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Phascolosoma agassizii   Keferstein, 1866

Agassiz'z peanut worm

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Phascolosoma agassizii   AquaMaps   Data sources: GBIF OBIS
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Phascolosoma agassizii
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drawing shows typical fish in this Family.

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

Phascolosomatidea | Phascolosomatida | Phascolosomatidae

Environment / Climate / Range Ecology

Demersal; depth range 0 - 5 m (Ref. 1815).  Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific and the Mediterranean: Korean Peninsula.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 4.0 cm TRKL male/unsexed; (Ref. 1815)

Short description Morphology

Comparatively large animals of grayish yellow color. Body cylindrical. Trunk region 0.4 - 4 cm long. Introvert almost as long as trunk region. Entire body surface densely set with large (0.06 - 0.08 cm) dome-shaped black papillae. Papillae especially numerous on terminal and anal shields. Cephalon bear-ing crown of 21-29 tentacles in horseshoe-like arrangement around heart-shaped nuchal organ. Behind cephalon, introvert bearing specialized cuticular appendages (scalids), arranged into 15-30 circles. Two ventral and two dorsal retractors of introvert. Ventral retractors anchored in posterior third of trunk. Contractile vessel simple, with no lateral branches. Intestine with 10-18 loops, in dependence on animal size. Longitudinal musculature of body wall divided into pronounced, isolated longitudinal bands. Spindle-shaped muscle fastened at terminal end of trunk; 1-3 fixing muscles. Anus located somewhat in front of or level with nephrophores. Wing muscles well-developed. Rectal diverticulum absent. 2 nephridia fastened to body wall along 1/3 of their length via thin mesenterial filaments. Nephridiums 30 - 50 percentage as long as trunk (Ref. 1815).

Biology     Glossary (e.g. epibenthic)

Intertidal and subtidal on vegetation (Ref. 1815). Depth based on occurrence (Ref. 1815); to be replaced with better reference. Subtidal (Ref. 1815).

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

Main reference References | Coordinator | Collaborators

Morozov, T.B. and A.V. Adrianov. 2002. (Ref. 1815)

IUCN Red List Status (Ref. 115185)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

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

Estimates of some properties based on models

Vulnerability (Ref. 71543)
Low vulnerability (10 of 100)
Price category (Ref. 80766)
Unknown