LAND CRUSTACEANS. 67 



found in various situations, generally taking advantage of the shelter of some object. It 

 often hides under timber, where, as Dr Alcock remarks', its greenish mottled coloration is 

 protective. De Man records'' some examples of this species from a stream in Flores, but 

 it is certainly not restricted to the water, nor even to particularly damp spots. With the 

 exception of Geor/rapsus longitarsis, all the above crabs are included by Major Alcock among 

 the Indian Fauna'. 



The land hermit-crabs (genus Coenobita) are no less numerous than the true crabs on 

 Minikoi. Three species are found — C. perlatus H. M.-Edw., C rugosus H. M.-Edw. and C. 

 clypeatus Latr. Of these the first two show a preference for the neighbourhood of salt 

 water, while the third is chiefly to be found in the jungle. I shall return, later on, to 

 the subject of the genus Coenobita. 



Three species of Isopod make up the tale of Minikoi land Crustaceans to twelve. Two 

 woodlice, belonging respectively to the genera Cubaris and Philoscia, are found, as might 

 be expected, in rotten timber and loose earth, while a Ligia {L. exotica Roux) lives in 

 certain localities along the lagoon shore, and is chiefly conspicuous in running about on boats 

 drawn up on the beach. 



The following is a complete systematic list of the land Crustacea of Minikoi : — 



DECAPODA, BRACHYURA, CATOMETOPA. 



Family Ocypodidae. Genus Ocypode, Fabr., 1798^ 



1. Ocypode ceratophthalma (Pallas), 1772. 



Cancer ceratophthalmus, Pallas, Spicilegia Zool. ix. p. 83, pi. v. figs. 7, 8 (1772). 

 Ocypoda ceratophthalma, Ortmann, Zool. Jahrb. Syst. X. p. 36.5 (1897) [synonyms] ; 

 Alcock, Journ. As. Soc. Bengal lxix. ii. 3, p. 34.5 (1900). 



2. Ocypode cordimana Desm., 1825. 



Ocypoda cordimana, Desmarest, Consid. gen. Crust, p. 121 (1825); Ortmann, Zool. 

 Jahrb. Syst. x. p. 362 (1897) [synonyms]; Alcock, Journ. As. Soc. Bengal lxix. 

 ii. 3, p. 349 (1900). 



Family Grapsidae. Genus Geograpsus, Stimps., 1858. 



3. Geograpsus grayi (H. M.-Edw.), 1853. 



Grapsus grayi, H. Milne-Edwards, Ann. Sci. Nat. Zool. (3) xx. p. 170 (1853). 

 Geograpsus grayi, Alcock, Journ. As. Soc. Bengal LXIX. ii. 3, p. 395 (1900) 

 [sj-Tionyms]. 



4. Geograpsus crinipes (Dana), 1851. 



Grapsus crinipes, Dana, Proc. Ac. Philad. 1851, p. 101. 



Geograpsus crinipes, Alcock, Journ. As. Soc. Bengal LXix. ii. 3, p. 396 [synonyms]. 



1 Alcock, op. cit., p. 428. that Fabricius spelt this name Ocypoda. In the copies of the 



2 De Man, Max Weber's " Reise 0. I. " ii. p. 350 (1892). Ent. Syst. Suppl. in the Cambridge University and Zoological 



3 Alcock, op. cit., passim. Society's Ubraries the spelling is Ocypode. 

 * Ortmann [Znol. Jahrb. Syst. x. p. 359 (1897)] states 



9—2 



