46 CRUSTACEA FROM PORT CURTIS DISTRICT, QUEENSLAND, 



This species was fully diagnosed by Whitelegge as far as 

 possible from material taken by the " Thetis," in which unfortu- 

 nately the chelipeds were missing. The second specimen fortu- 

 nately enables us to complete the description. 



Carapace elongate The striations are complete and are clothed 

 with long stiff close-set setse ; there are about eight principal 

 ones and an equal number of finer lines. Lateral margins armed 

 with six spines, the first of which is the largest, reaching to the 

 outer angle of the front. There are a pair of gastric spines and 

 one on each hepatic region. 



The rostrum is long and narrow. It is as long as the gastric 

 region, covered with setose scales, mesially grooved and armed 

 with three lateral spines, of which the central one is long and 

 acute. 



The chelipeds are slender, 2 T 4 ^ as long as the carapace, including 

 the rostrum, covered with pronounced spiniform setose scales and 

 scantily clothed with long hairs, which are thickest between the 

 fingers. The fingers are incurved at the tips, overlapping when 

 closed, and have their inner margins serrate. The dactylus has 

 two large teeth at the base, and the opposing digit has one large 

 basal tubercle followed by a marked excavation. The carpus is 

 shorter than the dactylus, which is scarcely equal to the palm. 



The ambulatory legs are scaly, clothed with long hairs and 

 normally armed. 



The ischium of the external maxillipeds terminates in small 

 spines at its inner and outer borders. The ridge on its anterior 

 surface is armed with 16 denticles. Merus with setose scales, its 

 inner border armed with three spines. The following joints are 

 scaly. 



The nearest ally of this species appears to us to be G. 

 inconspicua Henderson,* from which it differs in the more 

 powerful armature of the rostrum and in the more slender 

 carapace. 



* Henderson, Ann. Mag. Nat. Hist. (5) xvi. p. 408, 1885, and "Challenger" 

 Anomura, p. 122, pl.xii. fig.2, 1888. 



