Vol. 67.] KAINOZOIC MOLLUSCA FROM CTRENAICA. 637 



was dealt with in subsequent papers by Mayer-Eymar, based on the 

 examination of fossils from the same region, among some of the more 

 typical shells being JSatica (Ampullina) crassatina, which the same 

 author had identified, among Schweinfurth's uppermost Eocene 

 fossils from the Dime area of the Eayum. 1 



In 1896 Mayer-Eymar 2 mentioned some imperfect fossils collected 

 at Kum el Kashab (near Cairo) which he supposed to be Lower 

 Ligurian and resembling those found near Dime, as they probably 

 represented Ostrea cyathula var. Jimbriata and Pecten (Neiihea) 

 arcuatus, etc. Prof. Deperet published in 1896 3 some obser- 

 vations on the Tertiaries of Algeria. He had collected (op. cit. 

 p. 1117) at Beni-Amram certain fossils including Operculines, 

 small Cardita, and a small Pecten probably identical with Janira 

 fallax Michelotti (= Pecten arcuatus), from the Tongrian of Dego. 

 This limited and incomplete fauna he regarded as analogous to the 

 Tongrian beds with Nummulites jichteli, of Northern Italy and the 

 Ligurian Apennines. Priabonian rocks in Tunisia were recognized 

 by M. Plick in 1900, 4 his palseontological evidence including such 

 forms as Scutella and Clypeaster, related to S. striatula and 

 C. biarritzensis which occur at Biarritz and Priabona in Italy ; 

 Pecten nucalis Locard = P. michelotti D'Archiac, corresponding to 

 examples from Biarritz having non-carinated costae, and which was 

 stated to be equally common in the Venetian Alps ; another Pecten 

 showed affinities with P. tripartitus and P. gravesi of D'Archiac ; 

 there was also a variety of Oytherea incrassata and Pholadomya 

 puschi, found at Salcedo and Sangonini. The author regarded the 

 facies of this fauna as equivalent to that of the Venetian Alps and 

 belonging to the uppermost Eocene. 



In Dr. Blanckenhorn's memoir on the 'Palaeogene' of Egypt, 5 the 

 Nummulites intermedins and N. -Jichteli Beds of the Aradj district of 

 Egypt are recognized as of Lower Oligocene or Ligurian age, the 

 species being again mentioned as occurring in rocks of similar age 

 in Sinai, Palestine, and Syria. The presence of the Upper Eocene 

 or Bartonian in the same area (Aradj) is not acknowledged by this 

 author. He further recognizes the Kum-el-Kashab fossils, in- 

 cluding Natica crassatina, etc., as of Lower Oligocene or Ligurian 

 age. On p. 460 of the same memoir Dr. Blanckenhorn regards these 

 beds as Lower Ligurian, stating them to be the equivalent of the 

 Upper ' Biarritzschichten,'* Latdorfian, Priabonian, or Ludian of 

 Northern Italy, the Pyrenees, and Northern Germany. 



Similar rocks are present in Algeria, Dr. Pervinquiere having 

 collected Pecten arcuatus and Ostrea brongniarti at Boghari, this 

 author remarking that those fossils are found in the Priabonian, 

 although having their maximum occurrence in the Oligocene. 6 



Bull. Inst. Egyptien, ser. 3, vol. iv (1893) pp. 371-373. 

 Ibid. vol. vi (1896) p. 94. 



Bull. Soc. Geol. France, ser. 3, vol. xxiv (1896) p. 1115. 

 C. R Acad. Sci. Paris, vol. cxxx (1900) pp. 148-50. 

 Zeitschr. Deutsch. Geol. Gesellsch. vol. lii (1900) pp. 403-79. 

 ' Etude Geol. Tunisie Centrale ' 1903 [French Govt. Publication] p. 205. 



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