REPORT ON THE BRACHYURA. 
333 
longer than the carpus, slightly compressed, and shorter than the fingers, which ace 
slender, scarcely denticulated on the inner margins and are slightly decussate at the 
acute apices. The legs of the second and third pairs (in the typical form) are greatly 
elongated and very slender, with the joints smooth, the dactyli slightly curved, and 
exceeding the penultimate joints in length. Those of the fourth and fifth pairs are (in 
the typical variety) nearly filiform ; the dactyli very short. The body and limbs are 
covered with an extremely short brownish or whitish pubescence. 
Of this species two very distinct varieties were collected ; the first represented by 
two adult males and two females, at Station 207, near the Philippines, in 700 fathoms, 
lat. 12° 21' 0" N., long. 122° 15' 0" E., the second by three adult females, dredged in 
800 fathoms, in the Arafura Sea, Station 191, lat. 5° 41' 0" S., long. 134° 4' 30" E., and 
by an adult and larger female obtained in the Banda Sea, in 1425 fathoms, lat. 
4° 21' 0" S., long. 129° 7' 0" E. (Station 195). 
The first-mentioned variety was selected for description because there are males of 
it ; the second variety is distinguished by the more dilated bases of the antennules, the 
slightly tapering, not cylindrical, eye-peduncles, and the more robust chelipedes and 
ambulatory legs. I propose to designate it var. vobusta. 
Adult $ . 
Lines. 
Millims. 
Length and breadth of carapace, 
a 
9-5 
Length of a chelipede, nearly 
8 
16-5 
Length of third leg, . 
19 
40 
Length of fourth leg, nearly . 
6 
12 
The adult female specimen of the variety robusta, from 1425 fathoms (Station 195), 
which only differs from the specimens 
taken in 800 fathoms (Station 
191) in the 
slightly more convex carapace, with more 
deeply accentuated 
sutures and the somewhat 
shorter exterior orbital spines, measures as 
Adult ?. 
! follows : — 
Lines. 
Millims. 
Length and breadth of carapace, nearly 
n 
15-5 
Length of a chelipede, 
ii 
23 
Length of third ambulatory leg, nearly 
251 
53-5 
Length of fourth ambulatory leg, about 
11 
23 
Cymopolia, Roux. 
Cymopolia, Roux, Crust, de la Mediterranee, pi. xxi., 1828. 
„ Milne Edwards, Hist. Nat. Crust, vol. ii. p. 158, 1837. 
Of this genus I have only examined three species, Cymopolia caronii, Roux, Cymo- 
polia jukesii, White, and Cymopolia whitei, Miers, the numerous species recently 
described by A. Milne Edwards being unrepresented in the collections of H.M.S. 
