CRUSTACEA OF THE MERGUI ARCHIPELAGO. LUZ 
the posterior margins of the meropodites of the last pair of legs 
of the female are never fringed with the tuft of short hairs found 
in G. Dussumiert. The specimens in spirit have quite a different 
colour from the similarly preserved specimens of G. Dussu- 
miert. The middle portion of the cephalothorax has a dark 
green colour, but the sides, including the external orbital angles, 
the lateral surfaces, and the pterygostomian regions, appear 
yellowish. In some individuals, however, the dark green or rarely 
bluish colour extends also upon the sides. The outer surface 
of the palm has a beautiful intense red colour, which is parti- 
cularly rich near the articulation of the fingers and towards 
the inner margin. The fingers in some present a fine violet 
colour, while in others they are yellowish, and the ambulatory 
legs have also the same colour. 
Dimensions. 
Gili Oa wl aes Wee 
mm. mm. mm. mm. 
Distance between the external 
OND WAL AMCIES! fo. .k ccc6c sveenens 25 23 217 20 
Length of the carapace (the front 
MUNCIE rae. ccaitats Nes eiatoc coe: ie Sa Ak, 
Length of the larger hand......... 424 32 
eneth or the palm ..........:... 19 #616 
Herm OL the palm. ................- 15 123 
Length of the fingers............... 234 16 
G. acutus may be easily distinguished from G. arcuatus, de 
Haan, and G. coarctatus, M.-Edw., from New Caledonia, by the 
shape of the cephalothorax. It is possible that some of the 
species described by Adams and White in the ‘Voyage of the 
Samarang, may prove to be identical with those of Muilne- 
Edwards; according to Mr. Kingsley, G. forcipatus, Ad. and 
White, is identical with G. coarctatus. 
G. acutus has hitherto been recorded only from the Chinese 
coast, near Macao. 
