M 



B. (A.) monndonta A. An., 'I 58, pi. 12">, f. : 



Conch. lorn. ),1. L>, f. 12. 



A. MIK\M>.\ Smith. Unfigni'"l. 



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 ahove, 

 rising little ahove 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. () 



Guff of Suez, 



A. mmtmla 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 strife 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 strife. Alt. 8, diam. 3-} mill. (Weink.). 



Piedmont Coast; Sicily; Algeria; Procencc. 



Ihdla ovulata Broc., JEFFREYS, Ann. Mag. N. H. (2), xvii, p. 

 188, pi. 2, f. 18, 19, 1856. Not P>. ondata Brocchi, Conch. Foss. 

 Subapp., 1814. Cylichna jeffreijsi WEINK., Journ. de Conch, xiv, 

 1866, p. 238 ; Conch, des Mittlm. ii, p. lW.llox<niie//<t j'freysi 

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



R. BROCCHII Michelotti. PI. 59, fig. 3 ; pi. 28, fig. 4.~>. 



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

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

 mella obsoletely uniplicate below (P/i/A). 



Alt. 5 lines, diam. slightly less than 2 (7>wWi/). 



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



Bulla ovulata BROCCHI, Cc.nch. Foss. Subapp. p. 277, pi. 1, f. 8 

 (not R. ovulata Lam., Ann. du Mus. 1801). A. AD., Thes. Conch. 

 ii, p. 586, pi. 125, f. 118. Piin.., Knurn. Moll. Sicil. i, p. 122. /;. 

 brocchii MICH., Foss. Mioc. de 1'It., p. ISI. Oytichna i>,-nn-hii 

 WKINK., Conch, des Mittelm. ii, p. 200. 



The figure on pi. 5!) is copied from the original illustration. Fig. 

 45 of pi. 28 is from Sowrrhy. See Weinkauff for references t. the 

 literature of the species. 



19 



