Crustacea.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 643 



fourth joint on the palp of the maxillipedes, it does not appear to me to harmonize 

 in all respects with the terrestrial species of Parorchestia known to me. The setae on 

 the antennae and peraeopods are shorter and less prominent, the peraeopods them- 

 selves are stouter and less elongated, and the finger is shorter and thicker and the 

 pleopoda longer than in the truly terrestrial species. 



Genus Hyale, H. Rathke, 1837. 

 Distribution. — On all shores. 



Hyale hirtipalma, Dana. 



Allorchestes hirtipalma, Dana, P. Amer. Ac, ii, p. 205, 1852, and U.S. Expl. 

 Exp., xiii, ii, p. 888, pi. Ix, fig. 4, 1853 and 1855. Nicea fimhriata, 

 Thomson, Trans. N.Z. Inst., xi, p. 236, pi. x6, fig. 2, 1879. Hyale 

 ^mbriata, Thomson, Trans. N.Z. Inst., xxvii, p. 211, 1895. H. hirti- 

 palma, Stebbing, " Das Tierreich Amphipoda," p. 564, 1906. H, 

 trigonochir, Walker, Ann. & Mag. Nat. Hist., ser. 8, ii, p. 37, 1908. 

 H. villosa. Smith, Bull. U.S. Nat. Mus., No. 3, p. 58, 1876 ; Stebbing, 

 " Das Tierreich Amphipoda," p. 574, 1906. Allorchestes georgianus, 

 Pfeffer, Jahrb. Hamburg, Anst., v, p. 77, pi. i, fig. 1 a-n, 1888. Hyale 

 georgiana, Stebbing, " Das Tierreich Amphipoda," p. 572, 1906. 



I have specimens of this species from Enderby Island, and others from Persever- 

 ance Harbour, Campbell Island, and also from the Antipodes Islands (collected by 

 Dr. L. Cockayne in 1903), and from Macquarie Island (A. Hamilton). 



The specimens from Enderby Island agree precisely with Mr. Walker's Hyale 

 trigonochir, but this species is, I think, undoubtedly the same as H. hirtipalma (Dana). 

 Mr. Walker says that the form of gnathopod 1 in the male is the most salient cha- 

 racter of his species. In large full-grown males the propod of this gnathopod is 

 certainly more triangular than in the female or in immature males. I find, however, 

 on comparison of different specimens that there is very considerable variation in the 

 shape of this joint : for example, some males from the Antipodes Islands show the 

 propod quite triangular, as in Mr. Walker's figure, while in others it is more oblong, 

 though these already possess the tufts of fine hairs characteristic of the male, and 

 apparently only attained to the full extent in mature males. 



The species is found throughout New Zealand and the adjacent islands, in South 

 America (Valparaiso, Island of San Lorenzo, Peru). 



I think there can be no doubt that Hyale villosa, S. I. Smith, from Keguelen, 

 and Allorchestes georgianus, Pfeffer, from South Georgia, also belong to the species, 

 and that it is therefore widely distributed in subantarctic seas. 



Hyale novae-zealandiae (G. M. Thomson). 



Nicea novae-zealandiae, G. M. Thomson, Trans. N.Z, Inst., xi, p. 235, pi. x b, 

 figs. 1 a-f, 1878. Hyale novae-zealandiae, G. M. Thomson, I.e., xxvii, 

 pr211, 1895; Stebbing, "Das Tierreich Amphipoda," p. 567, 1906. 



Specimens obtained from Macquarie Island by Mr. A. Hamilton are referred 

 by Mr. Thomson to this New Zealand species. I have several specimens from the 

 Snares that appear also to belong to this species, which, according to Stebbing, is 

 very near to H. grandicornis, Kroyer, from South America (Valparaiso). 



