.. 9-8 



97 



.. 9-8 



9-8 



.. 9-8 



9-8 



•■ 5-0 



5-0 



22"0 



21-5 



•• 7-5 



73 



2-0 



1-9 



240 ZOOLOGY OF THE FAR EAST. 



pairs is about five-sixths the length of the propodus, that of the last pair is longer, 

 almost equal to the length of the propodus. On all the legs there are conspicuous 

 slender spinules, not very thickly set, on the carpus, propodus and dactylus ; each 

 spinule is dark brown basalty and white distally. 



The abdomen of the male is broad and closely resembles that of 5. sylvicola. 

 In colour the carapace of the specimens is of a very dull reddish brown ; the 

 chelipedes are pale yellow suffused with pale red on the carpus and palm ; the walk- 

 ing legs are deep brown with a fine mottling and dark chromatophores are thickly 

 sprinkled on the abdomen. 



The species is described from two males which yield the following measurements 

 (in mm): — 



Length of carapace 



Breadth of carapace between outer orbital angles 



Breadth of carapace at base of 3rd walking legs 



Breadth of front . . 



Length of penultimate walking legs 



Length of merus of penultimate walking legs 



Breadth of merus of penultimate walking legs 



The species differs from all the allied forms described by de Man in his Report 

 on Max Weber's expedition to the Dutch East Indies in the shape of the carapace, 

 which is not wider behind than in front; it is allied to S. sylvicola, from Sumatra, but 

 in addition to the form of the carapace, differs in the tuberculation of the chelae, 

 in the blunter epibranchial teeth and more slender merus of the walking legs. It is 

 also closely related to S. ocypoda, Nobili ^, from Sumatra, from which it differs in the 

 form of the carapace, in the number of denticles on the dactylus of the chela and 

 in the proportions of the meropodites of the walking legs. Its nearest ally, however, 

 is perhaps S. aranea, Nobili,'^ from Nias, in which the carapace is described as "per- 

 fettamente quadrato " ; this species is smoother than S. foxi, the tuberculation on the 

 outer face of the chela is obsolete inferiorly and the merus of the walking legs is less 

 slender. 



The specimens obtained by Mr. Buxton, the types of the species, were found on 

 Gunong Raya in Langkawi I, at a height of 2000 ft. They were collected in moist 

 places under stones or rotten wood at some distance from any stream. At Mr. Bux- 

 ton's request I have named the species after Mr. Fox of Langkawi I. 



The types of the species are in the Indian Museum, where they bear the number 



9457/10- 



Sesarma sp. ? 



I do not venture to name three small specimens of Sesarma obtained by Dr. Annan- 

 dale on Penang Hill in the island of Penang at a height of 1200 ft. The specimens are 

 all young ; the carapace of the largest is only 75 mm. in length and its chelae do not 

 appear to have assumed their adult form. 



I Nobili, Ann. Mus. Civ. Genova (2), XX, p. 513. 2 Nobili, ibid., p. 510. 



