PERMIAN SYSTEM. 



FOSSILS OF THE PERMIAN GROUP. 



POLYPARIA. 



Tubuliclidia spinigera, Lorn. 

 FenesteUa anceps, Lons. 



flustracea, Fhil. sp. 



Fenestella ramosa, Lons. 



virgulacea, Phil. sp. 



Encrinus ramosus, Schlot. 



Crinoidea. 



Bkachiopoua. 



Terebratula elongata, Schlot. Spirifer cristatus, Schlot. 



sufflata, Schlot. Productus horridus, Sow. 

 Schlotheimii, fern. Morrisiantis, {Stropha- 



{Camerophoria,}im^.) losia,) King. 



Atrypa pectinifera, Sow. s]m\ienis,{Strophalosia) 



Spirifer undulatus, Sow. King. 



multiplicatus, Sow. LingiJa Mytiloides, Sow. 



Dimyakia. 



AUorisma elegans, King. 

 Schizodus obscurus, Sow. sp. 



paraJlelus, King. 



truncatus, Kinr/. 



rotundatns. Brown, sp. 



parvus. Brown, sp. 



undatus. Brown, sp. 



Schizodus pusUIus, Brown, sp. 

 minimus. Brown, sp, 

 Nucula vinti. King. 

 Area tumida. Sow. 

 Mytilus acuminatus. Sow. 

 septiferus. King. 

 Modiola costata, Vern. 



MONOMYAEIA. 



Avicula spelmicularia, Quenst. 

 keratophaga, Quenst. 

 antiqua, Munst. 

 inflata, Brown. 

 Binneyi, Brown. 



Avicula discors, Brotcn. 

 Gervillia ? tumida, King. 

 Pecten pusillus, Schlot. 

 Ostrea pusilla, King. 



