of the Families Lophogastride and Euphausiide. 463 
2. Thysanoessa longicaudata (Kroyer). 
1849. Thysanopoda longicaudata, Kroyer, Voyage en Scandinavie &c., 
Crust. pl. viil. fig. 1 af. 
1882. Thysanoessa tenera, G. O. Sars, ‘ Oversigt af Norges Crust. 1.” 
(Christ. Vidensk. Forhand.), p. 53 (separate copy), pl. i. figs. 18, 19. 
1887. Thysanoessa longicaudata, H. J. Hansen, “ Overs. over det vestlige 
Gronlands Fauna af malak. Havskrebsdyr” (Vidensk. Middel. fra den 
naturh. Foren. i Kjobh.), p. 54 (separate copy). 
Thrown up in enormous quantity in St. Andrew’s Bay, 
April 22, 1886, and sent to me by Prof. M‘Intosh for deter- 
mination, who wrote subsequently that this species, to- 
gether with Nyctiphanes norvegica, occurred ‘so densely that 
the tidal wave was crowded with them, and miles of sand 
were strewed with their bodies which the receding wavelets 
left in streaks and curves” *. In ‘The Naturalist’ of this 
month (May 1892) Mr. Thomas H. Nelson, in his ‘ Ornitho- 
logical Notes from Redcar,’ writes (p. 144) :— February 
10th, 11th, and 12th. Attracted by the number of Kitti- 
wakes (Rissa tridactyla) to be seen about a mile out at sea, [ : 
procured a boat and went off to ascertain the cause of this 
vast assemblage’of gulls; both east and west, as far as the 
eye could reach, their graceful white forms were visible, many 
busily engaged dipping into the water and others flying 
overhead and then darting down to pick up some object trom 
the surface. I shot two or three examples and found that 
their mouths were full of small Crustaceans, with which the 
sea was literally alive; heaps of these were afterwards washed 
ashore by sea-winds, and afforded a feast for starlings and 
other frequenters of the tidal line.” Mr. Nelson sent to mea 
small bottleful of the Crustaceans for determination. The 
mass of them were Huthemisto compressa, Goés, an Amphipod 
allied to Hyperta, which had not been previously observed on 
our coast. ‘There were also several examples of Nematoscelis 
megalops, G. QO. Sars, and one of Thysanoessa longicaudata, 
Kroyer (Mus. Nor.). 
Distribution. Greenland, ‘ Valorous’ Exped., Stat. 8; 
Faroe Channel, ‘ Triton’ Exped., 1882 (Mus. Nor.), lat. 
59° N., long. 51° W. (Olrik, fide Hansen). Kroyer’s 
original examples were from lat. 61° N., long. 13° W., and 
lat. GO° N., long. 11° W. (Hansen), Western Norway and 
Varanger Fiord, Finmark (G. O. Sars). 
* Ann. & Mag. Nat. Hist. ser. 5, vol. xix. 1887, p. 140, 
