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



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

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



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

 bergen. 



Eusirus cuspidatus. 



Eusirus cuspidatus, Ki-ciyer, Nat. Tidssbr. 2 R. i. p. 501, pi. vii. fig. 1 

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

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

 (1802); Goes, (Efv. Vet. Ak. Forh. p. 529 (1865); Buchholz, Crust, 

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

 (1874) ; Boeck, Skandiu. og Arktiske Amphip. ii. p. 502 (1876). 



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 7i 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 Buchholz, 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 aculeata. 



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



pi. viii. fig. 1 (1780). 

 Talitrus Edwarclsii, Sabine, Append, x. in Capt. Parry's 1st Voy, p. 54, 



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



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

 Amphithoe Edwardsii, Oweii & lloss, Crust, in Append. Ross's 2nd Voy. 



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

 Amphithonotus Edwardsii, Spence Bate, Cat. Amphip. Crust. Brit. Mus. 



p. 151, pi. xxviii. fig. 5 (1862). 

 Amphithonotus aculeatus, Goes,, ffifv. Vet. Akad. Forhandl. p. 526 



(1805) ; Buchholz, Crust, in Koldewey, Zweite deutsche Nordpolarf. 



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

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



Arktiske Auipbipoder, p. 511 (1876). 



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

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

 Flocbcrg 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 ; 



