GREENSAND FOSSILS. 281 



cliff, where the two parallel layers of these con- 

 cretionary masses are within reach, (almost half a 

 mile to the east of Atherfield Point), will afford 

 specimens at all times. The large gryphea sinuata 

 (PL V. fig. 3), may be found everywhere along the 

 shore ; the shell being sufficiently strong to resist 

 for a time the action of the waves, clean and 

 perfect examples often occur imbedded in the 

 sand. Beneath Walpen High-cliff, and at Whale's 

 Chine, the gryphea bed may be examined in situ ; 

 the terebratula sella (PLY. fig. 5), maybe obtained 

 from the loose green sand (No. 6, p. 226), in great 

 perfection and variety. 



The magnificent cephalopodous shell, the Sca- 

 phites grandis, * (8. gigas of our Pl.V. fig. 11), is 

 most likely to be met with near the base of the 

 same part of the cliffs. Some fine specimens have 

 been found along the shore near Ladder Chine; 

 and very large ammonites and nautili occur in the 

 same locality. On the shore, not far from the 

 base of Blackgang Chine, nodules with scaphites 



* This shell has been described under different names, as Crioceras Bower- 

 banksii, Scaphites gigas, &c; the latter name is given in the description of 

 PI. V., but Professor E. Forbes has adopted that originally affixed to this 

 gigantic cephalopod by Mr. Sowerby. Scaphites are distinguished from 

 Ammonites by the disunion of the whorls, and from Hamites, by the spiral 

 arrangement of the posterior volutions. A very small species of Scaphite 

 (not exceeding an inch in length) is frequent in the chalk marl. See " Medals 

 of Creation," vol. ii. for an account of fossil Cephalopoda. 



