ae 
No. 
INTRODUCTION. 
NAMES OF SPECIES. 
mo 
Palliobranchiata. 
Lingula Credneri, Geinitz . 
Discina speluncaria, Schlotheim 
Productus horridus, J. Sowerby . 
— umbonillatus, King 
Strophalosia Goldfussi, Minster . 
— excayata, Geinitz 
— Morrisiana, King 
a parva, King : 
Streptorhynchus pelargonatus, Sena 
Camarophoria Schlotheimi, Von Buch 
— globulina, Phillips 
— multiplicata, King 
Trigonotreta cristata, Schlotheim . 
— multiplicata, J. de C. Senerty 
— Jonesiana, King 
— alata, Schlotheim . 
— undulata, J. de C. Sower ip 
— Permiana, King 
Martinia Clannyana, King . 
—  Winchiana, King . 
Cleiothyris pectinifera, J. de C. Seibert 
Epithyris elongata, Schlotheim 
—  sufilata, Schlotheim . 
Lamellibranchiata. 
Pecten pusillus, Schlotheim 
Lima Permiana, King 
Monotis speluncaria, Schlotheim 
—  radialis, Phillips 
— Garforthensis, King! 
Mytilus squamosus, J. de C. Sowerby? 
—  septifer, King® 
Edmondia Murchisoniana, King . 
Bakevellia ceratophaga, Schlotheim 
— antiqua, Miinster* . 
— tumida, King 
_ bicarinata, King 
XXIX 
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1 Probably belonging to the highest Permian deposits. 
? In Yorkshire, this species probably occurs in the highest 
Permian deposits. 
3 Vide postea, pp. 160, 161, 162. 
* In the Midland districts of England, this species probably 
occurs in the highest Permian deposits. 
