48 



CARBONIFEROUS LAMELLIBRANCHIATA. 



' Annals of the New York Academy of Science,' vol. ii, No. 7, March, 1882, 

 entitled " Descriptions of New Species of Fossils from Ohio," &c., in which three 

 new forms (pp. 221, 222) are described (to be figured in Palasont., Ohio, vol. iii) : 



Pinna Maxvillensis. 

 Allorisma Andrewsi. 



Allorisma Maxvillensis. 



1883. Vol. vii of the 'Geological Survey of Illinois' appeared in 1883. It 

 contains woodcuts (pp. 318 and 321) of two and descriptions (p. 326) of other 

 Lamellibranchs from Carboniferous beds by Worthen : 



Chcenomya Maria. 

 Aviculopecten Varsoviensis. 



Pinna Sancti Ludovici, f descriptions 



Cypricardia ? Bandolphensis, ) only. 



1884. Vol. viii of the ' Monographs of the United States Geological Survey,' 

 issued in 1884, is entitled ' Palgeontology of the Eureka District,' by C. D. 

 Walcott. Out of forty-four species of Lamellibranchiata from Carboniferous strata 

 (pp. 225 — 254), thirty-seven are described as new. It is stated (p. 226) that " the 

 relations of the greater number of the species are with Devonian and Lower 

 Carboniferous species rather than with those of the Coal-measure Groups of the 

 Mississippi Valley." 



Aviculopecten Haugei. 



— Eurekensis. 



— peroccidens. 



— Pintoensis. 



— qffinis. 



— sp. ? 

 Strehlopteria similis. 

 Crenipecten Sallanus. 

 Perinopecten Hoosacensis. 



— Spio. 

 Pterinea Pintoensis. 

 Leptodesma, sp. ? 

 Ptychopteria protoformis. 

 Pinna inexpectans. 



— consiniilis. 

 Myalina conyeneris. 



— Nemensis. 



— Nessus. 

 ModioJa ? Nevadensis. 

 Modiomorpha ambiyua. 



Modiomorpha ? desiderata. 



— .'' Pintoensis. 

 Nucula insularis. 



— levatiformis. 

 Solenomya curta. 

 Macrodon Hamiltonpe, Hall. 

 Macrodon truncatus. 

 Grammysia Hannibalensis, Shumard, sp. 



— arcuata, Conrad, sp. 



Edmondia Medon. 



— .'' circular is. 

 PleuropJiorus Meeki. 

 Sanyuinolites JEolus (H. and W.). 



— retusus. 



— simplex. 



— Salteri. 



— ? JVxnia. 



— striatus. 

 Microdon (Cypricardia) connatus 

 C'ardiola ? filicostata. 



