130 CATALOGUE OF PHANEROPNEUMONA. 
10. Oropoma ListTERI. B. M. 
Shell globose-conical, thick, smooth, shining, flesh-coloured; spire 
conical, with the spire rather pointed, horn-coloured; whorls 5, 
convex, the last one angulated indistinctly, sometimes girdled 
with a single reddish-brown line below the middle, deeply spi- 
rally grooved beneath; aperture somewhat oblique, rather ovate, 
fulvous within ; peristome simple, straight, with distant margins, 
angularly joined by thin callus, columellar margin dilated and 
reflexed, sometimes altogether closing the very narrow um- 
bilicus. Height 13, greatest breadth 153, least br. 135 mill. 
Lister, Hist. t. 44, f. 42. 
Cyclostoma Listeri, Gray, in Ann. of Philos. 1821; Sow. in 
Proc. Z. S. 1843, p. 31; Thes. n. 20, p. 98, t. 23, f. 22, 23; Pfr. 
Ic. n. 95, p. 98, t. 12, f. 30, 31. | 
Cyclostoma fimbriata, Quoy & Gaim. Voy. Astrol. p. 188, t. 12, 
f. 31-35; Desh. Recueil, t. 29, f.12; Pfr. Ic. n. 198, n. 179, t. 30, 
f. 34, 35 (from Quoy); Chenu, lll. t. 1, f. 12. 
Cyclostoma Philippi, Grateloup, Act. Soc. Bord. xi. p. 446, t. 3, 
f. 21? 
Otopoma Listeri, Gray, Cat. Cycl. p. 36, n. 3; Pfr. Consp. n. 269 ; 
Pneum. Mon. p. 185. 
Hab. The island of Mauritius. 
11. OropoMA HEMASTOMUM. 
Shell conically-globular, solid, grayish-flesh-coloured ; spire coni- 
cal, with the apex rather pointed, fulvous; whorls 53, convex, 
crowdedly spirally furrowed, the three or four furrows near the 
suture being deeper than the rest, last whorl ventricose, angulated 
indistinctly, marked with one reddish line below the middle, 
more distantly and deeply grooved round the umbilicus, which 
is middle-sized and pervious; aperture roundish ovate, blood-red 
within; peristome simple, straight, with the margins angularly 
joined above, left margin somewhat dilated and thickened near 
the umbilicus. Height 14, greatest breadth 16, least br. 14 mill. 
Cyclostoma hemastoma, Anton. Verzeichn. p. 54, n. 1954. 
Cyclostoma hemastomum, Pfr. Jc. n. 16, p. 24, t. 3, f. 3, 4. 
Otopoma hemastomum, Gray, Cat. Cycl. p. 36, n. 6; Pfr. Consp. 
n. 270; Pneum. Mon. p. 186. 
Hab. Isle de France. 
12. Oropoma ? POLITUM. 
Shell perforate, conically-globose, rather thick, polished, chestnut- 
coloured, closely dropped with small fulvous or blueish-white 
speckles; spire conoidal, rather blunt; whorls 43, moderately 
convex, the last one pale anteriorly; aperture rather circular, 
pale within; peristome straight, blunt, with the margins angu- 
