64 AUEICULID^!. 



margin much thickened, perfectly adnate. Length 24, greatest 

 breadth 15, least breadth 11 mill. 



Pythia hepatica, Pfr. in Malak. Bl. iii. 1856, p. 174. 



Hab. ? 



13. Pythia nigricans. 



Shell imperforate, ovate-conic, solid, smooth, almost imper- 

 ceptibly striated near the suture, rather uniformly blackish ; spire 

 conic, with slightly convex outlines and the apex pointed; varices 

 blunt, with obsolete pale borders ; whorls nine, rather flat, the 

 last deeply descending, about as long as the spire ; aperture 

 slightly oblique, semiovate ; parietal teeth two, the upper arched, 

 the other simple, compressed, deeply entering ; columella! plait 

 tongue-shaped, oblique, produced externally to the margin; 

 peristome fulvous-livid, with the margins united by a thin callus; 

 right margin regularly arched, slightly reflexed, furnished within 

 with a callus, bearing six unequal teeth, of which the two upper 

 ones, the fourth and sixth, are smaller; columellar margin 

 thick, adnate. Length 21, greatest breadth 12|, least breadth 

 10 mill. 



Pythia nigricans, Pfr. in Malak. Bl. iii. 1856, p. 174. 

 Hab. ? 



14. Pythia abbreviata. 



Shell subglobose, depressed, with the spire short; whorls 

 folded only at their upper margin, and smooth in the remaining 

 part ; aperture very narrow, and angularly prolonged ante- 

 riorly, where the right and left margins are united ; plaits find 

 teeth much approximated; upper columellar plait bearing a 

 single tooth anteriorly ; on the right margin there are three 

 principal teeth, and three intermediate ones, which fomi a line, 

 not entering deeply. Colour dirty white, finely marbled with 

 brown; side of the right margin whitish, with chestnut- 

 coloured spots, forming on each side of the spire a stairlike 

 white line, which is bordered with brown. Length 9, breadth 

 6 lines (Blainv.). 



Scarabus abbreviatus, Blainv. in Diet. Sc. Nat. v. 48. p. 31. 

 Polydonta abbreviata, Beck, Ind. p. 101. n. 5 ? 

 Pythia abbreviata, Pfr. Man. Auric, p. 85. 

 Hab. Marion de Proce (a small isolated island of the Indian 

 Ocean). 



15. Pythia insularis. 



Shell subumbilicated, compressed, greyish -brown, with white 



