BIBLIOGRAPHICAL SKETCH. 



27 



LitTiodomus Jenlcinsoni. 

 Solemya primieva. 

 Sanguinolites sulcarinatus. 



— (Leptodomus) costellatus. 



— variabilis. 



— iridinoides. 



— clava. 

 Edmondia rudis. 



— scalaris. 



— ohJonna. 



Aviculopecteii segregatus. 



— concavus. 



— cancellatulus . 



— Euthveni. 



— codatus. 



— docens. 



— planoradiatus. 

 Finna spatula. 



— flexicostata. 

 Pteronites persulcatus. 



1853. In a paper " On some New Molluscs in the Carboniferous Slates of the 

 Anthracite Seams of the Wilkestarre Coal Formation," published in the ' Journal 

 of the Academy of Natural Sciences of Philadelphia,' vol. ii, pi. iii, January, 1853^ 



Isaac Lea described and figured : 



Modiola WiJomenqensis\ „ „ .,. 



^J: ^ \? Naidites. 



— Minor J 



Posidinia ? Cluthiata. 



— perstuat. 



— distans. 



In the *' Dritter Band " of Dunker and von Meyers' ' Palseontographica,' dated 

 1854, are two papers by Friedrich Adolph Roemer under the title " Beitrage zur 

 geologischen Kenntniss des nordweslichen Harzgebirges," the first of which is 

 indexed as being contained in " erste Lieferung," September, 1850 ; the second in 

 the " zweite Lieferung," August, 1852. 



A table is given in the second paper of the fossils of the Ibergerkalk, Goniati- 

 tenkalk, and Cypridenen Schiefer, and the Kulm, in which are the names of 

 twenty-eight species belonging to twelve genera of Lamellibranchiata, twelve of 

 which species are said to be new, but several of the other names are not set down 

 to any author. 



The following tabular list of genera and species is given on pp. 106, 107, 

 which, however, does not quite correspond with the species mentioned in 

 the text. 



