CRUSTACEA OF NORTHUMBERLAND AND DURHAM 2^]! 



2. Sars (G. O.). Nye Bidrag til Kundskaben cm Middel- 



havets Invertebratfauna, I. Middelhavets Mysider 

 (Archiv for Mathem. og Naturvid., 1876). 



3. Norman (A. M.). British Schizopoda of tlie Families 



Lophogastridffi and Euphausiidre (Ann. and Mag. 

 Nat. Hist., ser. 6, vol. ix., 1S92, p. 454), and British 

 Mysidae, a family of Crustacea Schizopoda (Ann. and 

 Mag. Nat. Hist., ser. 6, vol. x., pp. 143 and 242). 



A description of all British species known up to 1892 is to 

 be found in these last papers. 



Section I.— EUPHAUSIACEA 

 Fam. I.— EUPHAUSHD^ 



Thysanoessa longicaudata (Kroyer). 



1849. Thysanopoda longicaudata, Kroyer, Voyages en 



Scandinavie etc., Crust., pi. viii., fig. i a-f. 

 1882. Thysanoessa tenej-a, G. O. Sars, " Oversigt af Norges 



Crust. I." (Christ. Vidensk. Forhand.), p. 53 (separate 



copy), pi. i., figs. 18, 19. 

 1887. Thysanoessa lojigicattdata, H. J. Hansen, Overs. 



over det vestlige Gronlands Fauna af malak Havs- 



krebsdyr (Vidensk. Middel. fra den naturf. Foren. i 



Kjobh.), p. 54 (separate copy). 

 1892. Thysanoessa longicaudata, Norman, Ann. and Mag. 



Nat. Hist., ser. 6, vol. ix., p. 463, and " The Naturalist," 



1892, p. 175. 



In "The Naturalist," May, 1892, Mr. Thomas H. Nelson 

 wrote (p. 144) describing what he observed off Redcar, 

 "Feb. loth, nth, and 12th, attracted by the number of 

 Kittiwakes (Rissa tridactyla) to be seen about a mile out at 

 sea, I 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 over- 

 head and then darting down to pick up some object from the 

 surface. I shot two or three examples, and found that their 



D 



