﻿Mechtsce and Ctenophores from Firth of Forth. 301 



in the Firth.^ Only a dozen, including one or two obtained 

 by the German North Sea Expedition of 1872, are given in 

 Leslie & Herdman's catalogue of Forth marine invertebrates 

 (1881). In the Fishery Board's tables of observations made 

 on the " Garland," ctenophores and " small medusae " are 

 often entered, but the species seem seldom to have been 

 determined. 



The paucity of existing records must be our excuse for 

 bringing this slight contribution to the subject before the 

 Society. For the identification of several of the medusae we 

 have to thank Mr Edward T. Browne, B.A., University 

 College, London, who has kindly examined a set of our 

 specimens, and also enlarged our knowledge of the literature. 

 In any study of the Medusae and Ctenophora of the Firth of 

 Forth, Prof. M'Intosh's numerous records from the adjoining 

 area of St Andrews Bay ^ ought to be consulted. 



The synonymy given in the following notes is confined 

 to references to Forth records. 



MEDUSAE. 

 HYDROMEDUSAE. 



Margelis britannica (Forbes). 



Bougainvillia britannica, Forbes's "Monograph of the British Naked- 

 eyed Medusae," 1848; and Leslie & Herdman's " Invertebrate Fauna 

 of the Firth of Forth," 1881. 



This " beautiful little animated bubble," as Edward Forbes 

 so happily called it, occurred in Dunbar Harbour on the 

 2nd, and again on the 11th of July (1908) — a few specimens 

 being obtained on each occasion. The width of the largest 

 is 8 mm. 



Forbes met with M. britannica at the entrance of the Firth 

 of Forth prior to 1848, and Leslie & Herdman took it (in 

 surface net) east of Inchkeith in the summer of 1880. Prof. 

 M'Intosh has found it frequently in the tow-net in. St 



^ See Evans on " Our Present Knowledge of the Fauna of the Forth Area " 

 in the first part of this volume. 



2 In Ann. and Mag. Nat. Hist., Reports Fish. Bd. Scotl., etc. 



