322 Notices of Memoirs — R. Bullen Newton — 



division of the Miocene formation. The following Gastropods maj* 

 also be referred to as dating from the Vindobonian stage of the 

 Miocene ; Streptochetus sexcostatus, also Messinian and Anversian ; 

 Bonellitia serrata, ranging into the Italian Plaisancian ; Terebra acu- 

 minata, occurring also in the Messinian of North Germany, the 

 Anversian of Belgium, and in the Plaisancian and Astian beds of 

 Italy; Maculopeplum lamberti, recorded as well from the Redonian 

 of France, the Diestian and Scaldisian of Belgium, the Box-stones 

 and the Coralline and Red Crags of England ; and Ficus reticulata 

 known also from the Redonian of France, the Messinian of North 

 Germany, the Bolderian, Anversian, and Diestian of Belgium, Box- 

 stones, Lenham Beds, and Coralline Crag of Britain, Plaisancian and 

 Astian of France and Italy, and belonging also to recent seas. Among 

 the chief Pelecypods similarly originating in Vindobonian times are : 

 Glans senilis, known also in the Redonian, Scaldisian, and Coralline 

 Crag ; Arcopagia ventricosa, also Plaisancian and Astian ; Tellina 

 benedeni, Messinian and from Bolderian to Scaldisian ; Plagiocardium 

 hirsutum, Plaisancian and Astian ; Astarte basteroti, Redonian, Dies- 

 tian, and Scaldisian ; Papillicardium papillosum, Messinian, Redonian, 

 St. Erth Beds, Plaisancian and Astian to recent seas ; Cyprina rustica, 

 Messinian, Anversian to Scaldisian, Box-stones, and Coralline Crag ; 

 Cyrtodaria angusta, Messinian, Bolderian to Scaldisian, Box-stones, 

 and Coralline Crag ; and Panopaa menardi, Anversian, Messinian, 

 Box-stones, Coralline and Red Crags. 



The only representative of the Brachiopod group of shells is Tere- 

 bratula perforata, which ranges through the Redonian of France, 

 Bolderian to Scaldisian of Belgium, and the Coralline and Red Crags 

 of Britain. With the exception of Ficus reticulata and Papilli- 

 cardium papillosum, which exist in present seas, the species thus 

 enumerated are extinct. Several of the Lenham species occur in the 

 Bolderian and Anversian beds of Belgium, the latter according to 

 M. Dollfus l being Vindobonian, and equivalent to his Redonian stage, 

 although attributed by Renevier 2 to the later Pontian (= Messinian) 

 division of the Miocene. The Anversian and Diestian occurrences 

 represent 34 and 30 species respectively, Box-stones 12, St. Erth 15, 

 and the Coralline Crag 50. It has been urged by Mr. Harmer that 

 the Coralline Crag fauna is younger than that occurring in the 

 Lenham deposits because several of the older shells found there and 

 that have been previously alluded to are absent in the Coralline Crag 

 beds, a fact more or less accurate, although some important forms 

 do occur in those deposits, such, for instance, as Margaritifera 

 phalcenacea, Glans senilis, Cyrtodaria angusta, Panopcea menardi, 

 Terebratula perforata, etc. 



All these facts seem to suggest that the Lenham and Coralline 

 Crag faunas, although showing certain differences of detail, are, 

 nevertheless, to be regarded as presenting a close relationship, and 

 therefore to be considered as of approximately the same age. Marked 

 affinities are also noticeable in the molluscan faunas of the Coralline 



1 Bull. Soc. G^ol. France, ser. iv, vol. iii, pp. 256-60, 1903. 



2 " Ckronographie Geol.— Text Explicatif": Comp. Eend. Cong. GeoL 

 Internat. (1894), 1897, p. 597. 



