AUUICULIDJE. 67 



Scarabus chalcostomus, A. Adams in Proc. Zool. Soc. 1850, 



p. 152 ; Ann. § liar/. IV. H. 2 ser. viii. p. 70. 

 Pythia chalcostoma, Pfr. Syn. Auric, n. 85 ; Mon. Auric, p. 87. 



H. and A. Adams, Gen. rec. 3Ioll. ii. p. 240. 

 Hah. Salomon's Islands (D' Urville). 



20. Pythia ovata. 



Shell deeply rimate or openly umbilicated, compressedly 

 ovate, acuminate, rather solid, slightly striated, pale, shadowed 

 with livid spots and marbled with chestnut-coloured paintings ; 

 spire conic, with somewhat convex outlines, and the apex 

 pointed; varices white, with an adjacent blackish -brown spot 

 of the same breadth, which does not reach the suture ; whorls 

 ten, rather flat, descending anteriorly, arcuately folded near the 

 suture, the last a little longer than the spire, slightly compressed 

 at base ; aperture perpendicular, whitish within ; parietal teeth 

 two, the upper triangular, with two branches, the other strong, 

 simple, descending obliquely ; columellar plait compressed, ob- 

 lique ; peristome pale livid, with the margins united by a thin, 

 shining deposit ; right margin rather simple above, then thick- 

 ened, reflexed, furnished within with a white callus, bearing 

 five unequal teeth ; columellar margin much dilated, spreading. 

 Length 31, greatest breadth 26, least breadth 23± mill. 



Pythia ovata, Pfr. in Proc. Zool. Soc. 1854, p. 299 ; 3Ion. Auric. 

 p. 88. 



H. and A. Adams, Gen. rec. Moll. ii. p. 240. 

 Hub. ? 



21. Pythia Celebensis. 



Shell narrowly umbilicate, ovate-conic, solid, striated irregu- 

 larly, rather uniformly dark fulvous ; spire conic, with the apex 

 pointed ; varices fulvous-yellow; whorls ten, rather flat, descend- 

 ing anteriorly, with strong arched folds near the suture, last 

 whorl about as loup: as the spire, slightly compressed at base ; 

 aperture rather oblique, of a livid flesh-colour and shining 

 within ; parietal teeth two, the upper rather trigonal, the other 

 strong, compressed, somewhat oblique ; columellar plait small, 

 rather tooth-shaped, ascending arcuately; peristome bordered 

 with livid, with the margins united by an extremely thin de- 

 posit; right margin rather simple above, then narrowly ex- 

 panded and somewhat reflexed, furnished within with abroad 

 flesh-coloured callus bearing Ave unequal teeth; columellar 

 margin thick, sinuate, spreading. Length 33, greatest breadth 

 18, least breadth 15 mill. 



