NEWTON : GEOLOGICAL DISTRIBUTION OF NON-MARINE MOLLUSCA. 59 



As there is no scope for synonomy in a list of this kind, it has been 

 thought necessary to introduce the generic name under which a species 

 was originally described, in addition of course to that which is now 

 accepted ; this is indicated by a rounded bracket. 



The Bibliography which follows is intended to include only the 

 principal papers and works which have been consulted during the 

 preparation of the list. 



Finally, the author tenders his acknowledgments to his colleagues 

 at the British Museum, Mr. Edgar A. Smith, F.Z.S., and Mr. B. B. 

 Woodward, F.G.S., for some useful suggestions made to him whilst 

 collecting material for this work. 



BIBLIOGRAPHY. 



Baily, W. H. — Explanations of 147 and 157 of the Maps of the 

 Geological Survey of Ireland, 1861, p. i6 (woodcuts). 



Bean, W. — Description and figures of Unio distort us Bean and 

 Cypris concentrica Bean from the Upper Sandstone and Shale of 

 Scarborough. Loudon's Alag. Nat. Hist., 1836, p. 376, woodcut 53. 



Bell, R. G.— Land Shells in the Red Crag. Geological Magazine, 

 1884, p. 262. 



CoQUAND, H. — Description de quelques esp^ces nouvelles de 

 coquilles fossiles d^couvertes dans la Chaine du Jura. Mem. Soc. 

 Emul. Doubs (Besancon), 1856, vol. 7, pp. 45-50, pi. 5. 



Dawkins, W. B. — On the range of Anodonta jukesi. Trans. Man- 

 chester Geol. Soc, 1881, vol. 16, p. 247. 



Edwards, F. E. — Monograph of the Eocene MoUusca. Fal<eonto- 

 graphical Society, 1852. 



Etheridge, R., Junr. — The Palteozoic Conchology of Scotland. 

 Proc. Roy. Phys. Soc. Edinburgh, 1882, pp. 49, 50, and 53. 



Forbes, E. — On the Estuary Beds and the Oxford Clay at Loch 

 Staffin in Sk3'e. Quart. Journ. Geol. Soc, 185 1, vol. 7, pi. 5, 

 pp. 109-113- 



. — On the Fossils of the Yellow Sandstone of the South of 



Ireland, zand Report Brit. Assoc, for 1852, pub. 1853, p. 43. 



Gardner, J- S. — On the Land Mollusca of the Eocenes. Geol. 

 Mag., 1885, pi. 6, pp. 241-245. 



Hind, W.— On three new species of Lamellibranchiata from the 

 Carboniferous Rocks of Great Britain. Quart. Journ. Geol. Soc, 

 1899, vol. 55, p. 365, pi. 25. 



. — A Monograph on Carbonicola, Anthracomya, and Naia- 



dites. Palceontographical Society, 1894, 1895. 



. — On the Affinities of Anthracoptera and Anthraconiya. 



Quart, Journ. Geol. Soc, 1893, vol. 49, pis. 7-10, pp. 249-275. 



