Gastropoda | 
Littorinimorpha | 
Calyptraeidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic.  Tropical			
			
			
				
			
			
			
				Circumglobal in warm seas.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm			
			
			
							
				
				
					
						Low conical limpet-like shell, apex is spirally coiled.  Dorsal surface is ray-white with spirally arranged spines or knobby projections.  Ventral surface is purple or black and smooth with distinct cup-like projections (Ref. 3350).					
				
				
						
			
			
			
			
				
									
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Protandrous hermaphrodites, changes from a small male into a full-grown female.  Spawns throughout the year in Kaneohe Bay.				
			
			
			
			
			
				DeFelice, R.C., L.G. Eldredge and J.T. Carlton 2001 Nonindigenous marine invertebrates. p. B-i-B-60. In Eldredge, G.L. and C.M. Smith. A Guidebook of Marine Species in Hawaii. Bishop Museum Technical Report 21. (Ref. 3248)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
  Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
  Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
							
			
			
			
			
			
						
						
						
			
									
						Price category  					
					
					Unknown.