ATYS. 277 



B. {A.) monodonta A. Ad., Thes. p. 588, pi. 125, f. 123.— Sowb., 

 Conch. Icon. pi. 2, f. 12. 



A. MIRANDA Smith. Unfigiired. 



Shell elongate-ovate, pellucid, transversely delicately striated and 

 with irregular growth lines ; vertex depressed, perforated in the 

 middle, whence the outer lip rises. Aperture very narrow above, 

 rising little above the vertex, sensibly dilated and effuse toward the 

 base ; columella very short, arcuate, abruptly truncated (as in the 

 genus Achatina). Alt. 10, diam. 4 mill, (S.) 



Gulf of Suez. 



A. miranda E. A. S., Ann. Mag. N. H. (4), ix, p. 347. 



R. JEFFREYSI "Weinkauff. PI. 59, figs. 1, 2. 



The obese-cylindrical shell is truncated above and below, nar- 

 rowly umbilicated above ; under the lens fine strijie are visible on 

 the upper and lower parts, becoming indistinct in the middle. The 

 aperture is narrow, the margin projecting above, scarcely arcuate, 

 and very little dilated below ; columella but little thickened. The 

 shell is thin, translucent, yellow-greenish, smooth and covered with 

 very fine growth stride. Alt. 8, diam. 3* mill. ( Weink.). 



Piedmont Coast; Sicily; Algeria; Procence. 



Bulla ovulata Broc, Jep'freys, Ann. Mag. N. H. (2), xvii, p. 

 188, pi. 2, f. 18, 19, 1856. Not /;. ovulata Brocchi, Conch. Foss. 

 Subapp., 1814. — Cylichna jeffreijsiViEi'SK., Journ. de Conch, xiv, 

 1866, p. 238 ; Conch, des Mittlm. ii, p. 199. — Roxaniella j'^:ffreijsi 

 MoNTS., Nom. Gen. e Spec. p. 144. 



R. BROCCHii Michelotti. PI. 59, fig. 3 ; pi. 28, fig. 45. 



Shell cylindric-oblong, hyaline, sculptured with very tine spiral 

 striae, invisible to the naked eye ; apex obtuse, umbilicated ; colu- 

 mella obsoletely uuiplicate below (Phi/.). 



Alt. 5 lines, diam. slightly less than 2 (Brocchi'). 



Sicilian Coast (Phil.) ; Adria-Zara (Sandri) ; Algeria (Weink.). 



Bulla ovulata Brocchi, Conch. Foss. Subapp. p. 277, pi. 1, f. 8 

 (not B. ovulata Lam., Ann. du Mus. 1801). — A. Ad., Thes. Conch, 

 ii, p. 586, pi. 125, f. 118.— Phil., Enum. Moll. Sicil. i, p. V22.—B. 

 brocchii Mich., Foss. Mioc. de ITt., p. 151. — Cylichna hrocchii 

 Weink., Conch, des Mittelni. ii, p. 200. 



The figure on pi. 59 is copied from the original illustration. Fig. 

 45 of pi. 28 is from Sowerby. See Weinkauii' for references to the 

 palreontological literature of the species. 

 19 



