68 STALK- AND SESSILE-EYED CRUSTACEA 
Sub-Tribe V. GALATHEIDEA. 
Galatheides, M. Edw. Hist. Nat. Crust. u, p. 270, (1837). 
Galatheidea, Dana, U.S. Explor. Exped. xii, Crust. part i, p. 401, 
(1852). 
Carapace elongated, of hard crustaceous consistency, and with a 
deep groove above, partly defining the gastric region. Internal 
antenne short, external antenne elongated. External maxillipeds 
pediform, Sternum wider behind. Abdomen elongated, rounded 
above, of crustaceous texture, with elongated appendages beneath, and 
terminal appendages fan-shaped and expanded as in the Macroura. 
Anterior legs large, perfectly chelate. Three following pairs with 
styliform tarsi; fifth pair weak, inflexed. 
MUNIDA. 
Miunida, Leach, Dict. Sci. Nat. xvii, p. 52, (1820); Dana, U.S. 
Explor. Exped. xii, Crust. part 1, p. 478, (1852). 
Galathea, M. Edw. (part) Hist. Nat. Crust. ii, p. 273, (1837). 
Carapace depressed, marked with transverse ciliated lines, which 
present an imbricated appearance; antero-lateral margins spinose. 
Front composed of three long, distinct spmes. Anterior legs generally 
more elongated and slender, and less compressed than in Calathea ; 
spinose. Ambulatory legs slender. 
This genus was not considered distinct from Galathea by M. Milne 
Edwards, but has been sustained by Bell, and most succeeding 
authors. 
75. Munida sub-rugosa. 
Galathea sub-rugosa, List Crust. Brit. Mus. (1847), sine descr, 
Munida sub-rugosa, Miers, Zool. Erebus and Terror, Crust. po BD; 
pl. iui, fig. 2, (1874). 
Carapace oblong, the sides slightly curved, the lateral margins with 
seven or eight spines. Middle spine of front projecting considerably 
beyond the eyes, lateral ones not quite half as long as the middle spine, 
and not projecting beyond the eyes. A second smaller spine behind 
each of the lateral frontal spines. A spine on either side of the middle 
line in the gastric region, Second, third, and fourth abdominal see- 
ments with a spine on either side of the middle line, Arms now 
