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SUPPLEMENT TO THE BRITISH 



Isle of Wight. It is very abundant in rocks of the same period at Vivortier (Orne) and 

 other places in Prance. M. Pictet describes it as from the Upper Gault (our Cambridge 

 Upper Greensand) of St. -Croix in Switzerland ; and it has also been met with by Dr. 

 Geinitz in the Upper Greensand of Saxony. 



74. Rhynchonella Mantelliana, Soid. Dav., Cret. Mon., PI. XII, figs. 20 — 23. 



Specimens from Lower Chalk, Chalk-marl, and Upper Greensand or Chloride Marl ; 

 also Red Chalk, Speeton (Rev. T. Wiltshire). It occurs in the Lower Chalk of La Cadiere 

 (Dept. du Var), Prance. Dr. Geinitz describes and figures it from Saxony. 



75. Rhynchonella Cuvieri, d'Orb. Dav., Cret. Mon., PI. X, figs. 50 — 54. 



Specimens from the Lower Chalk of Watlington, Oxon. In France it is a common 

 fossil in the Chalk with Micraster cor-testudinarium. 



76. Rhynchonella sulcata, Park. Dav., Cret. Mon., PI. X, figs. 18 — 20, 21 and 



22 ? and 23—36. 



I am somewhat uncertain with reference to the specimens figs. 21 and 22, which the 

 late Mr. Bean found in the " Speeton Clay." In the Museum of the School of Mines there 

 are some fine examples from the Lower Greensand Polkstone ; and I am informed by Mr. 

 Meyer that this species occurs in the Lower Chalk of Croydon and Guildford, but I have 

 not seen specimens from those localities. The shell is most abuudant in the Upper Green- 

 sand of Cambridge ('Etage Vraconien/ or Upper Gault, of Renevier and Pictet). It occurs 

 also in the Red Chalk of Hunstanton ; and I have found it equally abundant and 

 characteristic in beds of the same period at Ese between Nice and Monaco. Pictet 

 quotes it from the Upper Greensand of Saint-Croix (Switzerland) ; from the Gault of 

 the Perte du Rhone and the Grand Bernard ; the Col de Cheville ; the Upper Gault of 

 Cosne (Nievre) and Valbonne (Gard). 



77. Rhynchonella depressa, Sow. Dav., Cret. Mon., PI. XI, figs. 28 — 32 ; PI. XII, 



fig. 26 (not 28—30?) ; Sup., PI. VIII, figs. 

 24, 24 a, 25. 



In PI. XI were represented Sowerby's typical forms of Rh. depressa, which, as has been 



