106 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
than the propodites of these legs. The legs are somewhat hairy 
towards their extremities. 
The external maxillipeds are quite similar to those of P. 
globosus. 
The crabs above described are about 10 millim. broad. 
Pinnotheres parvulus was discovered by Stimpson in shells of 
Meroé quadrata from the Chinese sea; andthe Leyden Museum 
contains specimens found in shells of Cytherea from the coast of 
Padang, Sumatra. | 
Genus XaANTHASIA, White. 
67. XANTHASIA MURIGERA, White. 
' Xanthasia murigera, White, Ann. 6 May. Nat. Hist. 1st ser. vol. xviii. 
1846, p. 177, pl. 11. fig. 3. 
Xanthasia murigera, Milne-Edwards, Ann. Sci. Nat.t. xx. 1853, p. 221; 
Alph. Milne-Edwards, Nouv. Arch. du Muséum Hist. Nat. t. ix. p. 321. 
The Collection contains two female specimens, the larger of 
which is provided with eggs, whereas the other is sterile ; they 
were found in Tridacna crocea, Lam., at Owen’s Island. 
The cephalothorax of the larger specimen is 11 millim. broad 
and 10 millim. long. In both specimens the lateral margins are 
elevated into a thin acute crest or ridge, which, as White rightly 
describes, is curled round, on each side, behind the lateral knob, 
on the front of the carapace. In the smaller specimen both 
lateral margins are continuous, passing into one another at the 
posterior margin of the cephalothorax ; but in the larger specimen 
they do not pass into one another, the posterior margin being 
interrupted, though only by a narrow space, in the middle. The 
front, the upper surface of the elevated prominence on the 
middle of the carapace, and the outer surface of the posterior 
margin of the latter, are minutely and irregularly granular. The 
female abdomen, which bulges extremely, is coarsely and irregu- 
larly punctate, but the wide rounded keel which it presents 
in the middle is smooth. 
Xanthasia murigera has been recorded from the Philippine 
and Fiji Islands, and from New Caledonia. 
68. Xanruasia, sp. (Pl. VII. fig. 1.) 
The Collection also contains two other specimens of this genus,, 
found in the mantle-cavity of a Tridacna gigas in Elphinstone 
Island Bay. As the upper surface of the cephalothorax of these 
