Land, Fresh- Water, and Marine Crustacea. 161 



82. Paratylus falcatus (Metzger). 



1871. Atylus falcatus, Metzger, Wirljelosen Meeresthiere der 

 ostfriesischen Kiiste, Beitr. II. p. 9. 



Hahitat. — Firth of Forth, 1896; several specimens in my 



collection. 



83. Paratylus toncinatus, G. 0. Sars. 



1882. Atylus uncinatus, G. O. Sars, Oversigt af Norges Crust., 

 p. 102. 



Hahitat. — Off Aberlady, 12th December 1892, and again 

 in the spring of 1893. This form does not appear to be 

 very rare, but it may be easily passed over as a more 

 common species. 



84. Paratylus vedlomensis (Bate and Westwood). 



1863. Dexamine Vedlomensis, Bate and Westw.. Brit. Sessile-eyed 

 Crust., vol. i. p. 242. 



Habitat. — Taken sparingly in several localities between 

 Inchkeith and May Island. Dredged off St Monans, 22nd 

 May 1901. 



Family Dexaminid^. 

 Genus (50) Dexamine, Leach, 1814. 



85. Dexamine spinosa (Montagu). 



1813. Cancer gammarus spinosus, Mont., Trans. Linn. Soc. , vol. xi. 



p. 3, pi. ii. fig. 1. 

 1863. Dexamine spinosa, Bate and Westw., op. cit., vol. i. p. 237. 



Habitat. — Obtained at low-water at Prestonpans (Cunning- 

 ham ; Leslie and Herdman). Off Musselburgh, 1888. This 

 appears to be a rare species in the Forth estuary. 



86. Dexamine Tliea, Boeck. 



1870. Dexamine Thea, Boeck, Crust. Amphip. bor. et arct., p. 107. 



Habitat. — Firth of Forth, 1896 ; scarce. 



Genus (51) Tritseta, Boeck, 1876. 



87. Tritmta gibbosa (Spence Bate). 



1862. Atylus gibbosus, Bate, Catal. Ani]^hip. Brit. Mus., p. 137, 

 pi. xxvi. fig. 3. 



Habitat. — Firth of Forth, 1896 ; not common. 



VOL. XVI. Q 



