neiv to or rare in the British Seas. 93 



Fyne. Subsequently other specimens were forwarded to me 

 which had been taken in Loch Long (Clyde) ; these exceed 

 in dimensions all others that I have seen, and measure 50 

 millim. long. 



8. Lastly, Prof. Ewart has sent me specimens taken from 

 the stomachs of herrings on the east coast of Scotland. 



The species would thus seem to be universally distributed 

 over the North Atlantic Ocean, though it was not met with 

 by the * Challenger ' expedition. 



Nyctiphanes may be at once known from the other genera 

 of the Euphausiidge by the presence of a scale-like process on 

 the basal joint of the antennules, which is projected up- 

 wards, and would seem to form a sort of screen for the eyes. 



Tribe Mysidea. 

 Genus Erythrops, G. O. Sars. 



Erythrops pygmcea^ G. O. Sars. 



Nematopus elegans, G. 0. Sars, Beretning om en i Somraeren 1862 

 foretao^en Zoologisk Reise i Cliristianias og TrondhjemsStifter, p. 42. 



Nematopus jn/gmcea, G. O. Sars, Beretning om en i Sommeren 1865 

 foretagen Zoologisk Reise ved Kysterne af Cliristianias eg Christian- 

 sands Stifter, p. 17. 



Erythrops pygmcsa, G. O. Sars, Monograplii o\'er de ved Norges Kyster 

 forekommende Mysider, 1870, p. 33, pi. ii. figs. 20-28. 



A very small species, about 6 millim. long, now added to 

 the British fauna ; the specimens procured by the Fishery 

 Board Laboratory at Tarbert. 



Genus MysidopsiS, G. O. Sars. 



Mysidopsis gihhosa^ G. O. Sars. 



Mysidopsis gihhosa, G. 0. Sars, Beretning om en i Sommeren 1863 

 foretagen Zoologisk Reise, p. 28 ; Monographi over de ved Norges 

 Kyster forekommende Mysider, 1872, p. 23, pi. viii. figs. 1-3. 



A single specimen taken by myself at Valentia, Ireland, in 

 1870. Three females sent for examination by the Fishery 

 Board Laboratory which were procured on a Zostera-bed at 

 Tarbert, Loch Fyne, 1885. Now first recorded as British. 



Mysidopsis angusta, G. O. Sars. 



gusta, G. O. Sars, Beretning om en i 

 oologisk Reise i Cbristiania Stiff, 18i 

 Norges Mysider, 1872, p. 23, pi. viii. fij 



A drawing of this species is before me, which was made 



Mysidopsis angusta, G. O. Sars, Beretning om en i Sommeren 1863 

 foretagen Zoologisk Reise i Cbristiania Stiff, 1804, p. 30; Mono- 

 graphi over Norges Mysider, 1872, p. 23, pi. viii. figs. 1-13. 



