GASTEROPODA. 173 



1. BULLA LIGNARIA. Linn. Tab. XXI, fig. 8, a b. 



BULLA LIGNARIA. Linn. Syst. Nat. p. 1184, No. 379, 1766. 

 Donovan. Brit. Shell, t. 27, 1807. 

 Mont. Test. Brit. p. 205, 1803. 



SCAPHANDER LIGNARIUS. Montf. Conch. Syst. p. 334, 1810. 

 LIGNARIA. Leach. Moll. 1820. 

 LIGNARIUS. Loven. Ind. Moll. Scan. p. 10, 1846. 

 BULLA LIGNARIA. Brown. Illust. Brit. Conch, pi. 38, fig. 23-24, 1827. 

 Broc. Conch, foss. Subapenn. t. 2, p. 274. 



Dujardin. Mem. Soc. Geol. de France, torn. 11, pi. 2, p. 275, 1837. 

 Phil. En Moll. Sic. vol. ii, p. 95, 1844. 

 S. Wood. lUust. Mag. Nat. Hist. pi. 7, fig. 14, 1839. 

 Nyst. Coq. foss. de Belg. p. 452, pi. 39, fig. 5, 1844. 

 Enc. Method, pi. 359, fig. 3, A.B. 



_5. Testa ovatd, tenui, laxe convolutd, versus spiram attenuatd, transversim striatd, 

 spird truncatd, depressd ; labro arcuato ; sine umbilico. 



Shell ovate and thin, slightly convolute, rather contracted towards the spire, with 

 a large expanded aperture, ovate, rounded at the lower part ; transversely or spirally 

 striated upon the exterior ; striae distant, impressed ; vertex truncate, with a slightly 

 depressed spire. 



Axis, 1 inch. 



Locality. Cor. Crag, Sutton. 



Red Crag, Sutton. Recent, British Seas and Mediterranean. 



I have been able to obtain only a few specimens of this shell, which appears to be 

 identical with the well-known recent British species. M. Nyst, in the work above 

 referred to, has given as a synonyme, J2. lignaria, Deshayes (Coq. foss. des Env. de 

 Paris, pi. 5, f. 4-6), thereby considering this as an Eocene species. I am not 

 acquainted with the Paris basin-shell, but a species somewhat resembling this, from 

 Barton, in the cabinet of Mr. Edwards, and which I imagine to be the same, differs in 

 several particulars ; it is more elongate, less expanded, more closely and regularly 

 striated, with the striae -beautifully punctured, and is, I think, a distinct species, 

 probably Sulla Fortisii, Brongniart. 



2. BULLA CONULUS. Desk. Tab. XXI, fig. 2, a c. 



BULLA CONULUS. Desk. Coq. foss. des Env. de Par. p. 41, pi. 5, fig. 34-36, 1837. 

 Grat. Foss. de Bord. p. 51, pi. 3, fig. 4-5, 1838. 



ANGISTOMA(?). Grat. p. 52, fig. 6-7. 



OVULATA (?). Dubois. Foss. de Volhyn. p. 49, pi. 1, fig. 13-14, 1831. 



CONULUS. 8. Wood. Illust. in Mag. Nat. Hist. pi. 7, fig. 6, 1839. 



J3. Testa minutd, ovato-comcd, politd; transversim tenuissime striatd ; spird occultd ; 

 vertice infundibuliformi; aperturd superne angustissimd ; basi dilatatd ; columettd in/erne 

 obsolete uniplicatd. 



Shell small, ovato-conical, covered externally with fine and distant transverse striae 



