Antediluvian Zoology and Botany. 



78 



287 



I'nachui' LamarckzV, also from Sheppy ; 

 locally called sea spider. Agrees with Ues- 

 marest's fig. 15. pi. ix. 



Under side of a crab from Sheppy; obscure. 



A crustaceous animal, of the size of a large shrimp, has been 

 observed, in a cast, amongst teeth and bones of fishes, in the 

 crag. Another, somewhat smaller than a shrimp, is men- 

 tioned, in the ferruginous sandstone of Atherfield, Isle of 

 Wight. The minute animal, figured as a bivalve in Mineral 

 Conchology under the name of Cypris faba, abounding in 

 the lamina of the Weald clay, has been recently affirmed to 

 be a crustaceous insect. Cirripedes, or Barnacles, are now 

 considered by Dr. Thompson to belong to the class Crustacea. 



Mr. Parkinson figures a small crustaceous animal, which is 

 frequently found with the Trilobite in the Dudley limestone. 

 {Org. Rem., vol. iii. pi. 17. fig. 19.) 



Trilobites, which are now properly arranged with the Crus- 

 tacea, are of several species, but their living analogues are 

 unknown. Mr. Weaver remarks, that one tuberculated trilo- 

 . bite seems characteristic of the limestone and slate clay of the 

 carboniferous series; occurring also in the Mendip Hills, 

 Caldy Island, Bristol, and Cork ; in the Isles of Man and 

 Anglesea, and Holy Island; in Kendal and Dumfriesshire. 

 A larger species occurs in the transition slate of France. 



79 



«, Calymfene variolaris, from Dudley limestone. b, Calymt-ne BlumenbJichM, from Dudley. 



c, A'saphus Debiichzi, from Dynevoi Park, South Wales. 



On the subject of Trilobites M. A. Brongniart's Histoire 

 Naturelle des Trilobites may be consulted. 



Several figures of Trilobites, from the Dudley and Barr 

 limestones with Mr.J.D.C. Sowerby's remarks, have appeared 

 in this work (Vol.11, p. 4-1.). R. C. T 



u 4- 



