28 CARBONICOLA, ANTHRACOMYA, AND NATADITES, 
1862. Mr. Thos. Wardle, F.G.S., contributed a paper on “ The Geology of the 
Neighbourhood of Leek” to John Sleigh’s ‘ Ancient History of Leek,’ in which 
he gives lists of Anthracosia (Carbonicola), Anthracomya, and Anthracoptera 
(Naiadites) which occur in the beds of the North Staffordshire Coal-field, and on 
pl. iv figures two specimens of Carbonicola acuta, fig. 13, under the name of 
Anthracosia robusta. Fig. 14, as Anthracomya, resembles A, pumila. 
1862. In April of this year Mr. George Wild read his paper on “ The Fulledge 
Section of the Burnley Coal-field’ before the Manchester Geological Society, 
subsequently published in vol. iv, pp. 180, &c., of the ‘ Transactions.’ He gives 
accurate horizons for shell-bearing beds, but only mentions the specific names of 
two of them, Anthracosia robusta and A. acuta. 
1865. Huxley and Etheridge enumerate several species in their ‘ Catalogue of 
the Collection of Fossils in the Museum of Practical Geology,’ pp. 156—161, but 
mention no new forms nor give any descriptive details. 
1864-82. H. B. Geinitz remarks on the paper by Gitmbel, “Ueber das 
Vorkommen von Siisswasserconchylien am Irmelsberge bei Crock am Thiiringer- 
Wald,” in the ‘ Neues Jahrbuch f. Min.,’ &., 1864, p. 651, on the forms— 
Unio tellinarius, Gold., Unio crassidens, Ludwig, 
» Lhuringensis, Ludwig, » carbonaria, Gold, 
» wuniformis, Goldfuss, »  Goldfussiana, de Koninck, 
Anodonta phaseolina, ? Estheria, Anodonta ovalis, Martin, 
only inventing the doubtful form A. phaseolina. He criticises Ludwig’s species, 
and considers many of the named forms as synonymous. 
1882. Later again, in 1882, he published a new form from the Dyas, 
Anthracosia stegocephalum (‘ Nachtrige zur Dyas,’ Heft 2, 1882, p. 43, pl. vin, 
figs. 20, 21). . 
1865. Volpersdorf describes and figures a Modiola, sp., from Glatz County in 
beds with scales of Rhizodus Hibberti, in the ‘ Zeitschrift des Deutsch. Geol. Ges.,’ 
vol. xvii, 1865, p. 276, pl. vi, fig. 6, which is doubtless Anthracomya. 
1860. McChesney described Myalina Swallovi in his ‘New Species of 
Paleozoic Fossils,’ p. 57, issued in 1860, and with the illustrations to the same 
gives figures on pl. u, figs. 64,60: “I have not been able to obtain access to these 
papers, and quote the reference from Messrs. Meek and Worthen’s ‘ Geological 
Survey of Illinois (Palzontology),’ vol. 11, p. 341.” 
1860. In the ‘ Proceedings of the Academy of Natural Sciences of Phila- 
Nova Scotia,” by Sir William Dawson, was read before the Geol. Soc. London, in which he points out 
that some of the shells named by him Naiadites belong to the same genera as those subsequently named 
Anthracomya and Anthracoptera by Salter; and that consequently his name Nazadites has priority. 
He advances additional reasons for a fresh-water habitat of these shells. A note was appended by 
myself, in which I concurred in the substitution of the name Naiadites for Anthracoptera. 
