Malacostraca | 
Decapoda | 
Grapsidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic.  Tropical; 35°N -   28°S, 36°E -   177°W			
			
			
				
			
			
			
				Indo-West Pacific.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 5.0 cm CL male/unsexed; (Ref. 107481); 5.914 cm CL (female)			
			
			
							
				
				
					
						Carapace rounded; front straight, entire; anterolateral margins rounded, each with 1 tooth; lateral regions with numerous oblique striae.  Fingertips strongly spooned.  Color:  carapace with green and white transverse markings.					
				
				
						
			
			
			
			
				
					Common species on exposed rocky shores, observed in large populations (Ref. 106287).  Also caught by special nets (343). Found out of the water, on rocks in the splash zone (Refs. 343, 127957) and in the infratidal zone (Ref. 3565).  Intertidal on rocky shores and reef tops exposed to wave action (Ref. 801), and mudflats (Ref. 128960).  Restricted to offshore islands.  Key species for healthy exposed rocky shores (Ref. 801).  Herbi-/omnivorous (Refs. 127957, 128960).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the order Decapoda are mostly gonochoric.  Mating behavior:  Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.  				
			
			
			
			
			
				Ng, P.K.L. 1998 Crabs. p. 1045-1155. In K.E. Carpenter and V.H. Niem (eds) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 2. Cephalopods, crustaceans, holothurians and sharks. Rome, FAO. 1998. pp. 687-1396. (Ref. 343)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
					  Poisonous to eat (Ref. 130551)				
			 
			
			
			
			
			
			
			
				Human uses  
			
			
				Fisheries: subsistence fisheries			
			
			
				 | FishSource | 			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 25 - 29.3, mean 28.3 (based on 2785 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.