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

550 COLLECTIONS FROM THE WESTER5 INDIAN 0CE4N,The single example was collected at Proyidence Island, 24 fms.(No. 215).It only differs from Eiippell's figure {t.c. p. 17, pi. iv. fig. 3) inthe somewhat broader carapace and shorter granulated chelipedes,and I do not venture, therefore, to separate it as a distinct species.Ehalia granulata has been hitherto a desideratum in the Museumcollection. Originally described by Iliippell as Nursia granulata*,it was retained as a doubtful member of that genus by Milne-Edwardst, who had seen no specimens. Prof. T. Bell, in his monographof the family J, makes no mention of the species; but it isincluded by Von Martens in his conspectus of the East-African Cru&-tacea§, who refers to it as Ehalia (jrairuJata.The nearest ally to this species with which I am acquainted isEbalia miliaris, A. M.-Edwards||, a species from Upolu, SamoaIslands, which is only very briefly characterized, but which differsin the shorter dactyli of the chelipedes and the much more robustambulatory legs. Elxdia orientalis, Kossmann^, from the Red Sea,differs altogether in the form of the carapace, which is subrhomboidal,with deep concavities behind the antero-lateral margins.72. Calappa hepatica (Linn.).Mozambique, beach (jN^o. 224) ; an adult male.This very common species has been referred to in the precedingpart of this <strong>Report</strong> (p. 257).73. Calappa gallus (Merbst), var. hicornis.This variety is so nearly allied to the typical Calappa gallus(Herbst), with which I believe the "W. -Indian C. galloides, Stimpson,to be identical, that it will suffice here to point out the charactersby which the specimens in the Museum collection may always bedistinguished. The rostrum is not, as in the ordinary condition ofC. gallus, entire and obtuse or very slightly excavate at its distalend, but is deeply emarginate, so as to consist of two distinct lobesor spines, on the outer side of each of which there is a smallertooth, which tooth is, however, sometimes distinguishable in thetypical C. gallus ; the upper margins of the orbits are denticulated,not smooth as in the typical form, the tubercles of the carapace areusually more conical and acute. It may not improbably prove tobe a distinct species.* Beschreib. 24 kurzschw. Krabben des rotben Meeres, p. 17, pi. iv. fig. 3(1830).t Hist. Nat. des Crust, ii. p. 138 (1837).J Ti-ans. Linn. Soc. xxi. pp. 277-313 (1855).§ In Von der Deeken's Reisen in Ost-Afrika, iii. (1) p. 110 (1869).Journ. Mus. Godeffroy, iv.IIp. 85, pi. xiii. fig. 2 (1873).^ Malacostraca, in Zoolog. Ergebn. rotb. Meeves, i. p. Go, pi. i. fit;. 6, pi. iii.fig. 16 (1877).