REPORT ON THE BRACHYURA. 
21 
Southern Australian coast, but without precise indication of locality ; an adult but small 
male from the Arafura Sea (depth not stated), and an adult female dredged in the 
Moluccas Passage, in 825 fathoms (?), in lat. 0° 48' 30" S., long. 126° 58 ' 30" E. 
(Station 196). 
In the latter (deep-water) specimen the lobes of the front are prominent and widely 
separated, and the penultimate joints of the ambulatory legs are rather slender, as in the 
one from the Arafura Sea. 
The South Australian specimen has a more robust and hairy body, and the single 
remaining ambulatory leg (of the first or second pair) has stouter, thicker joints. 
The relative dimensions of the three specimens are appended : — 
Adult J , from South Australia (shallow water). 
Lines. 
Millims. 
Length of carapace and rostrum, .... 
H 
13-5 
Breadth of carapace, ...... 
H 
9-5 
Length of (second ?) ambulatory leg, .... 
14 
30 
Adult $, from the Arafura Sea. 
Lines. 
Millims. 
Length of carapace and rostrum, about .... 
4 
8-5 
Breadth of carapace, ...... 
3 
6-5 
Length of second ambulatory leg, .... 
11 
23-5 
Adult $ , from the Moluccas Passage (825 fathoms). 
Lines. 
Millims. 
Length of carapace and rostrum, .... 
5 
11 
Breadth of carapace, ...... 
4 
8-5 
Length of second ambulatory leg, nearly 
13 
27 
Eurypodius, Guerin-Meueville. 
Eurypodius, Guerin-M4neville, Mem. Mus. Hist. Nat. Paris, vol. xvi. p. 345, 1828. 
„ Milne Edwards, Hist. Nat. Crust., vol. i. p. 283, 1834. 
„ Miers, Journ. Linn. Soc. Lond. (Zool.), vol. xiv. p. 646, 1879. 
Carapace elongate-triangulate, moderately convex and spinose above ; a distinct post- 
ocular but no prseocular spine. Spines of the rostrum contiguous, at least in their basal 
half. Post-abdomen (in both sexes) distinctly seven-jointed. Eyes retractile. 
Antennae exposed and visible in a dorsal view at the sides of the rostrum ; the basal 
joints slender and attaining the front. Merus of the outer maxillipedes distally trun- 
cated and bearing the next joint at its antero-internal angle. Chelipedes in the male 
well developed, with the palm compressed or turgid and the fingers distally acute. 
Ambulatory legs considerably elongated, with the penultimate joints more or less 
dilated and compressed ; the clactyli slightly arcuate, shorter than the penultimate joints 
and reflexible against their inferior margins. 
The described species are of large size, and they are probably varieties of the type 
Eurypodius latreillei, which is especially abundant in the Straits of Magellan and at the 
