Bivalvia | Pteriida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 27 m (Ref. 83435). Tropical
Western Central Atlantic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 30.0 cm NG male/unsexed; (Ref. 271)
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).
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.
Carpenter, K.E. (ed.). 2002. (Ref. 271)
IUCN Red List Status (Ref. 124695)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 22.8 - 28.2, mean 27 (based on 546 cells).