REPOET ON THE BRACHYURA. 
101 
coloured spots, which are wholly absent from the carapace of the larger male and the 
female ; in the latter the frontal and gastric regions and the sides of the branchial regions 
are of a brick-red colour. 
Adult (J . 
Lines. 
Millims. 
Length of carapace and rostrum, about, 
41 
10 
Breadth of carapace, nearly, .... 
6 
11 
Length of a chelipede, .... 
8 
17 
Length of first ambulatory leg, nearly 
5 
10-5 
Lambrus ( Parthenolambrus ) calappoides (Adams and White). 
Parthenope calappoides, Adams and White, Crust, in Zool. H.M.S. 
“ Samarang,” p. 34, 
fig. 5, 1848. 
„ ,, Miers, Crust, in Rep. Zool. Coll. H.M.S. “ 
Alert,” 
p. 527, 1864. 
A male obtained in 18 fathoms, off Tongatabu (Station 172) is 
referred to 
species. 
Adult 3 . 
Lines. 
Millims. 
Length of carapace and rostrum, ..... 
5 
10-5 
Breadth of carapace, ....... 
61 
13-5 
Length of a chelipede, nearly ..... 
8 
16-5 
Length of first ambulatory leg, ..... 
5 
10-5 
Cryptopodia, Milne Edwards. 
Cryptopodia, Milne Edwards, Hist. Nat. Crust., vol. i. p. 360, 1834. 
„ Miers, Journ. Linn. Soc. Lond. (Zool.), vol. xiv. p. 669, 1879. 
Carapace very broadly triangulate, with very large lateral clypeiform interiorly 
vaulted expansions which completely conceal the ambulatory legs, and are prolonged 
posteriorly far beyond the base of the post-abdomen ; the space between the gastric and 
the cardiac regions is triangular, concave, and defined by four tubercles or eminences, of 
which one is placed on the gastric, one on the front of the cardiac, and one on each 
branchial region. The front is nearly horizontal, subtriangulate, spatuliform and very 
prominent. The pterygostomian regions are smooth, not ridged. The orbits are very 
small, nearly circular, with a narrow fissure in the superior margin. The epistoma is 
well developed ; the antennulary fossettes are narrow and somewhat oblique. The post- 
abdomen, in the male, is five-jointed ; the third to fifth segments coalescent. The eyes 
are very small and retractile. The basal antennal joint is slightly dilated and does not 
nearly attain the apex of the interior subocular lobe of the orbit ; the following joint lies 
within the interior orbital hiatus. The buccal cavity and exterior maxillipedes are small. 
The ischium-joint of the endognath of the maxillipedes is not produced at its antero- 
internal angle ; the merus is distally truncated, with the antero-external angle slightly 
