BY F. E. GRANT AND ALLAN R. McCULLOCH. 49 



The rostrum is large, medianly grooved, sparsely scaly, and 

 armed with a central and three lateral spines, all of which are 

 slender and acute. 



The chelipeds are short, slender, spiny, and clothed with long 

 hairs; the scales are not very distinct. The hand of the female 

 is equal in length to the carapace, and is as long as the rest of 

 the limb. Dactylus much longer than the palm, which is a little 

 longer than the carpus, which is about the same length as the 

 rostrum. The fingers are slender and not armed with prominent 

 teeth, but are finely toothed along the whole of their trenchant 

 margins, which almost meet when closed. 



The ambulatory legs are armed normally and clothed with 

 scattered hairs 



The ischium of the external maxillipeds has both its inner and 

 outer distal angles produced as spines, the anterior ridge has 26 

 sharply pointed denticles. The merus has two prominent spines 

 on its inner margin, and its outer margin is trispinose. All the 

 joints carry scattered hairs. 



This species is readily distinguished from G. australiensis 

 Stimp., which it somewhat resembles, by the broken striae on the 

 anterior half of the carapace as well as by the great length of 

 the fingers. There are four specimens in the Australian Museum 

 from Holborn Island and Port Molle, Q , in all of which these 

 characters are constant. 



The identity of the specimens taken by the "Challenger" is 

 uncertain. They may possibly represent another species, as 

 suggested by Whitelegge. 



Galathka pusilla Henderson. (Plate iv. figs. 5, 5a). 



1885. Henderson, Ann. Mag. Nat. Hist. (5) Vol.xvi. p.407. 

 1888. ,, Rep. Anom. "Challenger," p. 121, pl.xii. figs. 



1, la and 16. 

 1898. Thomson, Trans. N.Z. Institute, Vol. xxxi. p.193, pl.xxi. 



fig-"- 

 1900. Whitelegge, Mem. Aust. Mus. iv. Pt.2, p. 185. 

 Mast Head Island; dredged in 17 fathoms. 



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