

124 



ORGANIC REMAINS. 



Hamites. 6. alternatus (Mantell) 



7- Beanii (Young and Bird) 

 8. plicatilis? (Mantell) 



9. Phillipsii (Bean MS.) 



fig. 26, 27. Speeton, also in gray marl, 



Sussex. 



fig. 28. Speeton. 

 fig. 29. Ditto, also in gray marl, 



Sussex. It grows to a 



large siae, 

 fig. 30. Speeton. 



ANNULOSA. 



Serpula 



Vermicularia Sowerbii (Mantell) 



PI. II. fig. 30. Speeton. 



fig. 29. Ditto, also in gray marl, 

 Sussex. Its whorls are 

 either dextral or sinistral. 



CRUSTACEA. 



Astacus.* 1. ornatus 



PI, III. fig. 2. 



2. claw of a large species 



3. 



Speeton. Each individual 

 lies in an oval nodule. 

 The legs appear to have 

 been very slender, but are 

 not well understood. 



Speeton. 



REMAINS OF FISHES AND REPTILES. 



Teeth and vertebrae of fishes ... PL II. fig. 51, 53. Speeton, 

 Teeth and vertebrae of saurian animals PI. II. fig. 52, 54. Ditto. 

 Jaw-bone and teeth of a reptile ... ... fig. 55. Ditto. 



Of seventy-one species contained in the above catalogue of Speeton 

 and Knapton fossils, one (a belemnite) appears to be also found in the 

 lower range of blue clay, which in Yorkshire corresponds to the Kimmer- 

 idge clay; four others occur in that stratum in Wiltshire and Dorsetshire; 

 one (gryphaea sinuata) in the lower green sand range of Kent ; twelve, or 

 perhaps thirteen, belong to the blue and gray marls of Kent and Sussex ; 

 and one (terebratula subundata) is also found in the chalk. The conclu- 

 sion to be drawn from this statement is, obviously, that the blue clay of 



