312 
OMPHALOTROPIS §. 2. 
Operc. pallidum, extus concaviusculum. — Long. 6, diam. 4 
mill. Ap. 3 mill, longa, 2’/ 3 lata. (Coll. Nr. 235.) 
Cyclostoma plicosum (Omphalotropis) Pfr . in Proc. Zool. Soc. 9 Dec. 1851. 
— — Chemn. ed. II. N. 383. t. 46. f. 41. 42. 
Omphalotropis plicosa Pfr. Consp. N. 463. p. 71. 
Habitat . . . ? 
516 t4. O. exfmiii slal* Pfr. 
T. vix perforata, ovato-conica, tenuis, sublaevigata, parum 
nitida, pallide lutea, corneo minutissime variegata et fascia 1 
rufa infra medium (rarius 2) cincta; spira elevato - conica, 
apice acutiuscula; anfr. 6 vix convexi, ultimus medio et basi 
filo-carinatus ; apertura obliqua, ovalis; perist. undique subae- 
qualiter breviterque expansum, album, marginibus subdistan- 
tibus. — Operc.? — Long. 5 '/.^ ? diam. 3 mill. Ap. 2 mill, 
longa, iy 2 lata. (Coll. Nr. 236.) ^ 
Cyclostoma expansilabrc (Omphalotropis) Pfr. in Proc. Zool. Soc. 185J./J , 
— — Chemn . ed. II. N. 296. t. 39. f. 17 — 19. 
Omphalotropis expansilabris Pfr. Consp.- N. 464. p. 71. 
Habitat in fruticibus in interiore insulae Mauritii (Sir D. Barclay). 
XXIX. Bourciera Pfr. 
Operculum ovale, solidiusculum , corneum, anfractibus 
paucis rapide accrescentibus. Testa helicinaeformis ; columella 
basi dentata; apertura ovalis; peristoma expansum. 
Bourciera Pfr. in Zeitschr. f. Malak. 1851. p. 178; Consp. p. 49. 
Cyclostoma (spec.) Pfr. olim. 
Species unica: 
517 1. IS. Ifteliciiiaefoi'BiBis 1MV. 
T. obtecte umbilicata, conoideo-globosa, solidula, striatula, 
parum nitens, virenti-cornea ; spira parvula, conoidea, acutius- 
cula; anfr. 6 convexiusculi , ultimus inflatus, antice subascen- 
dens, pone columellam profunde excavatus, callosus; apertura 
subverticalis, angulato-ovalis ; columella subverticalis, retrorsum 
in dentem acutum desinens; perist. incrassatum, album, undi- 
