68 MB. E. J. MIERS ON GREENLAND ORTTSTACEA. 



The rostrum, which is obtusely rounded at its apex, has at the 

 apex on the lower margin an almost imperceptible point. It 

 is found in the seas of Spitzbergen, Greenland, Iceland, and 

 Norway. 



Atylus carinatus. 



Gammarus carinatus, Fabr. Ent. Syst. ii. p. 515 (1793). 



Atylus carinatus, Leach, Zool. Miscell. iii. p. 22, pi. lxix. (1815) ; M.- 

 Edw. Hist. Nat. Crust, iii. p. 68 (1840) ; S. Bate, Cat. Amphip. Crust, 

 Brit. Mus. p. 134, pi. xxv. figs. 1-3 (1862); Buchhoh, Crust, in 

 Zweite deutsche Nordpolarf. p. 357, pi- x. (1874) ; Boeck, Skandina- 

 viske og Arktiske Amphipoder, ii. p. 324 (1876) ; Miers, Ann. ty Mag. 

 Nat. Hist. (ser. 4) xx. p. 100 (1877). 



Amphitho carinata, Krdyer, Kongl. Danske Vid. Selsk. Afh. vii. p. 256, 

 pi. ii. fig. 6 (1838); Voy. en Scand., Atlas, Crust, pi. xi. fig. 1 ; M.- 

 Edw. Hist. Nat. Crust, iii. p. 41 (1840). 



A good series of specimens was dredged from a boat at Noursak 

 at about 20 fathoms. 



It is to be noted that these specimens are all of moderate or 

 even small size, very much smaller than the specimens obtained 

 by the British Arctic Expedition. 



Gammarus locttsta. 



Cancer locusta, Linn. Syst. Nat. (ed. xii.) p. 1055(1766). 



Gammarus locusta, Fabr. Ent. Syst. ii. p. 516 (1793); M.-Edw. Hist. 



Nat. Crust, iii. p. 44 (1840); S. Bate, Cat. Amphip. Crust. Brit. 



Mus, p. 206, pi. xxxvi. fig. 6(1862); Boeck, Scand. og Arktiske 



Amphip. ii. p. 366 (1876) ; Miers, Ann. Sf Mag. Nat. Hist. (ser. 4) xx. 



p. 101 (1877),ubisynon. 



An adult female is in the collection, taken in the rich haul off 

 Hare Island. 



Several specimens were also washed out of seaweed floating on 

 the surface of the sea at the entrance to Davis Straits, lat. 63° 27' N., 

 long. 54° 12' W., with specimens of a species of Coyepod (Thales- 

 tris serrulata, Brady). 



Mr. "Whymper notes that the species in this tube " lived in 

 fresh water, and were as lively in it as in salt water." 



The specimens taken from the seaweed are probably none 

 of them fully adult, and some are quite young. In these, the 

 eyes are oval, not uniform in shape ; the fasciculi of hairs (in 

 the larger specimens) on the dorsal surface of the fourth to the 

 sixth postabdominal segments are long and slender, there are two 

 hairs in the middle and two or three in each lateral fasciculus ; the 



