652 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Crustacea. 



various species of fish. L. stewarti, Filhol, is, I think, hardly sufficiently distinct to 

 be maintained as a separate species. According to Mr. Whitelegge, L. novae-zealandiae 

 was taken by the " Thetis " Expedition at several localities ofE the coast of Australia. 

 I have also a small specimen from Norfolk Island that does not differ specifically 

 from the New Zealand species. It has also been recorded by Miers from Portland 

 Bay, Straits of Magellan.* Whitelegge unites this species with L. raynaudii, Milne- 

 Edwards, from the Cape of Good Hope ; this may very probably be correct, but 

 Milne-Edwards's original description is very short, and comparison of actual specimens 

 is desirable before finally reducing L. novae-zealandiae to the rank of a synonym. 



Earn. Serolidae. 

 Genus Serolis, Leach, 1825. 

 Distribution. — Widely distributed in subantarctic seas. 



Serolis latifrons, Miers. 



Serolis latifrons, Miers, Ann. & Mag. Nat. Hist., ser. 4, xvi, p. 74, 1875, 

 and Cat. N.Z. Crust., p. 117, pi. iii, fig. 7, 1876 ; Eep. " Challenger " 

 Isopoda, p. 44, pi. ii, figs. 1-4, 1884 ; S. I. Smith, Bull. U.S. Nat. Mus., 

 No. 3, p. 63, 1876. 



Recorded from " Rendezvous Cove, Auckland Islands," by E. J. Miers from 

 specimens in the British Museum.; This species is known also from Kerguelen and 

 the Crozets. 



Eam. Sphaeromidae. 



Genus Exosphaeroma, Stebbing, 1900. 

 Exosphaeroma, Stebbing, P.Z.S., 1900, p. 553. 

 Distribution. — ^ Widely distributed in southern seas. 



Exosphaeroma gigas (Leach). 



Sphaeroma gigas. Leach, Diet. Sc. Nat., xii, p. 346, 1818 ; Miers, Cat. N.Z. 

 Crust., p. 110, 1876 ; Hutton, Trans. N.Z. Inst., xi, p. 340, 1879 ; 

 Haswell, Cat. Aus. Crust., p. 287, 1882 ; G. M. Thomson, Proc. Roy. 

 Soc. Tasmania, p. 14, 1893; S. I. Smith, Bull. U.S. Nat. Mus., 

 No. 3, p. 63, 1876. S. obtusa, Hutton, Trans. N.Z. Inst., xi, p. 341, 

 1879. Exosfhaeroma gigas, Stebbing, P.Z.S., 1900, p. 553, 1900, 

 and " South African Crustacea," ii, p. 69, 1902 ; Hansen, Quart. Journ. 

 Micr. Sci., xlix, p. 118, 1905. 



The species is widely distributed in subantarctic seas. 



Full references to the earlier papers dealing with this species will be found in 

 the first of Mr. Stebbing's papers quoted above ; in it he considered Sphaeroma 

 lanceolatum, White, as a synonym of Sphaeroma gigas, Leach, but in the paper on the 

 " South African Crustacea " he says, " On the whole, it now seems to me that the 

 two forms ought to be kept specifically separate, and that the names allotted by Leach 

 and White may conveniently stand, although it may not be absolutely certain which 

 of the forms Leach had before him." 



*P.Z.S., 1881, p. 77. 



