Atrina rigida, Stiff pen shell : fisheries

Atrina rigida   (Lightfoot, 1786)

Stiff pen shell

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Atrina rigida  AquaMaps  Data sources: GBIF OBIS
Upload your photos 
 All pictures | Google image |
Image of Atrina rigida (Stiff pen shell)
Atrina rigida

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

Bivalvia | Ostreida | Pinnidae

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

Benthic; depth range 0 - 27 m (Ref. 83435).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Central Atlantic.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 30.0 cm NG male/unsexed; (Ref. 271)

Short description Morphology

Diagnostic features: Shell large, fan-shaped, triangular. Surface sculpture of about 15 narrow radial ribs separated any larger interspaces; ribs bearing regularly spaced, fluted spines. Large muscle scar inside shell touches border of nacreous area. Hinge area straight, representing larger side of triangular shell outline. Byssus at pointed extremity anchors penshell into seagrass bottom. Gaping shorter side of triangular shell outline oriented upward. Colour: dark olive brown; mantle colour bright golden orange. Fisheries: Commercially exploited in and around Campeche, Mexico. Consumed locally in soups, marinated, or grilled (Ref. 271).

Biology     Glossary (e.g. epibenthic)

Habitat: Found in shallow-water seagrass beds. Behavior: Burrows in fine sand leaving only a broad posterior region exposed to the outside environment. Predator: horse conch, Pleuroploca gigantea (Ref. 271).

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

Carpenter, K.E. (ed.). 2002. (Ref. 271)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource |

Tools

E-book | Field guide

More information

Trophic Ecology
Food items (preys)
Diet composition
Food consumption
Predators
Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Pictures
References
References

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): 22.8 - 28.2, mean 27 (based on 546 cells).
Fishing Vulnerability (Ref. 71543): Low vulnerability (20 of 100).
Price category (Ref. 80766): Unknown.

Comments & Corrections
Back to Search
Random Species
Back to Top