Antediluvian Zoology and Botany. 23% 
(8 
Vnachus Lamarckz/, also from Denys 
locally called sea spider. Agrees with Des- 
marest’s fig. 15, pl. 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. pl. 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. 
Up UY Ps i 
> 
a, Calyméne variolaris, from Dudley limestone. b, Calyméne Blumenbachié, from Dudley. 
c, A’saphus Debtchzi, from Dynevoi Park, South Wales. 
On the subject of Trilobites M. A. Brongniart’s Histozre 
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. II. p.41.). <IR. 6. T 
U 4 
