270 Proceedings of the Royal Physical Society. 



in the late summer and autumn months 

 . in Granton Harbour, Leith Eoads, Elie, and 

 elsewhere. It usually occurs in swarms. 

 II. EURYSTOMiE — 



BEROIDiE. 



Idyia ovata (Less.). 



Firth of Forth {F. E. S.). 



We have obtained this form in the autumn, 



off Elie. It is th e Beroe ovata of Eschscholtz. 



ACALEPHA. 



Atcrelia aurita (Linn.). 



Very common in the autumn months ; 



often stranded on the beach. 

 Cyanea cajnllata (Eschsch.). 



Common in all the lower reaches of the 



Firth, in the autumn. 



ZOANTHAKIA. 



I. ACTINARIA — 



SaGARTIADtE. 



Actinolola dianthus (Ellis). 



Firth of Forth, on rocks uncovered only 

 at very low tides (T. S. W); Firth of 

 Forth {Colds) ; Firth of Forth {M'B). 



Sagartia troglodytes (Johnst.). 



Firth of Forth {T. S. W.) ; Firth of Forth 

 {M'B). 



This species is commonly found on the 

 shore at very low water. We have obtained 

 it at Elie, Aberdour, and elsewhere. 

 The variety S. j^rasina of Gosse, found by 

 Dr Strethill Wright in the Forth, is an 

 inhabitant of deeper water. We have 

 dredged a considerable number of speci- 

 mens of it in the neighbourhood of Inch- 

 colm in 10 to 18 fathoms. It is charac- 

 terised by having the disc and tentacles 

 of a bright green colour. 



