126 Rev. A. M. Norman's Notes on British, Ampliipoda. 

 1859. Gmnmarus Jcevis, Bruzelius, Skand. Ampliip. Gamm. p. CO, 



pi. ii.fi-. 10, d$. ^ , . r. 



1863. Meyameerahnffimana, Bate & Westw. Brit. Sessile-eyed Crust. 



Tol. i. p. 403, S • 

 1863. Me(/am(era othonis, iid. ibid. p. 40o, 2 . 

 1868. M^ra lonf/tmana, Norman, Last Report Dredging Shetland, 



Brit. Assoc. Rep. p. 284, J' 2 • 

 1876. Mcera lonf/imana, Boeck, De Skand. og Arkt. Ampliip. p. 382, 



The Gammarus othonis, M. -Edwards, and Gammarus lon- 

 gimanus, Leach, MS., are female and male of one species, and 

 the first name has precedence. 



llab. Shetland ; the Clinch ; Sound of Skye ; Oban ; Loch 

 Fyne ; Firth of Clyde, many places ; Northumberland and 

 Durham coasts ; Guernsey ; Koundstone, Ireland {^A. M. N.) ; 

 ]ianff {T. Edward)', North-east Scotland {Dr. Day) \ Mus. 

 No7-m. Salcombe, Devon {Stehhing) ; Liverpool Bay [G. H. 

 Fowler). 



Distribution. Bohusliin {Bruzelius) ; Moss, Norway 

 {Boeck) ; AVestern France {M. Doljuss, fide Chevreaux) j 

 Marseilles {Marion) ; Heligoland {Frey and Leuckart). 



2. Moera grossimana (Montagu). 



1804. Cancer (Gaimnarus) grossimanus, Montagu, Linn. Trans, vol. ix. 



pi. iv. fig. 5. 

 1814. Mceru (jrossimana, Leach, Edinb. Encyclop. vol. vii. p. 403. 

 1830. Gammarus Impostii, II. Milne-Edwards, Ann. des Sc. Nat. 



vol. XX. p. 308. 

 1862. Mcera grossimana, Bate «& Westw. Brit. Sessile-eyed Crust, vol. i. 



p.360, c?. 

 1866. Mara Donatoi, Heller, Beitr. Amphip. des Adriatischen Meeres, 



p. 41, pi. iii. fig. 26, $. 

 1885. Mara Donatoi, Carus, Prodr. Fauna} MediteiTaneae, p. 414, $• 

 1885. Mara grossimana, id. ibid. p. 414, c?. 

 1888. Mara grossimana, Th. Barrois, Cat. des Crust, marins rcc. aux 



Azores, p. 38, pi. iii. fig. 7, 5 . 



Prof. Th. Barrois has rightly pointed out that the Moira 

 Donatoi, Heller, is the female of this species. The female, 

 as found in our seas, exactly accords with it. That sex diflers 

 from the male chiefly in the form of the hand of the second 

 gnathopods, which widens rather more distally and has the 

 palm less irregular, being simply crenulated throughout and 

 edged with small spines (as in male) ; the strong finger is 

 similar to that of the male in being furnished on the u])per 

 margin with a row of setffi, but is without cilia on the lower 

 margin. 



llah. So far as I am aware Mara grossimana is confined 

 to the southern part of our seas, Jersey, Guernsey, and Herm j 



