M. Desnoyers on the Chalk of the Cotentin. 



259 



Shells. 

 Thecidea radians .... Defr. . 

 recurvirostra Defr. . 



Terebratula suhplicata . Mantell 



— pectita 

 -- rcairva 



— gallina 



— {(data 



Sow. 

 Def, . 

 Br. . 



Lam.) 



Other Localities. 

 . Maestricht. 

 Maestricht. 

 ["Upper chalk of Lewes, 

 <( Maestricht, Tours, 

 1^ Beauvais, &c. 

 Havre. 

 . Maestricht. 

 .n Common in the older 

 .J chalk. 



Radiated Animals. 



A . ■ r Chalk of Pans, 



Astenas -< o o 



\^ bussex, &c. 



Kent, 



Apiocrinites ellipticus . . Miller 



("Lower chalk of Tou~ 

 <( raine, Wiltshire, Kent, 

 L and Sussex. 



Echinites. 



Nucleolites (approaching 



N. asterostoma . . Desm.) 

 (approaching 



Lam.) 



Lam. 



N. columbaria 

 Spata?igus prunella 



cor anguinum Lam. 

 or suhorbicularis Defr. 



Echinus 



Cuv. & Br.<( 

 Lam. . . 



f Nucleolites are common 

 J in the lower chalk of 

 \ Tours, Rouen, and Ve- 

 (^ rona *. 



{Chalk of Me udon , Havre, 

 and Maestricht. 

 f Characteristic of the 

 <( lower chalk in many 

 {_ places. 



f Small species approach- 

 ing E. petaliferus, and 

 E. Menardi, Desm. 

 found in the greensand 

 of Cap la Heve and 

 Mans. 



Upper chalk of Meudon 

 and the environs of 

 Paris. 

 Chalk of Vei'ona. 



Ananchites ovata , . . 

 Clypeaster oviformis. 



Flustra rcticidata . . 



JlabclliJ'ormis 



Lichcnopora crctacea 



• Found also in the chalk with ouartz grains (the lowest part of the 

 chalk) in the vicinity of Lyme Regis, Dorset. — Trans. 



2 h 2 Lunulites 



Corals, ^c. 



Desm. & Les. 



Lamouroux. 



Delr Maestricht, Meudon. 



