me two examples (weatherbeaten) col- 

 lected at the above island by himself in 1865 ; it has the outline 

 of eburnea, nobis, but is a smaller, thinner and more slender shell. 



f P. pyramis nobis. Plate II, fig. 12. 



Shell dextral, solid, perforate, spire elongate, acute, longer than 

 the aperture ; whorls 5^, rounded, suture well impressed, surface 

 smooth, obliquely striate, fine spiral striae almost obsolete, aper- 

 ture a wide oval, slightlj' oblique, lip white, moderately reflected 

 and flat, margins of the peritreme connected by a thin deposit ; 

 color pale yellow. Length 25, width 13; length of aperture 10, 

 width 5^ mill. 



Hab. Vate, Efate, or Sandwich Island, Neio Hebrides. 



Obs. I have three examples from Mr, Layard and Captain 

 Brazier. They are the size of Ilacgillivrayi, from Tanna, but 

 the spire is more elongate and acute, the whorls more rounded, 

 the sutures are deeper, and they want the dark band at the peri- 

 pher}^ of that species. 



P. Newcombianum, nobis. Plate II, fig, 13. 



Shell dextral, ovate, rather thin; spire acute, half the length ; 

 w'horls 5, rounded; suture deeply impressed ; body-whorl some- 

 what inflated ; oblique lines of growth fine and crossed by 

 numerous waved spiral strioe, compressly umbilicate ; aperture 

 very oblique, rounded, ovate; lip white, moderately reflected 

 and concave; the outer margin partaking of the color of the 

 epidermis ; columella wide above ; margins of the peritreme 

 connected by a thin vitreous deposit ; a broad, flat, pillar tooth 

 far within the aperture. Color light fawn, with dark brown 

 oblique striae, apex dark brown. Length 17 mill., diameter 

 ir5 mill. ; aperture, length 7 mill., width 4 mill. 



