Arcuatula arcuatula   (Hanley, 1843)

Arcuate mussel

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Arcuatula arcuatula  AquaMaps  Data sources: GBIF OBIS
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Arcuatula arcuatula

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

Bivalvia | Mytilida | Mytilidae

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

Benthic.  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: from northwest Indian Ocean, including the Red Sea, to Indonesia; north to Vietnam and south to New Caledonia. Exact distribution of this species is not known, because of confusions with other related mytilid species.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 5.0 cm TL male/unsexed; (Ref. 348); common length : 3.0 cm TL male/unsexed; (Ref. 348); max. reported age: 2.00 years (Ref. 8702)

Short description Morphology

Shell rather small, thin and fragile, somewhat translucent, roughly elongate trapeziform in outline, with very long and rather narrow shape. Anterior margin of valves quite short and sharply rounded, clearly extending forwards beyond the umbones. Ventral margin very long and broadly concave medially. A broad and rounded keel, radiating obliquely towards posteroventral end of valves and bordered anteriorly by a wide and shallow depression determining the sinuation of ventral margin. Outer surface of valves smoothish with only fine concentric growth lines and a few small radial grooves in front of the umbones. Periostracum smooth and shiny, translucent, closely applied to shell surface. Hinge line with very small crenulations, mainly appearing behind the ligamental margin. Anterior adductor scar present. Internal margins very thin and smooth, undulate anteriorly in relation to the outer radial sculpture. Colour: outer coloration variable, light tan to olive-green or brown, often paler on the keel, with a median radial band and sometimes irregular transverse stripes of purplish brown on posterodorsal slope. Interior slightly pearly, pale bluish grey with the outer colour pattern showing through.

Biology     Glossary (e.g. epibenthic)

On soft bottoms, often occurring gregariously. Intertidal and shallow subtidal waters (Ref. 348).

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

Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.

Main reference References | Coordinator | Collaborators

Poutiers, J.M. 1998. (Ref. 348)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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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
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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): 27.1 - 29.3, mean 28.7 (based on 1810 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=1.2; tmax=2).
Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Medium.