120 
THE VOYAGE OF H.M.S. CHALLENGER. 
Actsea granulata (Audouin). 
Cancer granulatus, Audouin, Explic. des Planches in Savigny, “ Egypte,” Crust., pi. vL fig. 2. 
„ ( Actsea ) granulatus, de Haan, Crust, in Siebold, Fauna Japonica, p. 18, 1835. 
Actaza granulata, A. Milne Edwards, Nouv. Archiv. Mus. Hist. Nat., vol. i, p. 275, 1865, et 
synonyma. 
Torres Strait, August, 1874 (an adult male). 
This specimen is of a bright orange colour (in spirit). 
Adult 
Lines, Millims. 
Length of carapace, ...... 
9-5 
Breadth of carapace, about ..... 
6 
13 
A small female is in tlie collection, also obtained in the North Australian Seas, Cape 
York (8 fathoms, Station 186), which can hardly be determined with certainty. It is 
perhaps referable to Actsea hirsutissima (Riippell), although distinguished from the 
typical condition of this species by the less distinctly granulated and areolated carapace. 
It has also much resemblance to Actsea pilosa, Stimpson, from which it is distinguished 
by the less acute fingers of the chelipedes, which are more regularly denticulated on the 
inner margins. 
$ . Lines. Millims. 
Length of carapace, rather over . . . . . 5 11 
Breadth of carapace, . . . . . . . 7J 15 ‘5 
Actsea nodulosa, White. 
Actaza nodulosa, White, Proc. Zool. Soc. Lond., p. 224, 1847 ; Crust. Zool. H.M.S. 
“ Samarang,” p. 39, pi. viii. fig. 4, 1847. 
„ „ A. Milne Edwards, tom. cit., p. 267, 1865. 
An adult female was obtained on the reefs at Honolulu. 
This specilnen (in spirit) is of a bright orange-red colour, and is of larger size than 
either of the typical examples, from the Mauritius, in the collection of the British 
Museum ; its dimensions are as follows : — 
Adult $ . Lines. Millims. 
Length of carapace, about . . . . . . 5|- 11 -5 
Breadth of carapace, about , t . . . . 8| 18 
Actsea nodulosa bears considerable external resemblance to Actsea granulata, from 
which it is at once distinguishable by the much more transverse carapace and the more 
prominent granulated lobes of the antero-lateral margins ; the tubercles of the carapace 
are also granulated, and are not confluent as in Actsea granulata. 
