1900.] PEOM THE SOUTH PACIFIC. 581 



Genus Pilumnus Leach, 1815. 



25. ? Pilumnus hiesutus Stimps., 1858. (Plate XLII. fig. 9.) 



Pilumnus hirsutus, Stimpson, Proc. Ac. 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 peunosus Whitelegge, 1897. 



Pilumnus prunosus, Whitelegge, Mem. Austral. Mus. iii. 2, 

 p. 133, pi. vi. fig. 1 (1897). 



Funafuti ; seven males, two females. 



27. Pilumnus botumanus, 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 joint from the end of its 

 upper edge; hands slender, fingers grooved outside, a spine in 

 front of the wrist and one on 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. 



Rotuma ; one female. 



Subfamily Xanthine. 

 Genus Cymo de Haan, 1833. 



28. Cymo andkeossyi (Aud.), 1826. 



Pilumnus andreossyi, Audouin, Savigny's ' 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). 



Rotuma ; one female. 



Var. melanodactylus Dana, 1852. 



Cancer (Cymo) melanodactylus, de Jiaan, Faun. Japon., Crust, 

 p. 22(1833).' 



