138 Proceedings of the Royal Physical Society. 



27. Pleurogonium inermc, G. 0. Sars. 



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



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

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



Habitat. — Taken off Musselburgh, April 1891. 



28. Pleurogonium spinosissimum, G. 0. Sars. 



1866. Pleuracantha spinosissima, G. 0. Sars, Beretning om en i 

 Somm., 1865, foretag. Zool. Reise ved Kyst. af Chvistiania 

 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 mutica, G. 0. Sars. 



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

 (1863), p. 6. 



Habitat. — Firth of Forth, near the Bass Eock, 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. O. Sars). 



Family Ligiid.e. 

 Genus (21) Ligia, Fabricius, 1798. 

 30. Ligia oceanica (Linne). 



1767. Oniscus uceanicus, Linn., Sj^st. Nat., ed. xii., vol. ii. p. 1061. 



Habitat. — Cramond, 1888 (Mihi). 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 sliore. 



