44 



CARBONIFEROUS LAMELLIBRANCHIATA. 



1876-86. A valuable series of papers by Mr. G. H. Morton appeared in vol. iii, 

 pp. 156, 299, and 371 o£ the ' Proceedings of the Liverpool Geological Society,' on 

 " The Carboniferous Limestone and Millstone-grit of North Wales." No new 

 forms of Carboniferous Lamellibranchiata are described, but the zonal distribution 

 of the fossils is most carefully recorded. A further paper on the Carboniferous 

 Limestone and Cefn-y-Fedw Sandstone of Flintshire is contained in vol. iv, pp. 297, 

 381 (1883), and v, p. 169, (1886), of the same ' Proceedings,' careful lists of fossils 

 being given for each bed described. 



1876. In the April number of the * Geological Magazine,' dec. 2, vol. iii, p. 150, 

 R. Etheridge, jun., gave in his "Notes on Carboniferous Mollusca," full accounts 

 and figures (pi. vi) of Aviculopecten iM'pijraceus, Sowerby, sp., Aviculopecten ? 

 sublobatns, Phillips, and some remarks on Aviculopecten planoradiatus, M'Coy. 



1876. Another paper by him, " Notes on Carboniferous Lamellibranchiata," 

 was published in the August number of the ' Annals and Magazine of Natural 

 History,' series 4, vol. xviii, p. 96, &c. The following species are described, those 

 marked with an asterisk being new, and figures are given (pi. iv) of those species 

 marked with a dagger : 



Aviculopecten suhconoideus* f 



— co?7af?<s, M'Coy ? 



Edmondia unioniformis , Phillips. f 

 Leda Tireqtcairii.* f 



Leptodomus fragilis, M'Coy.f 



— .'' elavatus.*f 

 MyaJina ? triffonalis.* t 

 Nucula Younqi.*f 



1877. In the ' Report of the United States Geological Explorations of the 40th 

 Parallel,' issued in 1877, vol. iv, part 1, Meek describes and figures Aviculopecten 

 Utahensis and A. occidaneus from Carboniferous strata. In part 2, Messrs. Hall 

 and Whitfield also describe and figure as new Aviculopecten Weherensis, A. 

 cnrtocardinalis, and A. parvulus, from Permo-Carboniferous beds. 



1877. In the June number of the ' Geological Magazine,' dec. 2, vol. iv, p. 241, 

 R. Etheridge, jun., gave "Further Contributions to British Carboniferous 

 Palseontology." 



Aviculopecten SowerUi and A. eUipticus are now stated to be the right and 

 left valves of one species, figures being given in proof of this view (pi. xii). A 

 new figure of A. papyraceus is also given to show a variety of surface ornamenta- 

 tion. Anthracomya Phillipsii is fully described and figured, and two new 

 species, Anthracomya Scotica and Sanguinolites ? Abdeneiisis, are figured and 

 described for the first time. 



1878. In the volume of the ' Proceedings of the Academy of Natural Sciences 

 of Philadelphia' for 1878, p. 35, C. A. White describes as new Astartella Gurleyi 

 from Carboniferous beds of Illinois, in a paper entitled " Descriptions of New 

 Species of Invertebrate Fossils from the Carboniferous and Upper Silurian Rocks 

 of Illinois and Indiana." 



