REPORT ON THE BRACHYTJRA. 233 
The largest male presents the following dimensions : — 
Adult £ . 
Lines. 
Millims. 
Length of carapace, rather over, ...... 
5 
11 
Ereadth of carapace, nearly ...... 
6 
12 
Length of a chelipede, ....... 
8* 
18 
Length of second ambulatory leg, nearly, . . . . 
12 
25 
The smallest ova-bearing female measures as follows : — 
Adult ?. 
Lines. 
Millims. 
Length and breadth of carapace, nearly, . 
4-1 
9 
Length of a chelipede, about ...... 
6 
13 
Length of second ambulatory leg, . . . . . 
8* 
18 
A good series of specimens (mostly females) were dredged 
on the A 
gulhas Bank. 
south of Cape Agulhas, South Africa, in lat. 35° 4' 0" S., long, 18° 37 ' 0 " E., in 150 
fathoms (Station 142). 
In this species the male verges are exserted near the margins of the sternum and the 
bases of the fifth ambulatory legs. 
The pubescent body and limbs and the form of the front distinguish Litocheirci 
kingsleyi from the other species referred to this genus. 
R h i z o p i n se. 
Rliizopinee, Stimpson, Proc. Acad. Nat. Sci. Philad., p. 95, 1858. 
This subfamily was established by Dr. Stimpson for certain small genera which resemble 
the Carcinoplacidse in the form of the carapace, whose antero -lateral margins are arcuated, 
and in the characters drawn from the front, orbits and outer maxillipedes, but the antero- 
lateral margins of the carapace are usually entire, rarely dentated, and the post-abdomen 
of the male does not cover the whole width of the sternum at the base (except perhaps 
sometimes in Typhlocarcinus). 
The characters distinguishing this group from the Carcinoplacidse are not invariably 
constant, 1 but the genera referred to it are usually at once recognisable by their small 
size, small orbits, small and deflexed front, and by the arcuated, subentire, antero-lateral 
margins and subparallel postero-lateral margins of the carapace. 
Ceratoplax, Stimpson. 
Ceratoplax, Stimpson, Proc. Acad. Nat. Sci. Philad., p. 96, 1858. 
Carapace transverse, longitudinally convex and nearly smooth on the dorsal surface, 
with the antero-lateral margins arcuated and entire or subentire ; the posterolateral 
1 1 have myself described a species of Carcinoplax ( Carcinoplax Integra ) with entire antero-lateral margins. 
(ZOOL. CHALL. EXP. — PART XLIX. — 1886.) Ccc 30 
