98 Proceedings of the Royal Physical Society. 



not expected to add mucli to what is already known con- 

 cerning the fresh- water Crustacea of the district. For a 

 description of the physical geography of the estuary, see the 

 Introduction to Parnell's Fishes of the Firth of Forth, and 

 to Leslie and Herdman's Invertebrate Fauna of the Estuary. 



(2) On the History of the Crustacean Fauna of the Forth. 



Contributions by Sir Egbert Sibbald and 

 Professor Jameson. 



Though Sir Eobert Sibbald in 1710, and Professor 

 Jameson in 1809, published lists of Forth Invertebrata 

 which are of much interest, the number of Crustacea re- 

 corded by them is small, and consists for the most part 

 of the larger species. 



Contributions by Harry Goodsir. 

 The interesting field opened up by the researches of Harry 

 Goodsir, and the success that attended his labours, might 

 have directed some attention to the micro-crustacean fauna 

 of the Firth of Forth, but the so-called " stalk-eyed " forms 

 still continued to be the chief object of study. Even Pro- 

 fessor Bell, in his work on the British Stalk-eyed Crustacea, 

 could add little to what Goodsir had published on the 

 Schizopoda and Cumacea, but simply transcribed that author's 

 descriptions and drawings. 



Contributions by Dr James M'Bain. 



The lists of the flora and fauna of the Firth of Forth 

 prepared by Dr James M'Bain, E.K, and which form part 

 of the Appendix to the Eev. Walter Wood's JEast Neuk 

 of Fife — a local but valuable work on the history and 

 antiquities of that part of Fifeshire, published in 1862 — 

 marks an important stage in our knowledge of the natural 

 history of the estuary, and, as the author remarks, the lists 

 contained in that work are "more perfect than any which 

 had hitherto been published." 



In the list of Crustacea given on pages 375 and 376 of that 

 work, thirty-two species are recorded, the names of which 

 are as follow : — 



