COCHLOSTYLA-CORASIA. 109 



H. purchasi PFR., P. Z. S. 1858, p. 21, t. 40, f. 4; Mon. Hel. Viv. 

 v, p. 271. DOHRN in Conchyl. Cab., p. 590, t. 173, f. 7, 8. 



A thin, clear horn-colored species. 

 C. ROSSJTERI Angas. PL 21, fig. 26. 



Shell imperforate, globosely conical, very thin, obliquely irreg- 

 ularly plicately striated, with the interstices very finely transversely 

 striated, pale straw-color encircled with numerous narrow white 

 diaphanous bands, the one nearest the sutures the broadest ; spire 

 obtusely conoidal, somewhat flattened at the apex ; whorls four con- 

 vex, the last descending, acutely keeled at the periphery, rounded 

 at the base; columellar margin arcuate, 'narrowly excavated, sharp 

 .within ; aperture oblique, rhomboidal ; peristome not continuous, 

 white, with a purplish rose-colored spot at the periphery, and another 

 at the junction of the right margin with the body-whorl. Diam. 

 maj. 10, min. 8, alt. 7* lines. (Angas.} 



Ysabel Island, Solomon Group. 



H. rossiteri ANG., P. Z. S. 1869, p. 46, t. 2, f. 5. 



This species belongs to the same group as H. tricolor Pfr., and H. 

 purchasi Pfr. 



C. WISEMANI Brazier. Unfigured. 



Shell imperforated, globosely depressed, thin, obliquely finely 

 striated, shining, diaphanous, yellowish-white; obtuse at the apex; 

 whorls 3i, rather flat, rapidly increasing, the last very large, rounded 

 at the periphery, marked with faint opaque white lines running into 

 the suture, aperture oblique, ovately rounded, peristome reflected, 

 whitish-brown, margins joined with thin callus, the right curved 

 down, columellar margin rounded and broadly expanded, the upper 

 part of the peristome from the centre takes a peculiar bend inwards. 

 (J3raz.) Alt. 14, greater diam. 28, lesser 22 mill. 



Solomon Archipelago. 



H. (Corasia) Wisemani BRAZIER, Proc. Linn. Soc. N. S. Wales, 

 i, p. 3, 1876. 



Described from a single specimen, in the collection of Mr. Chas. 

 Coxen, of Brisbane. 



C. APHRODITE Pfeiffer. PI. 23, figs. 8, 9, 10, 11, 12. 



Shell imperforate, depressed, thin, acutely keeled at the periphery ; 

 translucent-whitish under a thin, pale straw-colored epidermis. 

 Surface shining, lightly striatulate and having very obsolete close 



