138 Proceedings of the Royal Physical Society. 



27. Pleurogonium inerme, G. 0. Sars. 



1882. Pleurogonium inerme, G. 0. Sars, Oversigt af Norges Crust., 



vol. i. p. 67, pi. ii. fig. 5. 

 1891. Leptaspidia brevipes, T. Scott, Ninth F. B. Rept. , pt. iii. p. 308. 



Habitat. — Taken off Musselburgh, April 1891. 



28. Pleurogonium spinosissimum, G. 0. Sars. 



1866. Pleuracanthcb spinosissima, G. 0. Sars, Beretning oni en i 

 Somra., 1865, foretag. Zool. Reise ved Kyst. af Christiania 

 og Christiansands Stift. , p. 30. 



Habitat. — Taken at the north-west end of Inchkeith, 23rd 

 May 1901 ; rare. 



Genus (20) Eurycope, G. 0. Sars, 1863. 



29. (?) Eurycope mulica, G. 0. Sars. 



1863. Eurycope mutica, G. 0. Sars, Chr. Vid. Selsk.-Forhandl. 

 (1863), p. 6. 



Habitat. — Firth of Forth, near the Bass Rock, in 20 

 fathoms, 28th June 1904; two specimens that appear to 

 belong to this species — one of them an ovigerous female — 

 were obtained. 



Oniscoida. 



" This tribe comprises the air-breathing or terrestrial 

 Isopoda " (G. 0. Sars). 



Family Ligiid^e. 

 Genus (21) Ligia, Fabricius, 1798. 

 30. Ligia oceanica (Linne). 



1767. Oniscus oceanicus, Linn., Syst. Nat., ed. xii., vol. ii. p. 1061. 



Habitat. — Cramond, 1888 (Mini). Aberlady, November 

 1891; North Berwick, August 1897; and shore at Dalmeny, 

 March 1901 (W. Evans). Also at Granton and other places, 

 under stones on the shore. 



