84 Proceedings of the Boyal Physical Society. 



in profusion in some places, and attains a 



large size. 

 Thuiaria thuja (Linn.). 



Firth of Forth (WB.); near Inchkeith 



(Til.) ; Leith shore (P. J.) ; Firth of Forth 



{PJd. Mus) ; Firth of Forth {F. E. S). 



Common in 5 fathoms and upwards. 

 T. articidata (Pallas). 



We dredged this species near Inchkeith 



last summer. 



Plumulariid^. 



Antennidaria antennina (Linn.). 



Firth of Forth (MB.). 

 We have dredged this species several 

 times. It is sometimes found cast up on 

 the beach. 



A. ramosa (Lamk.). 



Firth of Forth (3f'B.) ; Firth of Forth, 

 in 25 fathoms (F. E. S.). 

 We dredged this species last summer in 

 10 fathoms. It is not nearly so common 

 in the Firth of Forth as A. antennina, but 

 at Lamlash, on the west coast, it occurs in 

 profusion, and is much the commoner of 

 the two species. 



Plumularia pinnata (Linn.). 



Firth of Forth (MB.); Firth of Forth 

 {Ed. Mus) ; Firth of Forth, 25 fathoms 

 {F. E. S). 



Not uncommon; dredged last summer 

 between Inchkeith and Kirkcaldy. 



P. setacea (Ellis). 



Firth of Forth (M'B.). 



We obtained this species plentifully at 



low water mark near Elie some years ago. 



P. catharina (Johnst.). 



Firth of Forth {MB); Firth of Forth 

 {Colds.) ; Firth of Forth, on a sandy and 



