Mr. E. J. Miers on Arctic Crustacea. 103 



perfect condition. There can, however, bo no doubt about its iden- 

 tification. Length | inch (about 13 millims.). 



This species is found upon the coasts of Greenland and Spitz- 

 bergon. 



Eusirus cuspidatus. 



Eusirus cuspidatus, Kroyer, Nat. Tidsskr. 2 R. i. p. 501, pi. vii. ^^. 1 

 ( 1844-45) ; Voy. en Scaud. Crust. Atlas, pi. xix. fig. 2 ; Spence 

 Bate, Cat. Am23liip. Crust. Brit. Mus. p. 154, pi. xxviii. figs. 6, 7 

 (18G2); Goes, (Efv. Vet. Ak. Forh. p. 529 (18G5); Bucbholz, Crust, 

 in Koldewey, Zweite deutsche Nordpolarf. p. 313, pi. iii. fig. 12 

 (1874) ; Boeck, Skandin. og Arktiske Amphip. ii. p. 502 (187C). 



Coll. Hart: Franklin -Pierce Bay, 13-15 fathoms, one female 

 specimen. 



The single example in the collection is fully adult and bears ova. 

 Length 1 inch 7^ lines (41 millims.). 



The bases joint of the sixth and seventh pairs of legs is consider- 

 ably narrowed to its distal extremity. The second and third seg- 

 ments of the abdomen have the posterior margins rounded and very 

 finely serrated. This species has been described at great length and 

 figured by Bucbholz, I. c. ; but either the figure is carelessly executed 

 as regards many details, or it represents a very distinct species. The 

 rostrum is represented as much longer than in the specimens I have 

 seen, the coxa of the fourth pair of legs with its inferior margin 

 straight (not rounded as in the examples I have examined), the 

 second and third segments of the postabdomen with the posterior 

 margins strongly angulated, &c. 



This species has been found at Greenland, Spitzbergen, Finmark, 

 and Norway. 



Tritropis aeuleata. 



Oniscus acideatus, Lepechin, Acta Acad. Sci. Petropolitana, p. 247, 



pi. viii. fig. 1 (1780). 

 Talitrm Edwardsii, Sabine, Append, x. in Capt. Pany's 1st Voy. p. 54, 



pi. ii. figs. 1-4 (1821) ; Ross, Append. Capt. Parry's 3rd Voy. p. 119 



(1826) ; Appeud. Capt. Parry's 4th Voy. p. 209 (1828). 

 Amphitho'e Edioardsii, Owen & Ross, Crust, in Append. Ross's 2nd Voy. 



p. xc (1835) ; liroyer, Voy. en Scand. Atlas, Crust, pi. x. fig. 1. 

 Amphithomtus Edioardsii, Spence Bate, Cat. Amphip. Crust. Brit. Mus. 



p. 151, pi. xxviii. fig. 5 (1802). 

 Amphithonotus aculeatus, Goes, OSfv. Vet. Akad. Fbrhandl. p. 526 



(1865) ; Bucbholz, Crust, in Koldewey, Zweite deutsche Nordpolarf. 



p. 316, pi. iv. (1874). 

 Tritropis aeideata, Boeck, Forh. Vid. Selsk. p. 158 (1870) ; Skand. og 



Arktiske Amphipoder, p. 511 (1876). 



Coll. Feilden : Discovery Bay, at 25 fathoms, one male, four fe- 

 males ; Cape Napoleon, at 25 fathoms, three males, seven females ; 

 Floebcrg Beach, at 10 fathoms, two males, five females ; Franklin- 

 Pierce Bay, at 15 fathoms, thirteen specimens (dried). 



Coll. Hart : Franklin-Pierce Bay, 13-15 fathoms, twelve females ; 



