Notes on a Post- Tertiary Fresh- Water Deposit. 341 



the same species from tlie Island of Portland, where he had 

 observed it in " a bed of sandy loam " in cliff debris. More 

 recently, in 1882, Mr Clement Ileid, F.G.S., in his paper on the 

 "Geology of the Country around Cromer," Norfolk, reports it 

 from that district. Up till this time it had been considered 

 an extinct species. In November 1886, while examining the 

 shores of Loch Fad (to the west of Rothesay, where I was 

 for the time stationed), I observed in a small patch of marshy 

 ground on the east side of the loch, and nearly opposite 

 Barmore Wood, a species of Ostracod unknown to me. Pro- 

 fessor G. S. Brady, to whom I sent some specimens, recognised 

 it as Cypris hrowniana, Jones. Subsequently he ascertained, 

 from an examination of the animal, that it was not a Cypris 

 but the type of a new genus. It has therefore been figured 

 and described in the recently published monograph by Drs 

 Brady and Norman under the generic name mentioned in 

 the list. It is not at all improbable that but for the fact of 

 its having so recently been found living by the side of Loch 

 Fad, its occurrence in the Elie loam might possibly have led 

 to an erroneous opinion being formed as to the relative age 

 of this deposit. The knowledge we now possess, however, as 

 to its distribution in time, removes out of the w^ay that 

 which might otherwise have proved a stumbling-block. 



In conclusion, I have to acknowledge the kindness of 

 Professor G. S. Brady, F.E.S., who examined my type-slides 

 (now exhibited) and revised my lists of Ostracoda ; also my 

 indebtedness to Mr J. W. Kirkby, of Kirkland of Leven, and 

 his boys, and to Mr David Affleck, station master, Elie, who 

 at considerable trouble to themselves, freely supplied me 

 with material for examination ; and last, but not least, to Mr 

 James Bennie of the Geological Survey, whose disinterested- 

 ness and readiness to oblige are well known to all who have 

 the privilege of his acquaintance. 



As some of the Ostracoda mentioned in the preceding 

 notes are not included in the " Ancient Lakes," and as con- 

 siderable chanoes have been made in the nomenclature, 

 especially of the fresh-water species, I append a list with 

 synonyms of those obtained from the two deposits here 

 described. 



