EXPLANATION 



FIVE PLATES OF LOWER GREEN SAND FOSSILS, 



TO ILLUSTRATE 



A REPORT BY PROFESSOR EDW. FORBES, 

 ON THE COLLECTION OF LOWER GREENSAND FOSSILS, 



IN THE MUSEUM OF THE GEOLOGICAL SOCIETY* 



Plate I. 



Fig. 1. Perna mulleti, exterior of upper 

 valve. 

 2. hinge, and interior of 



3,4. 



upper \alve. 

 stages of growth. 



Plate II. 



Fig. 1. Solecurtus Warburtoni. 



2. Tellina ? Vectiana. 



3- Pholadomya Martini. 



4. Venus Vectensis. 



5. Venus Orbigniana. 



6. Venus ? fenestrata. 



7. Lucina ? solidula. 



8. Cardium sphceroideum. 



9. Cardium Ibbetsoni. 

 1 0. Isocardia ? ornata. 



Plate III. 



1. Cypricardia undidata. 



2. Perna alaeformis. Young ind. 



3. Cardium [Itemicardium] ? Aus- 



teni. 



4. Nucula spathulala. 



5. Area exaltata 



6. Avicula ephemera. 



7. Avicula depressa. 



8. Avicula lanceolata. 



9. Gervillia lingidoides. 



10. Lima lingua. 



1 1. Lima expansa. 



12. Gryphaea harpa. Var, 



plicata. 



Plate IV. 



1. Tornatella marginata. 



2. Turbo? munitus. 



3. Solarium minimum. 



4. Scalaria ? sp. 



5. Rostellaria glabra. 



6. Pterocera Fittoni. 



la. Cerithium turriculatum. 



y semi- 



7b. 



8. 



9. 

 10. 

 11. 

 12. 



Var. j3 angustior, 



Cerithium Neocomiense. 

 Cerithium Clementinum. 

 Cerithium Lallierianum, 

 Cerithium attenuatum. 

 Cerithium Phillipsii. 



Plate V. 



Pleurotomaria Anstcdi. 

 Ammonites Deshayesii. 

 Ammonites Martini. 

 Ammonites Hambrovii. 



* The species printed in Italics have not before been figured or described. 



VOL. I. 



