Elasmopus viridis (Haswell).

Moera viridis Haswell, Proc. Linn. Soc. N.S.W., vol. 4, p. 333, pl. 21, fig 1, 1879. M. incerta Chilton, Trans. N.Z. Inst., vol. 15, p. 83, pl. 3, fig. 3, 1883. Elasmopus viridis Stebbing, Das Tierreich Amphip., p. 445, 1906.

Several specimens from Island Bay, Wellington (Farquhar coll.), were in Mr. G. M. Thomson's collection. The species is known from Australia also.

When I described this species under the name Moera incerta I had seen only specimens in which the second gnathopod had the palm straight—i.e., the females. Since then I have seen a few in which the palm has a slight central cavity, as described by Haswell and Stebbing, though the cavity is by no means so deep as that shown in Haswell's figures; I think, therefore, that Stebbing is right in uniting the two species. These specimens, are, I presume, males, and it is worthy of note that in this species the females have the second gnathopods approximately as large as those in the males, and, with the exception of the palm, of the same general shape.