258 Mr. De laBeche on the Geographical Distribution of Organic 



ration, formed from the writings of Professor Buckland*, Dr. 

 Fittonf, and M. Adolphe Brongniart :{:. 



Didelphis. 



Pterodactyhis. 



Megalosaurus Bucklandi. 



Tortoise scales. 



Crocodile scales, teeth, and bones. 



Fish teeth and palates. 



Ichthyodorulites. 



Insects. 



Veget.able Remains. 

 Fucoides fiircatus. 

 Sphenopteris hymenophylloides. 



— ^— ? niacrophyila. 



Taeniopteris latifolia. 

 Zamia pectinata. 



patens. 



Thuytes divaricata. 



expansa. 



acutifolia. 



cupressiformis. 



Taxites podocarpoides. 



another handed and ribbed ; both 

 presers-ing their colour. 



Turritella ? 



Another spiral univalve. 



Astarte. 



Avicula ovata. 



Gnphsa. 2 species ; one of small 

 size, another large. 



Lima rudis. 



Mcdiola imbricata. 



aliformis. 



, another species. 



Mytilus. 



Obtrea ; a plicated species, and pro- 

 bably another. 



Vecten Jibrosus. 



obsctirus. 



Pholadomya acuticostata. 



Pinna. 



Plagiostonia; nearest to cardiiforme. 



Terebratula obsolela. 



maxillata. 



Trigonia inipressa. 



Shells. 

 Nerita. 2 species ; one banded 



Of the 10 known species of fossil shells here enumerated, 

 3 are found in the Yorkshire great oolite, and 1 in the corn- 

 brash of the same county ; 1 occurs in the great oolite of 

 Calvados ; 1 in the cornbrash and forest mai'ble of the North 

 of France; and 2 in the Mauriac beds. South of France. The 

 Plagiostoma cardiiforme, which one of the above shells is stated 

 to approach, is found in the great oolite of Yorkshire, and in 

 the cornbrash and forest marble of the North of France. 



M. Dufrenoy presents us with the following list of organic 

 remains found in the beds between the Pointe Duche, and the 

 Pointe d'Angoulin. M. Dufrenoy seems inclined to refer the 

 beds to the middle oolitic system; but their organic contents will 

 do equally well, if not better, for that now under consideration. 



Isocardia concentrica (Sow.). 

 Cardita obtusa (Sow.). 

 Terebratula triquetra (Sow.). 

 . ornithocephala. 



■ acuta (Sow.). 

 Lima antiqua (Sow.). 

 Actaeon cuspidatus (Sow.). 

 Encrinites pyriformis. 



Isocardia transversa (d'Obigny.). 



brevis (d'Obigny.). 



Plagiostoma Iseviusculum (Sow.). 

 Lima rudis (Sow.). 

 Ostrea gregaria (Sow.). 



expansa ?? (Sow.). 



Mya gibbosa (Sow.). 

 Modiola, 



• Geological Transactions, New Series, voL i. p. 394. 

 t Zoological Journal, vol. iii. p. 41/. 



j See list of vegetable remains, inserted in the Tableau dcs Terraitu qui 

 composent Vecorce du Globe, par Alex. Brongniart, p. 41 3. 



Nerinea. 



