D0 STALK- AND SESSILE-EYED CRUSTACEA 
teeth. Anterior legs of the male very much enlarged, hand smooth 
and swollen, fingers straight, with a space between them when closed. 
Length $ in.; breadth 2 in. 
Auckland (Heller); New Zealand (Coll. Brit. Mus.). 
It is widely distributed in the Southern Seas, being very common at 
the Falkland Islands and Kerguelen Island; and is also found on the 
Australian Coast, 
? Var. orbiculus, with the teeth of the antero-lateral margins obsolete. 
? Cancer orbiculus, Fabr, Ent. Syst. ii, p. 444, (1793). 
Leucosia? orbiculus, White, Dieffenb. New Zealand ii, p. 266, (1843). 
New Zealand (Coll. Brit. Mus.). 
The type specimen of the C. orbiculus of Fabr. is in the Collection 
of the British Museum. It is very much injured, but I think it can 
be nothing but a specimen of H. planatus with the marginal teeth 
obsolete. 
HYMENICUS. 
Hymenicus, Dana, U.S. Explor. Exped. xii, Crust. part i, p. 387, 
(1852). 
Carapace depressed, flat, sub-orbicular. Front with a short, rounded 
or trilobate beak, the first (inner) antenne not being seen in an upper 
view, the base bemg wholly concealed beneath the carapace. Third 
joint of the external maxillipeds rather larger than the second. Feet 
slender, hand of moderate size. 
55. Hymenicus varius. 
Hymenicus varius, Dana, Proc. Acad. Nat. Sci. Philad. p. 254, 
(1851); U.S. Explor. Exped. Crust. part i, p. 387, pl. xxiv, fig. 9, 
(1852). 
Hymenicus novizealandie, Dana, Proc. Acad, Nat. Sci. Philad. 
p. 254, (1851). 
Carapace smooth, naked, flat, nearly orbiculate, or ovato-orbiculate 
very shghtly wider than long, front projecting and trilobate. Antero- 
lateral margin with two obsolescent teeth. Abdomen of male narrow 
oblong, sub-triangular, first segment broadest and triangulate on either 
side, penult. narrower than preceding, last oblong sub-triangular, 
rounded at apex. Anterior feet of moderate size, eight following very 
