66 



AUKICULIDiE. 



Scarabus costulatus, Kiist. Auric, p. 67. t. 9. f. 13. 



Pythia costulata, Pfr. Syn. Auric, n. 83 ; Mon. Auric, p. 87. 



Hub. East Indies. 



18. Pythia axbovahicosa. 



_ Shell rimately umbilicated, oblong-conic, rather solid, smooth, 

 imperceptibly striated near the linear suture, rather uniformly 

 greenish chestnut-coloured ; spire conic, with the apex rather 

 blunt ; varices broadly bordered with white, and more narrowly 

 with blackish-brown ; whorls ten, flat, the last forming four- 

 sevenths of the total length, attenuated anteriorly, compressed 

 near the umbilicus, which is not perfectly open ;' aperture per- 

 pendicular, ovate, fulvous-whitish within ; parietal teeth two, 

 deep, the upper one conic, the other entering obliquely, gTooved 

 externally; columellar plait ascending rather obliquely; peri- 

 stome slightly reflexed ; right margin narrow on its upper part, 

 much dilated towards the base, bearing within five teeth, of 

 which the third and fifth are stronger ; columellar margin much 

 dilated, flexuous, spreading. Length 44, greatest breadth 23, 

 least breadth 18± mill. 



Pythia albovaricosa, Pfr. in Zeitschr. f. Maluk. 1853, p. 190; 



Syn. Auric, n. 84 ; Novit. Conch, i. 'p. 6. n. 10. t. 3. f. 1, 2 ; 



Mon. Auric, p. 87. 



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

 Hah. Celebes. 



19. Pythia chalcostoma. 



Shell umbilicated, elliptical, pyramidal, rather solid, slightly 

 striated with minute folds near the linear suture, rather shining 

 pale yellow, varied with reddish-brown paintings ; spire ele- 

 vately conic, attenuated towards the apex, which is acute; 

 varices broad, white; whorls thirteen, rather flat, the last a 

 little longer than the spire, indistinctly compressed near the 

 narrow umbilicus ; aperture rather oblique", ovate, fulvous-greyish ; 

 parietal teeth two, the upper one broadly triangular, divided, 

 the other large, compressed, shortly duplicated externally ; colu- 

 mellar plait square, ascending almost vertically; peristome 

 fulvous, reflexed, with the margins imited by a thin deposit; right 

 margin narrow and sinuated above, dilated at its lower part, 

 bearing within five teeth, the two first and the fourth of which 

 are minute, the third and fifth thick, rounded ; columellar margin 

 slightly thickened, spreading. Length 38, greatest breadth 19, 

 least breadth 15 mill. 



