212 Proceedings of the Eoyal Physical Society. 



Crisia eburnea (Linn.). 



Firth of Forth (M'B.). 



C. denticidata (Lamk.). 



Firth of Forth {M'B). 

 Not uncommon in the Firth. We dredged 

 it last summer, south-west of Inchkeith, 

 in 5 fathoms ; off Aberdour, in 5 fathoms ; 

 and off Aberlady Bay, in 9 fathoms. 



TUBULIPORID^. 



Stomatopora dilatans (Johnst.). 



Firth of Forth {C. W. P.). 



S. incuTvata (Hincks). 



Outside the Isle of May (C. W. P.). 



Idmonea serpens (Linn.). 



On Zoophytes, Firth of Forth (Jf P.). 

 We dredged this species to the north-west 

 of the Isle of May in 26 fathoms. 



Diastopora patina (Lamk.). 



On the fishermen's lines, ISTewhaven 

 {C. W. P.); south-west of Inchkeith, 

 5 fathoms {noh) ; on shells. Zoophytes, 

 rocks, and Alg«, Firth of Forth {M'B). 



LlCHENOPOKID^. 



Lichenopora hispida (Flem.). 



On Algse, Firth of Forth (if'P.). 

 Z. radiata (Audouin). 



Firth of Forth {C. W. P.). 



CTENOSTOMATA. 



Alcyonidiid^. 

 Alcyonidium gelatinosum (Linn.). 



Bass Eock, 24 fathoms (Z".) ; Firth of 

 Forth (JPP.) ; Firth of Forth {Ed. Mus.) ; 

 off the Isle of May (noh.). 

 This species is common in the Firth, 

 in a few fathoms, attached usually to dead 



