Arca ventricosa   Lamarck, 1819

ventricose ark
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Image of Arca ventricosa (ventricose ark)
Arca ventricosa
Picture by Batoy, Corazon B.

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

Bivalvia | Arcoida | Arcidae

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

Benthic; depth range 0 - 20 m (Ref. 348).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific: East Africa to Red Sea and Polynesia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 9.0 cm TL male/unsexed; (Ref. 348); common length : 7.0 cm TL male/unsexed; (Ref. 348)

Short description Morphology

Shell equivalve, thick and inflated, very inequilateral, posteriorly expanded. Shape somewhat irregular, elongate rectangular in outline, with strongly protruding umbones anteriorly and a broad rounded keel from umbones to posteroventral margin. Posterior margin obliquely truncate, ventral margin slightly sinuous with a well-developed byssal gape. Cardinal area wide and riblets crossed by irregular growth marks, and a few larger radial ribs on posterodorsal slope. Periostracum coarsely pilose, mainly persisting towards shell margins. Hinge straight very long and narrow. Internal margins smooth. Colour: Outside of shell often encrusted with marine growths; posterior half dark brown, anterior half creamy white with zebra-like brown stripes. Inner side more or less strongly tinged with dark brown.

Biology     Glossary (e.g. epibenthic)

Found in reef areas of lagoons (Ref. 97298). Fixed on rocks, corals, or under stones. Littoral to sublittoral waters to a depth of 20 m (Ref. 348). 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 (Ref. 833).

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. 120744)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses

Fisheries: commercial
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More information

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 | | Google Books | Google Scholar | Google | ispecies | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.2 - 29.2, mean 28 (based on 4316 cells).
Vulnerability (Ref. 71543)
High vulnerability (58 of 100)
Price category (Ref. 80766)
High