PLACOSTYLUS, NEW CALEDONIA. 61 



Bulimus caledonicus PETIT, Revue Zoologique, 1845, p. 53. PFR., 

 Monogr. ii, 140; iii, 378 ; iv, 447 ; vi, 83. REEVE, Conch. Icon., 

 pi. 25, f. 163. PHILIPPI, Abbild. u. Beschreib., iii, p. 95, Bui. pi. 

 9, f. 2. DESHAYES in Fer., Hist., p. 117, pi. 138, f. 3, 4. GASSIES, 

 Journ. de Conchyl., 1857, p. 273 ; Faune i, p. 44, pi. 5, f. 3 ; ii, p. 



77. MARIE, J. de C., 1870, p. 382 CROSSE, J. de C., 1864, p. 



121. Placostylus caledonicus H. & A. AD., Gen. Rec. Moll., ii, p. 

 153 TAPPARONE-CANEFRI, Viag. " Magenta," p. 85. BRAZIER, 

 Proc. Linn, Soc. N. S. Wales, v, p. 190 (1881), with var. edentula. 



KOBELT, Conch. Cab., p. 24, pi. 6, f. 1, 2 CROSSE, J. de C. 



1894, p. 280. HEDLEY, Proc. Linn. Soc. N. 8. Wales, xxiii, 1898, 

 p. 104. 



P. pseudocaledonicus resembles this species, but it has no parietal 

 tooth, the sinus of the lip is less deep, and neither the outer lip nor 

 columella bear such heavy callosities. The color of P. caledonicus 

 varies extremely. 



Var. edentula Brazier. Wants the parietal tooth ; peristome much 

 thicker, and slightly reflected, a broad sinus above, aperture con- 

 tracted in the middle. Columella, lip and interior of aperture bright 

 dark red. 



Coumac or Kumac, west coast of New Caledonia, in the Tiebagi 

 mountain ranges. (Rossiter.) 



P. POYENSIS Kobelt. PL 30, figs. 43, 44. 



Shell imperforate, ovate-conic, compressed ; solid, ponderous ; 

 irregularly plicate-striate, the last whorl marked with very fine waved 

 spiral lines, visible under the lens, and here and there malleated and 

 scarred; buff-whitish, covered with a chestnut-greenish epidermis, 

 nearly uniform on the last whorl but streaked with darker on the 

 penultimate. Whorls 7, suture white-edged, the penultimate whorl 

 distinctly obliquely rugulate, the last compressed, somewhat gibbous 

 on the left side, tapering at base. 



Aperture vertical, brownish inside ; peristome slightly expanded, 

 doubly or triply thickened with a white, porcellanous callus ; parietal 

 callus toothless, brownish internally, rose-whitish outwardly; outer 

 lip broadly sinuated above, then with a somewhat projecting tooth, 

 and more thickened. Columella with a prominently truncated fold, 

 twisted above, and interiorly peculiarly flatly-excavated and entering. 

 Length 78, diam. 44. apert. 48 mill. 



Poya, west coast of New Caledonia (Layard). 



