CRITICAL BIBLIOGRAPHY. 



23 



1856. S. P. Woodward in his ' Manual of the Mollusca ' placed the forms now 

 known as Carbonicola under Anthracosia (King) as a subgenus of Gardinia 

 (p. 470). He says these shells are associated with Nautili, Discinse, &c, but gives 

 no locality in which this association occurs. 



In the reprint 1880 there is an appendix by Ralph Tate, in which (p. 71) 

 Anthracosia and Carbonicola are placed as two distinct genera of the Uniouidse ; 

 he follows King and McCoy in the diagnosis of each genus. At p. 69 Anthra- 

 coptera is placed under the Mytilidge, and at p. 80 Anthracomya is placed under 

 the Myacidae, Salter's description being followed in the two latter genera. 



1855-9. In 1855 to 1859, d'Eichwald, in the ' Lethasa Rossica,' described and 

 figured — 



Modiolopsis conspicua. 

 ,, tenuissima. 



tenera. 



Cypricardia pumila. 

 Modiolopsis Teplofi, Verneuil. 

 Gardinia Eichwaldiana. 



All of these, except the last, from their shape appear to be Anthracomyge. 



On March 8th, 1858, Messrs. F. B. Shumard and Gr. C. Swallow read a paper, 

 " Descriptions of New Fossils from the Coal-measures of Missouri and Kansas," 

 published in 1858 in the ' Transactions of the Academy of Science of St. Louis,' 

 vol. i, p. 198, in which are described Mytilus Ottawaensis, Mytilus tenuiradiatus y 

 Myalina Kansasensis, and Myalina recta from the Coal-measures which agree very 

 closely in character with Naiadites. Mention is also made in the list, p. 177, of 

 Myalina subquadrata from Permian and Coal-measure beds of the Valley of 

 Verdigris. I am unable to find the description, but the shell is, however, figured 

 by Messrs. Meek and Hayden on p. 33 ot their ' Palaeontology of Upper Missouri,' 

 in which is also figured and described M. aviculoides, pt. 1, pi. ii, figs. 8 a — 8 d. 



1859-64. In 1859 R. Ludwig published in the ' Palaeontographica,' Band viii, 

 pp. 33 — 38, " Die Najaden der Rheinisch-Westphalischen Steinkohlenformation," 

 in which he figures and describes from that coal-field — 



Unto securiformis. 

 „ obtusus. 

 „ cymbieformis. 

 Anodonta lucida. 



„ Hardensteinensis . 

 „ brevis. 



cicatricosa. 



Anodonta procera. 

 ,, minima. 

 Gyrena (Cyclas) rostrata. 



„ „ anthracina. 



„ „ extenta. 



Dreissina laciniosa. 



In 1861, in another paper entitled " Siisswasserbewohner aus der Westphalis- 

 chen Steinkohlenformation " (' Palaeontographica,' Band viii, p. 182), he describes 



and figures — 



