BIVALVIA. 33 



8. PECTEN PUSIO, Pennant. Tab. VI, fig. 4, a c. 



Lister. Hist. Conch., lib. iii, par. 1, figs. 9, 18? and 23? 1/89. 

 PALLIOLUM? Chem. Conch. Cab., vii, p. 333, t. 67, figs. 635-6, 1784. 

 OSTREA MINIATA. Born. Mus. Cses. Vind., p. 104, t. vii, fig. 1, 1780. 



MULTISTRIATA. Poli. Test. Sicil., vol. ii, p. 164, t. 28, fig. 14, 1795. 



PUSIO. Don. Brit. Shells, vol. i, pi. 34, 17 ".-.'. 



SINUOSA. W. Wood. Ind. Test., p. 50, pi. 10, fig. 34, 1825. 

 PECTEN PUSIO. Penn. Brit. Zool., vol. iv, pi. 61, fig. 65. 



Turt. Brit. Biv., p. 215, pi. 17, fig. 2, 1822. 

 Payr. Cat. Moll, de File de Cors., p. 74, 1826. 

 G. B. Sowerby. Genera, No. 31, fig. 6. 

 Phil. En. Moll. Sic., vol. i, p. 84, and vol. ii, p. 58, 1844. 

 Forb. and Hani. Hist, of Brit. Moll., vol. ii, p. 278, pi. 50, figs. 4, 5 ; 

 pi. 51, fig. 7. 



DISTORTUS. Da Costa. Brit. Conch., p. 148, pi. 10, figs. 3, 6. 



Mont. Test. Brit., p. 148, and Sup., p. 61, 1808. 

 Loven. Ind. Moll. Scand., p. 30, 1846. 

 SINUOSUS. Turt. Brit. Biv., p. 210, pi. 9, fig. 5, 1822. 



Brown. Illust. Conch. Gr. Brit., pi. 32, fig. 2, 1827. 

 Forbes. Geol. Surv. of Gr. Brit., vol. i, p. 86, 1846. 



SPINOSUS. Brown. Illust. Conch. Gr. Brit., pi. 33., fig. 8, 1827. 



STRIATUS. /. Sowerby. Min. Conch., t. 394, figs. 2 4, 1823. 



Dujard. Mem. Soc. Geol. de France, t. ii, pi. 2, p. 270, No. 3, 1837. 

 Nyst. Coq. Foss. de Belg., p. 301, pi. 15, fig. 1, b, b', d, 1843. 

 SERRATUS. Dubois. Conch. Foss. de Wolhyn. Podol., p. 73, pi. 8, fig. 5, 1831. 



GLORIA MARIS? Id. - p. 72, pi. 8, figs. 6 & 19, 1831. 

 SQUAMULOSUS. Desk. Exped. Sci. de Morea, pi. 5, fig. 7 1 1, 1833. 



LIMATUS. Gold/. Pet. Germ., vol. ii, p. 59, pi. 94, fig. 6, a b. 

 Chenu. Conch. Illust. Pecten, pi. 49, fig. 5. 



ELONGATUS ? Goldf. Loc. cit., pi. 94, fig. 7, a c. 

 HINNITES PUSIO. G. B. Sow., Jr. Conch. Man., fig. 173. 



SINUOSUS. Desk. 2d ed. Lam., t. vii, p. 149, 1836. 



G. B. Sow., Jr. Thesaur. Conch., vol. i, p. 79, pi. 20, figs. 13, 1847. 

 IRREGULARIS. Desk. Ency. Meth. Vers., t. ii, p. 273, No. 1. 



Spec. Char. Testa orbiculato-ovatd, subaquivalvi, aguilaterali, radiatd, radiis confertis, 

 numerosis, 2 3 partitis, irregularibus, lavibus ant scabris ; auriculis intequalibi/s. 



Shell orbiculato-ovate, subequivalve, equilateral with numerous close-set rays, in 

 sets of two or three, irregularly scabrous, with very unequal auricles. 

 Longitudinal diameter, 2 inches; height, 2fths of an inch. 

 Locality. Cor. Crag, Sutton, Ramstiolt, and Sudbourn. 

 Red Crag, Sutton, Bawdsey, Walton Naze. 



Recent, Britain, Mediterranean, Bergen. 



This shell is abundant in both formations, and in the Coralline Crag at Ramsholt 

 the two valves are often united. In the young state, the Crag shell so much resembles 

 the recent specimens of the same size, that it cannot be considered otherwise than 



5 



