114 



LUSITANIAN PROVINCE. 



cause for the prevalence of the monstrous over the 

 normal form during two geological epochs. The 

 discovery, by Colonel James, of Turritella incras- 

 sata (a crag fossil) and a Spanish species, of a 

 southern form of Fusus, and of a mitra allied to 

 [probably identical with] a Spanish species in these 

 southern Irish beds, associated with the usual glacial 

 species, is an important fact, suggesting the proba- 

 bility of a communication southwards of the glacial 

 sea, with a sea inhabited by a fauna more southern 

 in character than that now existing in the neigh- 

 bourhood of the region where those relics were 

 found." 



I still stand by these opinions, after a full con- 

 sideration of the many objections, some weighty and 

 worthy of consideration, some frivolous and personal, 

 which have been offered to my theory, to this part 

 of it in particular, both at home and abroad. These 

 shall be answered fully in due time ; at present I 

 prefer occupying myself in fresh research to wasting 

 time in retrospective controversy. To that theory, 

 I, however, recall attention here, since the Gallician 

 discoveries of my indefatigable friend Mr. Mac An- 

 drew, go most importantly to support my views. 

 Let the peculiar distribution and presence of the 

 littoral mollusca, before mentioned, on the coast of 

 Gallicia, be explained (always bearing in mind my 

 premisses respecting the unity of species) by any 

 other view than that I advanced without the aid of 

 these fresh and important facts, if they can. 



