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             SHORT 
            DESCRIPTION 
	         
			
				Rostrum triangular, reaching near end of first antennular article. Orbital hoods lacking frontal spine. Large chela 2.3 times as long as broad. Superior margin of chela proximal to dactyl transversely grooved, proximal edge overhanging. Groove extending on inner palm as shallow triangular depression, on outer palm as marked quadrangular depression. Inferior margin of chela deeply notched opposite superior groove. Cheliped merus bearing an acute tooth distally on internal margin. Small chela sexually dimorphic, in male - balaeniceps. Ischium of third pereopod bearing prominent spine. 
			
		 
		
		color :
		carapace and abdomen greyish-green, abdomen with seven longitudinal rows of white spots, tips of pleura with a white spot. Tail fan proximally pale, distally bluish with brown setae. Antennulae, antennae bluish grey. Chelipeds bluish grey, finger tips brown. Pereopods pink.  
		 
		
		common size :
		TL 4 cm. 
		 
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            DISTINGUISHING CHARACTERISTICS 
            
			 
            
			Large cheliped merus armed with spine distally on internal margin, inner lip of notch on upper surface of chela overhanging. Orbital hoods unarmed, autochthonous species with large grooved chela have spinose orbital hoods. 
		 	
		 
			
            BIOLOGY / ECOLOGY 
			 
            
			Poorly known. 
		 
		
		 
		
		habitat : 
		living in burrows among rock and rubble in shallow water; intertidal to 25 m. 
		 
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