THE MOLLUSCA 
OF 
THE “GREAT OOLITE OF YORKSHIRE.” 


CLAass—CrPpHALopopa.! 
BELEMNITES GIGANTEUS, Schloth. Plate XIV, figs. 4, 4a. 
BELEMNITES GIGANTEUS, Schloth. 1813. Min. Taschenb., vii, p. 70. 
— — Schloth. 1820. Petref., p. 45, No. 1. 
— ELLIPTICUS, Miller. 1823. Geol. Trans., 2d Series, ii, pl. 8, figs. 14—16-. 
? _— — Blainville. 1827. Mem. Belemn., p. 102. 
? — Giapius, Blainville. 1827. Mém. Belemn., p. 86, pl. 2, fig. 10. 
2 — coMprEssts, Sow. 1828. Min. Con., t. 590, fig. 4. 
— AaLENSIS, Voltz. 1830. Mem., p. 60, pl. iv, fig. 7. 
a aa Zieten. 1830. Pet. Wurtemb., pl. 19, fig. 1. 
— GRANDIS, Zieten. 1830. Pet. Wurtemb., pl. 20, fig. 1. 
2? _— compreEssvs, Phil. 1835. Geol. of Yorksh., vol. i, pl. 9, fig. 38. 
— AaLENSIS, Phil. 1835. Geol. of Yorksh., vol. i, p. 124. 
— GIGANTEUS, Quenstedt. 1843. Flézg. Wurtemb., p. 329. 
_— — D Orb. Ter. Jurrass., pl. 14, fig. 15. 
— —_— DOrb. Prod. Paléont., p. 261. 
B. Testé elongatd, compressd, crassd, acuminatd vel subinflatd, posticé acuminata, 
lateraliter sulcatd, anticé dilatatd ; aperturd subovali. Alveolo angulo, 20—25°. (D’Orb.) 
1 The following species of Mollusca are chiefly figured from the collection of Mr. Bean, and the 
localities are given upon the authority of that gentleman. They include all the species of univalves 
enumerated by Professor Phillips as occurring in the ‘‘Gray Limestone or Oolite of Cloughton, Brandsby, 
and Cave’’ (‘Geol. of Yorkshire,’ vol. i, p. 123, &c.); and most of the specimens illustrated in this 
Monograph appear to have been obtained from the Yorkshire coast. We have previously assigned our 
reason for keeping the fossils of this locality distinct from those of the West of England, and shall merely 
introduce the following general remarks by Prof. Phillips as bearing upon the subject. ‘‘ The distribution 
of the organic remains in the ‘road-stone,’ or slaty rock of Brandsby, Cave Oolite, and Inferior Oolite sand, 
has yet been carefully ascertained at only a few points; and the following observations will probably here- 
