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Image of milky-white ark
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Milky White Ark

Striarca lactea (Linnaeus 1758)

Biology

provided by World Register of Marine Species
Type of larval development: not documented [inferred from prodissoconch morphology to be short planktonic, non-planktotrophic]
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cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Gofas, Serge [email]

Diagnosis

provided by World Register of Marine Species
Shell solid, quadrangular in outline, quite swollen, slightly inequilateral, up to 15 mm. An obtuse keel runs from the umbo to the posteroventral end. Umbos swollen, quite separate, separated from the hing line by a triangular ligamental area covered by a brown layer of the ligament. Exterior with very fine, granulose radial ribs and clear growth stages. Colour white, covered with a yellowish periostracum which forms a few scattered hairs in the vicinity of the ventral edge.
license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Gofas, Serge [email]

Distribution

provided by World Register of Marine Species
Eastern Atlantic, from the English Channel to Mauritania, also Canary and Cape Verde Islands; Mediterranean. Additional populations in Western and Southern Africa are considered as distinct subspecies. Gorringe seamount, rare in 70-360 m.
license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Gofas, Serge [email]

Habitat

provided by World Register of Marine Species
Known from seamounts and knolls

Reference

Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.

license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
[email]