126 THE LIASSIC PERIODS. CHAP. 



Lima Hermann!. Voltz. L. Horfield, Abbotswood, Fenny-Compton. M. Alder- 

 ton, Dumbleton, Stow. 



Omaliusii. Geol. Swv. M. Nibley. 



ornata. Lycett. S. Nailsworth. 



pectinoides. Sow. L. Wilmcote, Bidford, Mickleton. 



punctata. Sow. L. Wilmcote, Defford. 

 Monotis decussata. Gold/. R. Westbury, Wilmcote. 



papyracea. . . . L. Rugby. 

 Ostrea irregularis. Geol. Surv. L. Down Hatherley. 



leeviuscula. Sow. L. Frethern, Cheltenham. 



liassica. Strick. L. Combe Hill, Brockeridge, Bidford. 

 Pecfcen sequivalvis. Sow. L. Mickleton. M. Dumbleton, Stinchcombe, Aston- 



le-Walls. 

 articulatus. Goldf. S. Frocester. 



cinctus. Sow. M. Cheltenham, Mickleton. 



cingulatus. Goldf. M. Stinchcombe, Dumbleton. 



comatus. Goldf. S. Nailsworth. 



,, dentatus. Sow. M. Rugby. 



paradoxus. Geol. Surv. M. Stinchcombe, Long Comptoii. 



,, Pradoanus . . . L. Fenny-Compton, Harbury. 



sublaevis. Phil. L. Cheltenham, Banbury, Mickleton. M. Bredon. 



textorius. Schl. L. Frethern, Cheltenham. M. Aston-le- Walls, Banbury. 

 S. Frocester. 



Thiolieri . . . L. Fenny-Compton. 



Valoniensis. Defr. R. Westbury. 



velatus. . . . L. Cheltenham. M. Dumbleton. 

 Perna rugosa. Goldf. S. Nailsworth. 

 Pinna fissa. Goldf. L. Cheltenham, Battledown. M. Stinchcombe. 



folium. Phil. L. Banbury. 



Hartmanni. Goldf. M. Bredon, Churchdown, Dumbleton, &c. 

 Plicatula sarcinula. Goldf. L. Vale of Gloucester. M. Stinchcombe. 



spinosa. Sow. L. Cheltenham, Fenny-Compton. M. Alderton 

 Dumbleton. 



Several of these genera have been already mentioned in catalogues 

 of earlier deposits; but Crenatula, Gervillia, Gryphsea, Ostrea, 

 Plicatula are conspicuous exceptions. What are here entitled 

 Monotis may as well be ranked with Avicula. The species of 

 Grypha3a are not sufficiently denned, but the form G. incurva Sow. 

 (arcuata Lam.) is usually the lowest and oldest of the group. G. gi- 

 gantea recurs in the oolite above. Ostrea liassica is found in the 

 lowest beds of the lias. There appear to be other species of Pecten, 

 according to Professor Buck man, in the lower and middle lias. 



FOSSILS OF THE LIASSIC PERIOD. 



CONCHIFERA. 



Dimyaria, 



Area Buckmanni. Rich. L. Battledown. 



