of the Fishery Board for Scotland, 265 



Gammarus marinus, Leach. 



1815. Gammarus marinus, Leach, 'Linn. Trans.,' vol. xi. p. 359. 

 1863. Gammarus marinus, Bate and Westwood, 'Brit. Sess.-eyed 

 'Crust.,' vol. i. p. 370. 



Habitat — Firth of Forth, inshore, in the vicinity of Culross. Gammarus 

 marinus is easily distinguished by the very short inner ramus of the 

 posterior pleiopoda. This species does not appear to have been previously 

 recorded for the Forth, though it is not uncommon towards the head of 

 the estuary, especially where there are sea-weeds between the tide marks. 



Photis longicaudata (Bate and Westwood). 



1863. Eiscladus longicaudatus, Bate and Westwood, 'Brit. Sess.- 



' eyed Crust.,' vol. i. p. 412. 

 1877. Photis longicaudata, Meinert, * Crust. Isop. Amphip. et 



' Decapoda Daniae.' 



Habitat. — Firth of Forth, off St Monans. Several specimens were 

 obtained by dredging. 



Family Hyperiid^e. 



Parathemisto gracilipes (Norman). 



1868. Hyperia oblivia, Bate and Westwood (non Kroyer), 'Brit. 



' Sess.-eyed Crust.,' vol. ii. p. 16. 

 J 869. Hyperia gracilipes, Norman, ' Report on dredging among the 



' Shetland Islands (in Report of the 38th Meeting of the Brit. 



'Assoc, 1868.' London 1869). 

 1887. Parathemisto longipes, Bov<pllius, 'Sytem. list of the Amphip. 



' Hyperiidea ' (Behang till K. svenska Vet.-Akhad. Handling- 



ar. Band. 11, No. 16. Stockholm 1887). 



Habitat. — Largo Bay. A number of specimens taken with tow-net. 

 The specimens here ascribed to Parathemisto gracilipes, Norman, are 

 small (4 to 5 mm.), apparently all ^ and most of them with ova. They i_ / 



differ in several respects from Parathemisto oblivia, Kroyer, and particu- 

 larly in the carpus of the second Gnathopods being much less produced 

 inferiorly, — the carpal process being only about one-third of the length of 

 the propodos ; — and in the pereiopods being less slender and not so 

 elongate proportionally. Rev. T. R. R. Stebbing, who kindly examined 

 one or two specimens for me, writes : — ' The Small Hyperid is apparently 

 Parathemisto gracilipes, Norman, wrongly described and named Hyperia 

 oblivia, Kroyer, in B. and W.' 



Euthemisto compressa (Goes). 



1865. T/iemisto compressa, Goes, '0fvers. af Kgl. Svenska Vetensk 



'Akad. f0rhandl.,' p. 533, pi. xli. fig. 34. 

 1870. Parathemisto compressa, Boeck, 'Crust. Amph. bor. et Arct.' 



(Sserskilt aftryht af Vidensk. Selsk. Forhandlinger). 

 1 1878. Lestrigonus spinidorsalis, Sp. Bate, 'Ann. and Mag. Nat. 



'Hist.' (May 1878), p. 411, fig. 2. 

 1890. Euthemisto compressa, G. 0. Sars, 'Crustacea of Norway,' 



vol. i. p. 12, pi. v. fig. 2. 



Habitat. — West of May Island, February 1892. This species was 

 obtained among tow-net material collected when trawling Station V. 

 Attention was first drawn to it by its larger size and darker colour 

 than Parathemisto oblivio. It is readily distinguished by the body being 

 much compressed, by the dorsum being distinctly keeled, and by the two 

 last segments of the percion and the two first of the pleon being produced 



