22 CARBONIFEROUS LAMELLIBRANCHIATA. 



The following shells are described and figured 



Avicula ohliqua. 



— Samuelsii. 

 Catillus Kirhmani. 



— Icevis. 



— costatus. 



— ohliquatus. 



— minutus. 



Catillus Kellyii. 

 Gervillia minor. 

 Modiola Moorei. 

 — minuta. 

 Cytherea antiqua. 

 Artemis parva. 

 Lucina duhia. 



In 1841 another work by Prof. John Phillips, entitled ' Figures and Descrip- 

 tions of the Palaeozoic Fossils of Cornwall, Devon, and West Somerset,' was 

 issued by the Geological Survey ; but the bulk of the book is on Devonian remains, 

 and I can only make out that three species of Posidonia — P. tuherculata, P. Becheri, 

 P. lateralis — and two doubtful forms referred to Sanguinolaria — S. sulcata and 

 S. subelliptlca — are from Carboniferous strata. 



In 1842 Agassiz published a translation of Sowerby's 'Mineral Conchology,' 

 but I have not been able to get access to a copy, and am not aware whether any 

 additions or alterations were made therein. 



In 1842 de Koninck published the first of his two important monographs on 

 the fauna of the Carboniferous period of Belgium, entitled ' Description des 

 Animaux Fossiles du Terrain Carbonifere de la Belgique.' He figures and de- 

 scribes eighty-one species of Lamellibranchiata, many of which were new, 

 belonging to sixteen genear. Reference appears to have been made to every 

 published work bearing on the subject, and several of the generic references of 

 previous authors are corrected. Fifty-one species and three genera are described 

 as new; the new genera being Myalina, Edmondia, and Cardiomorpha, all of 

 which are still retained. 



In 1842 Sir Richard Grifiith issued a " Notice respecting the Fossils of the 

 Mountain Limestone of Ireland, as compared with those of Great Britain, and 

 also with the Devonian System." The paper contains a brief account of the 

 lithological character of the beds included under the term Mountain Limestone, 

 and a table of the fossils showing the strata in which they occur in each of the 

 three Carboniferous Limestone districts of Ireland (Southern, Middle, and Northern 

 districts), contrasted with the occurrence of the same species in North Devon and 

 the British Mountain Limestone of England and Scotland. 



1842. D'Orbigny, in his 'Voyage dans I'Amerique Meridionale,' tom. iii, 

 4mepartie, 1842, described amongst others two new shells, Pecten Paredezii and 

 Trigonia antiqua from beds of Carboniferous age in Bolivia. 



In the same year John Morris published a ' Catalogue of British Fossils,' 

 enumerating all forms described from British strata to date. A second edition 

 appeared in 1854, with additions. 



