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

;542 COLLECTIONS FKOM THE WESTEKN INDIAN OCEAN.This example is a male of moderate size, and resembles the figureof Milne-Edwards *, but differs from those of Hilgendorf t and Hoffmann+, who record this species from Zanzibar and Kossi-Be, inhaving the fingers of the larger chelipede destitute of prominentteeth or denticles ; the fingers are, however, less elongated than in M.-Edwards's figure, based on specimens from Malabar and Samarangthe arm has but a single denticle near the distal end of its anteriormargin. Its recorded range extends eastward to New Caledonia.55. Ocypoda ceratophthalina (Pallas).He des Roches, beach (No. 210), an adult male.This species has been already referred to in the earlier part ofthis lieport (p. 2'37).56. Ocypoda cordimanus, Besmarest.Three adult males are in the collection, obtained respectively atBird Island, Seychelles, African Island, on the beach, and ProvidenceIsland ; also an adult female from the lie des Roches (No. 210).The specimen from Bird Island was found in the interior of theisland.For the distribution of this and the preceding species I mayrefer to my recent revision of the genus §,57. Macrophthalmus parvimanus, Latr. (ined.), M.-Ediu.Mahe Island, beach (No. 196) ; an adult male.This species, hitherto a desideratum in the Museum collection,is remarkable on account of the extreme smallness and slenderness ofthe chelipcdes in the male, which resemble those of the females inmany other species. In the specimen before me the fingers areslightly infiexed and concave on their inner surfaces, but scarcelyexcavated ; the palms have a patch of hair on their inner surface,but apparently no spine.Dr. Richters records this speciev=i (which was originally describedfrom supposed Mauritius examples) from the Eonquets, and M. A,Milne-Edwards from Reunion.58. Euplax (Chaenostoma) boscii (Audouin).Five males and a female lacking thechelipcdes, obtained on thebeach at Mozambique (Nos. 225, 227), are referred to this species,to which also belongs, as I think, a very small male from the RedSea, received from the Godcftroy Museum as Macroplitlialmus dejjressus,Riippeli (No. 16403).* Ann. Sci. JSTat. ser. 3, xviii. p. 148, pi. iv. %. 12 (1852).t Crust, in Van der Deeken's ' Reisen in Ost-Alrika,' p. 84, ]A. iv. fig-. 1(1807).'I In Pollen and Van Dam'spi. iii. iigs. 19-22 (1874).§ Ann. &Mag. Nat. Hist. ser. .5, x. p. 376 (1882).Rechercbes sur la Fauna de Madagascar,' p. 17,