HELIX-CHLORITIS. 255 



H. GAIMARDI Deshayes. PL 52, figs. 69, 70, 71, 72, 73. 



Shell umbilicated, globose-depressed, rather solid, minutely granu- 

 lated, tawny; spire plane, subsunken in the middle. Whorls 4J, 

 convex, slowly widening, the last large, deflexed in front, a little 

 swollen at the suture, obsoletely subangulated in the middle, the 

 base distinctly angulated around the moderate-sized funnel-shaped 

 umbilicus. Aperture little-oblique, irregularly, broadly lunar ; 

 peristome white, narrowly reflexed, upper margin arched upward, 

 then flexuous, columellar margin sloping. 



Alt. 7$, greater diam. 15, lesser 12 J mill. (Pfr.) 



Port Carter et, New Ireland. 



H. gaimardi DH. in Guer. Mag. de Zool., 1831, t. 29; in Fer., 

 Histoire, t. 72, f. 6-9. PFR. Monogr. i, p. 387 ; iv, p. 294. H. 

 gaymardi DH. olim. H. adustus HINDS, Voyage of the Sulphur, 

 Zool., p. 55, t. 19, f. 11. REEVE, Conch. Icon. f. 451. 



H. MENDAN^: Cox. Unfyured. 



Shell with a deep open, perspective umbilicus, discoid, white, semi- 

 opaque, smooth and shining, finely transversely striated throughout 

 with lines of growth, ornamented with two narrow dark brown bands, 

 one immediately above, the other immediately below the periphery 

 of the last whorl, and continuous to the apex of the spire ; the last 

 whorl is subcarinated only for a short distance near the insertion of 

 the outer margin of the aperture ; spire convexly flattened ; whorls 

 6, gradually increasing in diameter, the last not depressed ; base con- 

 vex ; aperture oblique, irregularly subcircular, margins approaching, 

 joined by a thin brown callus ; lip slightly thickened and everted. 

 ( Cox.) 



Alt. 0-35, greater diam. 0'72, lesser 0*63 inch. 



Solomon Is. 



H. mendance Cox, P. Z. S. 1873, p. 148. 



A semiopaque, white, flattened species, with a conspicuously open 

 umbilicus, and ornamented with two narrow dark brown bands, one 

 above, the other below the periphery of the last whorl. ( Cox.) 



Systematic position doubtful. 



H. MAJUSCULA PfeifFer. PI. 48, figs. 4, 5, 6. 



Shell large, discoidal, flat or nearly so above, with a broad fun- 

 nel-shaped umbilicus beneath ; dark brown. 



It is solid, opaque, of a reddish-brown color, scarcely shining ; 

 surface smooth except for slight irregular growth-wrinkles and rude, 



