Report on the zoological collections made in the Indo-Pacific Ocean ...

;CRUSTACEA.. 225One specimen (a male) was obtained at Port Molle, 14 fms.(No. 93) ; in the second collection are an adult female and twosmaller specimens from Thursday Island, 3-5 fms. (Nos. 165, 177).In many of its characters this species resembles P. vespertiJio,but differs in the curious sculpture and less dense hairiness of thecarapace, the prominent teeth of the antero-lateral margins, and theexistence of distinct teeth on the upper margin of the palm (fig. c).In the very remarkable sculpture of the carapace it somewhatresembles P. vermiculaius, A. M.-Edwards*, from New Caledoniabut in that species the vermiculations are much less numerous, thefront is much deflexed and in a continuous line with the upperorbital margin, the teeth of the antero-lateral margins are muchmore obtuse, &c.61. Pilumnus? pugilator ?? Actumnus pugilator, A. M.-Edwards, Nouv. Arch. Mus. Hist, Nat.ix. p. 195, pi. vii. fig. 1 (1873) ;Haswell, Cat. Atistr. Crust, p. 72(18S2).Hero is referred, though with some hesitation, a fine male fromPort ]\Iolle, 14 fms. (No. 93) ; also a male and two females in theBritish-Museum collection, preserved dry, and dredged by Mr. Macgillivraj'in 1 7 fathoms between Percy Island and the mainland, ona bottom consisting of coarse sand and shells. M, A. Milne-Edwardssays that the regions of the carapace in his unique example (obtainedat the island of Lifu) are distinct, whereas in the Australianexamples I have before me scarcely any traces of the interveningdepressions exist : moreover the form of the seriately disposedtubercles of the outer surface of the chelipedes is very peculiar andcharacteristic ; these tubercles are separated, indeed, at their bases,but have their heads dilated and in contact with one another, andthe heads are also armed (usually on one side only) with laterallyprojecting spinules. This disposition cannot be seen except under alens of considerable power, and hence may have been unnoticed byM. A. Milne-Edwards.Mr. Haswell gives Darnley Island as an additional Australianlocality for this species.62. Actumnus setifer.Cancer (Pilumnus) setifer, De Haan, Faun. Japon., Cr. p. 50, pi, ill.fig. 3(1835).Actumnus tomentosus, Dana, Proc. Ac. Nat. Sci. Phil. p. 82 (1852);U.S. Explor. Exped. xiii. Cr. i. p. 243, pi. xiv. fig. 2 (1852) ; A. M.-Edwards, Nouv. Arch. Mus. Hist. Nat. i. p. 285 (1865); Targioni-Tozetti, Crostacei del Viaf/c/io della ^Magenta,'' p. 6(3, pi. ix. figs. 22-24, 26, 29 (1877) Haswell, Cat. Austr. Crust,; p. 73 (1882).Actumnus setifer, A. M.-Edwards, t. c. p. 287, pi. xv. fig. 5 (1865) ;* Nouv. Arch. Mus. Hist. Nat. ix. p. 247, pi. ix. fig. 6 (1873).a