216 Proceedings of the Royal Physical Society. 



11. Thoeacica — 



Lepadid^. 

 Lepas anatifera (Linn.). 



Attached to floating timber, Firth of Forth 



{Ed. Mus.). 



We have found this species cast ashore 



at North Berwick. 

 Conchoderma virgata (Spengl.). 



On floating timber, Firth of Forth {Ed. 



Mus). 

 C. aurita (Linn.). 



On floating timber, Firth of Forth {Ed. 



Mus.). 



Balanid^. 



Balanus halanoides (Linn.). 



Firth of Forth (Ed. Mus). 

 This is an exceedingly abundant species 

 between tide marks, and we have dredged 

 it very frequently in pretty deep water. 



B. porcatus (E. da Costa). 



Xot uncommon attached to stones, etc. 



B. crcuatus (Brug.). 



Bortobello {Ed. Mus). 



B. tiatinnabidum (Linn.). 



Leith Harbour, foreign importation {Ed. 



Mus). 



This species is an inhabitant of the 



warmer seas, and its occurrence in the 



Forth is an accidental circumstance. 



EDEIOPHTHALMATA. 



AMPHIPODA. 

 I. Saltatoii!a — 



Orchestiid^. 

 Talitrus locicstct (Linn.). 



Firth of Forth {Ed. Mus). 



Very abundant about high tide mark 



among stones, sea-weed, etc. 



