Alaysia spiralis   Southward, 1991


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Alaysia spiralis  AquaMaps  Data sources: GBIF OBIS
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No drawings available for Siboglinidae.

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Polychaeta | Sabellida | Siboglinidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Sessile.  Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Central Pacific: Lau Back Arc Basin.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the class Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.

Main reference References | Coordinator | Collaborators

Southward, E.C. 1991. (Ref. 7823)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 2.7 - 5.5, mean 3.6 (based on 158 cells).
Price category (Ref. 80766): Unknown.

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