Hexactinellida | 
Lyssacinosida | 
Rossellidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Sessile; depth range 30 - 40 m (Ref. 116837).  Polar			
			
			
				
			
			
			
				Antarctic.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm			
			
			
							
				
				
					
						White. Often vase- or pear-shape up to 2 m in height, at least 1 m in width. Conspicuous pores present on surface, especially on inner surface (Ref. 89939).					
				
				
						
			
			
			
			
				
					Commensal with amphipods and other arthropods, pycnogonans, shrimps, starfishes and worms. Long-lived (Ref. 124747) and slow growing (Refs. 89939, 124747).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the class Hexactinellida are hermaphroditic.  Life cycle:  The zygote develops into trichimella larva (free-swimming) before settling down on a substrate where it grows into a young sponge.				
			
			
			
			
			
				Danis, B. 2050 A field guide to Antarctic sponges. Antarctic Field Guide. SCAR-MarBIN and ANTABIF. www.afg.org. (Ref. 89939)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
					  Harmless				
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
  Population dynamicsGrowthMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundance   Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models