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Show 1900.] FROM THE SOUTH PACIFIC. 581 Genus PILUMNUS Leach, 1815. 25. ? PILUMNUS HIRSUTUS Stimps., 1858. (Plate XLII. fig. 9.) Pilumnus hirsutus, Stimpson, Proc. A c N. Sci. Philad. 1858, p. 37; Alcock, Journ. As. Soc. Beng. lxvii. 2, i. p. 197 (1898). Owing to this species never having been figured, I am in some doubt as to whether the present specimens are rightly identified. The figure now given will, I hope, serve to clear up the difficulty. Fiji; ten males, thirteen females. 26. PILUMNUS PRUNOSUS Whitelegge, 1897. Pilumnus prunosus, Whitelegge, Mem. Austral. Mus. iii. 2, p. 133, pi. vi. fig. 1 (1897). Funafuti; seven males, two females. 27. PILUMNUS ROTUMANUS, n. sp. (Plate XLI. fig. 6.) Diagnosis: " A Pilumnus with the carapace smooth, the areas fairly well delimited, covered with a fine fur and long hairs ; no tubercles on the carapace or limbs except a few obsolete ones on the outside of the wrist; antero-lateral edge with 3 sharp teeth, the first two procurved, the last shorter and straighter ; the outer angle of the orbit sharp but not a tooth; the rim of the orbit with two distinct notches, above and below the outer angle, and also a distinct notch on the upper rim ; no subhepatic spine; limbs slender, covered with long hair ; chelipeds subequal; walking-legs with a spine at the end of the merus and one at a distance of about one third of the length of the joiut from the end of its upper edge; hands slender, fingers grooved outside, a spine in front of the wrist and one ou the upper edge of the arm." Breadth of fronto-orbital border : greatest breadth : : 3 : 4. Length on middle line somewhat less than greatest breadth. Length, 17 mm. Colour in spirit, white. Botuma; one female. Subfamily XANTHINE. Genus C Y M O de Haan, 1833. 28. C Y M O ANDREOSSYI (Aud.), 1826. Pilumnus andreossyi, Audouin, Savigny's 4 Egypte,' p. 86, pi. v. fig. 5 (1826). Cancer (Cymo) andreossyi, de Haan, Faun. Japon., Crust, p. 22. Cymo andreossyi, Dana, U.S. Expl. Exped., Crust, i. p. 225, pi. xiii. fig. 2 (1852); Alcock, Journ. As. Soc. Beng. lxvii. 2, i. p. 173 (1898). % Botuma; one female. Var. MELANODACTYLUS Dana, 1852. Cancer (Cymo) melanodactylus, de Haan, Faun. Japon., Crust. p. 22 (1833). |