REPORT ON THE AMPHIPODA. 907 



Remarks. — This appears to be the same species as that named Atylus huxleyanits by 

 Spence Bate, which was brought from Hermit Island by the Antarctic expedition. 

 Hermit Island is in hit. 55° 51' 20" S., long. 67° 32' 10" W.; Stanley Harbour in lat. 

 51" 40' S., long. 57° 35' W. 



The species is separated from the genus Atylus by the robust mandibular palp, by 

 the maxillipeds, of which the outer plate is not dentate, and the palp broad instead of 

 narrow, by the fifth and sixth segments of the pleon, which are distinct, not coalesced, 

 and by the telson, which is not divided, but very slightly emarginate. Its nearest ally 

 seems to be Halirages tridentatus, Bruzelius. 



Genus Atylus, Leach, 1815. 



1815. Atylus, Leach, The Zoological Miscellany, vol. ii. p. 21. 



1515. ,, Leach, Traus. Linn. Soc. Lond., vol. xi. pt. ii. p. 357. 



1516. ,, Leach, Annulosa, Encycl. Brit. SuppL, p. 425. 



1816. AtyJe, Latreille, Nouveau Diet, vol. i. 



1825. „ Desraarest, Consid. gen sur la classe des Crust., p. 262. 

 1S30. Atylus, Milne-Ed wards, Ann. d. Sci. Nat, t xx. p. 383 (32). 

 1840. „ Lucas, Hist. Nat. des Crust. Arachn. et des Myriap., p. 231. 

 1840. „ Milne-Edwards, Hist des Crust., torn. iii. p. 67. 



1851. Amphithonotus (pars), Costa, in Hope's Catal. Crost Ital., pp. 40, 46. 



1852. Ipliimedia (pars), Dana, U.S. Explor. Exped., vol. xiii. pt. ii. pp. 910, 926. 



1852. Atylus, Dana, U.S. Explor. Exped., vol. xiii. pt ii. p. 912. 



1853. Notrotopis, Costa, Rend, della Soc. r. Borb. 



1857. Nototropis, Costa, Ricerche sui Crost. Amf. Nap., pp. 175, 193. 



1860. Epidesura, Boeck, Fork ved de Skand. Naturf. 8de M0de, p. 659. 



1862. Atylus, Spence Bate, Brit. Mus. Catal. Amph. Crust, p. 133. 

 1862. „ Bate and Westwood, Brit. Sess. Crust, p. 244. 



1865. ParamphUhoe (pars), Goes, Crust, amph. maris Spetsb., p. 7. 



1865. Atylus, Lilljeborg, On the Lysianassa magellanica, p. 18. 



1866. „ Heller, Amph. der Adriatischen Meeres, p. 31. 



1869. ,, Norman, Last Report on Dredging among the Shetland Isles, p. 280. 



1870. „ Boeck, Crust, amph. bor. et arct, p. 109. 



1871. ,, Metzger, Die wirbellosen Meeresthiere der ostfriesischen Kiiste. 



1874. ,, Buchholz, Die zweite deutsche Nordpolarf., p. 357. 

 1876. „ Boeck, De Skand. og Arkt Amph., p. 322. 



1878. ,, Spence Bate, Crust, in Couch's Cornish Fauna revised and added to, p. 51. 



1875. „ G. M. Thomson, Trans. New Zealand Inst, vol. xi. p. 238. 



1879. „ Hoek, Carcinologisches, p. 134. 



1882. „ Sars, Oversigt af Norges Crustaceer, p. 101. 



1882. „ Haswell, Catal. Australian Crust., p. 242. 



18S5. ,, Cams, Prodrornus Faurae Mediterranean, p. 403. 



1885. „ Haswell, Proc. Linn. Soc. N.S.W., vol. x. pt i. p. 7 (sep. copy). 



1886. „ Gerstaecker, Bronn's Klassen und Ordnungen, Bd. v. Abth. ii. p. 507. 



For the original definition of the genus, see Note on Leach, 1815 (p. 89). 

 Boeck defines it as follows : — 



