CRUSTACEA OF THE MERGUI ARCHIPELAGO. 45 
Eurycarcinus natalensis, Krauss, and E. Grandidieri, A. M.- 
Edw., the second lateral tooth is the largest of all, andin EL. inte- 
grifrons, d. M., the two anterior antero-lateral teeth are of equal 
size.) The subhepatic region is minutely granular and hairy. 
The endostome is faintly ridged on each side. Thesternum of the 
male is minutely punctate when seen under a magnifying-glass, 
and the postabdomen is seven-jointed. 
The chelipedes are very unequal in size, and in this specimen 
the right is the largest. As in the case of the ambulatory legs, 
they seem to agree in all respects with those of the Zanzibar 
specimens described by Milne-Edwards. The ambulatory legs 
are provided along their upper and under margins with some 
hairs, few in number on the meropodites, but more numerous 
and dense on the two terminal joints, which moreover bear a 
close down; and finally the carpopodites of the chelipedes 
are armed with a small rather acute tubercle at their internal 
angle. As in specimens from Zanzibar, the outer surface of the 
hands is marked with numerous small red spots. 
This very rare species has hitherto been known oniy from the 
shores of Zanzibar. 
Genus Ozius, H. IL-Edw. 
32. Ozius tTuBERCULOSUS, H. I.-Hdw. 
Ozius tuberculosus, Milne-Edwards, Hist. Nat. Crustacés, t. 1. p. 405. 
Ozius tuberculosus, Alph. Milne-Edwards, Nouv. Arch. du Muséum 
Hist. Nat. t. ix. p. 238, pl. xi. fig. 2; Heller, Crustaceen der Novara- 
Reise, p. 23. 
One fine female specimen was collected at Sullivan Island. It 
has the cephalothorax 57 millim. broad and 41 millim. long. 
Ozius tuberculosus had been previously recorded from the 
Mauritius, the Nicobar Islands, and New Caledonia. 
Genus Eprxantuvs, Heller. 
Although scarcely generically distinct from Oziws, the genus 
Epizanthus may be retained for those species the cephalothorax 
of which is more enlarged, more depressed and flattened, and 
in which the fingers of the smaller chelipede are very slender 
and in contact with one another over their whole length. The 
genus is represented in the Indo-Pacific region as well as on 
the shores of West Africa. The former region is inhabited by 
Episanthus frontalis, M.-Edw., H.dentatus, White, and Z. cor- 
