MONOGRAPH 



OF 



BRITISH CARBONIFEROUS BRACHIOPODA. 



Family— TEREBRATULID./E. 



Genus — Terebratula, Llhwyd. 

 (General Introduction, Vol. I, p. 62 ; and Part IV, article Terebratula.) 



The species belonging to this genus in the Carboniferous period are but few in number, 

 and, as far as we at present know, are characterised by the short, simple loop peculiar to 

 Terebratula proper. The ventral valve, it is true, possesses dental or rostral plates, 

 more developed than in the recent or Jurassic type, but this peculiarity does not appear 

 to constitute a character of sufficient importance for the creation of a separate genus; I 

 must therefore decline adopting the genus Seminula, M'Coy, for reasons already assigned. 



Terebratula hastata, Sowerby. Plate I, figs. 1 — 12. 



Terebratula hastata, J. de C. Sowerby. Min. Con., tab. 446, figs. 1, 2, 3, Jan., 1824. 



— — Fleming. Brit. Animals, p. 371, 1828. 



— Phillips. Geol. of Yorkshire, vol. ii, p. 221, pi. xii, fig. 1, 1836. 



— sacculus (part), Be Koninck. Anirnaux Fossiles de la Belgique, p. 293, 



pi. xx, figs. 3".', 1843. 

 Atrypa hastata, M'Coy. Synopsis of the Carb. Foss. of Ireland, p. 153, 1844. 



— virgoides, M'Coy. Ibid., p. 158, pi. xxii, fig. 21. 

 Semtnula hastata, M'Coy. British Palaeozoic Fossils, p. 409, 1855. 

 — virgoides, M'Coy. Ibid., p. 413, PI. 3 d, fig. 23. 



