82 Transactions.— Zoology. 
Moera petriei,G. M. Thomson. (Trans. N.Z. Inst., xiv., p. 286, pl. xviii., fig. 8). 
This species was described by Mr. Thomson from specimens obtained 
at Port Pegasus in the dredge. I have found it pretty abundantly in Lyt- 
telton Harbour at low tide. The female differs from the male in the form 
of the second pair of gnathopoda. In these the carpus is much longer than 
in the male, being slightly longer than broad; it is densely haired, the hairs 
being chiefly arranged in rows; many if not all these hairs are serrated ; 
the propodos is only very slightly broader than the carpus, having tufts of 
setæ along both sides and also along the middle, those on the under sur- 
face being the most numerous and the thickest. Palm imperfectly defined 
by several strong sete at the point where the tip of the dactylos impinges. 
Dactylos slender, very acute. (See plate IL., fig. 4a.) 
Iu the male my specimens have the propodos of the gnathopoda less 
haity than the one drawn by Mr. Thomson, and the dactylos is more blunt, 
being quite rounded at the end. 
The two acute spines on the postero-dorsal margin of the fourth seg- 
ment of the pleon are invariable in both sexes. 
Genus Harmonia, Haswell, 
(Proc. Linn. Soc. N.8.W., vol. iv., p. 330, and Cat. Aust. Crust., p. 250.) 
Generic characters : —** Coxe not so deep as their respective segments. 
Superior antenne with an appendage. Inferior antenns longer than the 
superior pair. Mandibles with a palp. Maxillipedes unguiculate, sub- 
pediform, provided with a squamiform plate on the basos only. Gnatho- 
poda subchelate, unequal, posterior pair very large. Pereiopoda stout. 
Posterior pleopoda biramous, the rami short, conical. Telson single, 
elongate.” 
Of this genus Mr. Haswell says: “ This genus, of which I have as yet 
observed but one species, has affinities with Eurystheus and Amathia, but is 
distinguished from the former by the form of the telson and the stoutness 
of the pereiopoda, and from the latter mainly by the large size of the poste- 
rior gnathopoda." 
Before notieing Mr. Haswell's genus I had found the following species, 
and had begun to describe it as a new species of Eurystheus. 
Harmonia crassipes, Haswell, (Le., p. 880, pl. xix., fig. 8.) 
** Superior antenne as long as the cephalon and first six segments of 
the pereion, first and second segments of the peduncle subequal, the second 
narrower than the first, third scarcely distinguishable from the articuli of 
the flagellum; flagellum rather longer than the pedunele. Inferior an- 
tennæ longer than the superior pair; pedunele and flagellum subequal. 
Anterior gnathopoda small; propodos ovoid ; palm oblique, undefined. 
Posterior gnathopoda much larger ihan the anterior pair; carpus sub- 
