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as wide iu the middle, carpus 1,27 times as long as tlie mero- 

 podite, 4-articulate, the articles 1,34 mm., 0,36 ram., 0,3 mm. 

 and 0,54 mm. long; cheJa just as long as that of Ist pair, twice 

 as long as the 4th segment of the carpus. 



Third and 4th legs about as in O. occidentalis. Proportious of 

 3rd pair: Meropodite 1,42, carpus 1, propodite 0,58. Meropodite 

 4 times, carpus 3 times as long as wide, propodite compressed, 

 twice as long as wide at its base, dactylus as long as the propodite. 

 Propodite friuged with long feathered setae, that occur also on 

 the preceding joints. 



Fourth legs friuged with long feathered setae along both margins, 

 except the dactylus that measures one fourth the propodite; carpus 

 a little more than half as long as the meropodite, propodite as 

 long as the carpus. 



Length of the single specimen collected 18 mm., carapace 5,5 

 ram. long, eye-peduncles 2,4 rara. 



22 



