Crustacea.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 615 



Order STOMATOPODA. 



Genus Lysiosquilla, Latreille, 1825. 

 Distribution. — Widely distributed. 



Lysiosquilla spinosa (Wood-Mason). 



Coronis spinosa, Wood-Mason, Proc. Asiatic Soc. Bengal, p. 232, 1875. 

 Lysiosquilla spinosa, Chilton, Trans. N.Z. Inst., xxiii, p. 62, pi. x, 1891. 



Recorded from the Auckland Islands by Hutton, under the name Squilla laevis. 

 Also known from various parts of New Zealand and from the Andamans (Wood- 

 Mason). 



Order AMPHIPODA. 



Suborder GAMMAKIDBA. 



Fam. Lysianassidae. 



Genus Nannonyx, G. 0. Sars, 1890. 



Distribution. — Widely distributed in northern and southern seas. 



Nannonyx kidded (S. I. Smith). 



Lysianassa kidderi, S. I. Smith, Bull. U.S. Mus., iii, p. 59, 1876 ; Stebbing, 

 Rep. " Challenger," xxix, p. 694, 1888. L. kroyeri, G. M. Thomson, 

 Trans. N.Z. Inst., xi, p. 237, 1879. Nannonyx thomsoni and N. kidderi, 

 Stebbing, " Das Tierreich Amphipoda," p. 36, 1906. Lysianax steb- 

 bingi, G. M. Thomson, Proc. Roy. Soc. Tasmania, 1892, p. 19, pi. iii, 

 figs. 9-18, and pi. v, figs. 9, 10, 1893. Socarnoides kergueleni and 

 S. stebbingi, Stebbing, " Das Tierreich Amphipoda," p. 47, 1906. 

 " Lysianassa ? " A. 0. Walker, Ann. & Mag. Nat. Hist., ser. 8, xi, 

 p. 34, 1908. 



Numerous specimens taken between tide-marks in Perseverance Harbour, Camp- 

 bell Island, in Carnley Harbour, Auckland Islands, and at the Snares, appear to 

 belong to this species. From the brief description that Mr. Walker gives, they are 

 certainly the same as a single specimen from Auckland Island described by him 

 under the name " Lysianassa ? " They are also undoubtedly the same as the species 

 common on the coasts of New Zealand which was referred to Lysianassa kroyeri 

 (White) by Mr. G. M. Thomson, and which appears in " Das Tierreich Amphipoda " 

 under the name Nannonyx thomsoni, Stebbing. Again, on comparing them with 

 Socarnoides kergueleni, Stebbing, I found that they agreed on the whole very closely 

 and in some points quite exactly, except that in my specimens the telson was entire 

 or only slightly emarginate at the extremity, while Mr. Stebbing describes and figures 

 the Kerguelen species with the telson fairly deeply cleft. In other respects the 

 telson in my specimens agrees closely with his description, even in the possession 

 of a long and a short plumose seta about the middle of the lateral margin. 



This difference between the telsons appeared at first sight to be rather important, 

 and puzzling, considering the close agreement of the two forms in nearly all other 

 respects. The question was also complicated by the fact that the type of Socarnoides 

 stebbingi (G. M. Thomson) which I was able to examine agreed closely with my speci- 



