96 



POST-TERTIARY ENTOMOSTRACA. 



Note. — With regard to the Ostracoda which we have catalogued from the various 

 Post-tertiary beds of Scotland the only previous notices of their occurrence known to tlie 

 authors of this Monograph are the following : 



1. Dr. Howden, in his paper "On the Superficial Deposits of the South Esk,''^ 

 catalogues among the principal fossils found at the Dryley's Brick-work, Montrose — 

 Crustacea, Ct/there, sp. (?) 



2. Memoirs of the Geological Survey of Scotland : Explanation of — 



Sheet I. — Terally Brick-works. 



Entomosiraca : A few single valves much worn. 



Sheet II. — Monreith Tile-works. 



Cy there emaryinata ? 

 — pulcliella ? 



3. Mr. Peach's paper " On the Fossils from the Boulder-clay of Caithness," in 

 ' Report of British Assoc.,' 1862, Trans. Sect., p. 83, includes — Entomostraca, some 

 valves of Cythere ? 



V. THE POST-TERTIARY OSTRACODA. 



In this Monograph we describe 133 species, of which 93 are from the Post-tertiary 

 beds of Scotland. The species from the upper beds are the same as those inhabiting the 

 British seas at the present day, and their distribution corresponds ; but when the Ostracoda 

 catalogued from the true glacial deposits of Scotland are studied in connection with the 

 Mollusca, they yield the same general results both with respect to their relationship to the 

 fauna now inhabiting British waters and also to the glacial fossil fauna of Norway and 

 Canada. 



A few of these general relationships may be indicated. The names of the fossil 

 species to which reference is made will be given when we proceed to notice in detail the 

 facts connected with their distribution. 



' 'Trans. Geol. Soc. Edin.,' 1867-8, p. 6. 



