ft the f Foken) Boar il for Scotland. 965 
1815. igus 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 mmner 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. Hiscladus longicaudatus, Bate and Westwood, ‘ Brit. Sess.- 
* eyed Crust.,’ vol. 1. p. 412. 
1877. Photis longicaudata, Meinert, ‘Crust. Isop. Amphip. et 
* Decapoda Danie.’ 
Hatitat.—Firth of Forth, off St Monans, Several specimens were — 
obtained a, dredging. 
| Family HyYPErip&. 
4g Parathenisto gracilipes (Norman). 
a 1868. Hyperia oblivia, Bate and Westwood (non Kroyer), ° Brit. 
*Sess.-eyed Crust.,’ vol. ii. p. 16. 
a 1869. Hyperia gracilipes, Norman, ‘ Report on dredging among the 
‘Shetland Islands (in Report of the 38th Meeting ‘of the Brit. 
* Assoc., 1868.’ London 1869). 
1887. Parathenisto longipes, Bovallius, ‘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 
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. Themisto compressa, Goes, ‘Pfvers, af Kgl. Svenska Vetensk 
‘Akad. fgrhandl.,’ p. 533, pl. xli. fig. 34. 
1870. Parathemisto compressa, Boeck, ‘Crust. Amph. bor. et Arct.’ 
_(Seerskilt aftryht af Vidensk. Selsk. Forhandlinger). 
¢ 1878. Lestrigonus spimdorsalis, Sp. Bate, ‘Ann. and Mag. Nat. 
‘Hist.’ (May 1878), p. 411, fig. 2. 
1890, Huthemisto compressa, G. O. Sars, ‘Crustacea of ic, 
“g 
a : vol. i. p. 12, pl. v. fig. 2. 
q z Habitat.—West of May Island, February 1892. This species was 
leg obtained among tow-net material collected when trawling Station V. 
a 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 
| hea segments of the percion and the two first of the pleon being produced 
a 
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