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Lepas anatifera

(Duck Barnacle, Pelagic Goose Barnacle, Pelagic Goosneck Barnacle)

Common Names

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Common Names in English:

Duck Barnacle, Pelagic Goose Barnacle, Pelagic Goosneck Barnacle

Description

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Physical Description

Species Lepas anatifera

This gooseneck barnacle (attached by a fleshy stalk ) has a flattened capitulum with only 5 plates . Attaches to floating objects such as driftwood, glass, or plastic. It has no notch on the side that borders the scutum. The plates are covered with fine striations .

This seems to be the most common pelagic gooseneck barnacle along the Washington coast. The opening of this barnacle is lined with beautiful scarlet tissue . The peduncle (stalk) is purplish-brown.

Habitat

Pelagic , attached to floating wood and debris . Depth Range : Shallow pelagic, usually within a meter of the surface attached to a floating object.

Biology

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Reproduction

Reaches sexual maturity when the capitulum is about 2.5 cm across. Fertilization is internal. Young are brooded in a mass attached to the mantle wall. Nauplii are released after about a week.

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 27-Dec-2004

Similar Species

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Mitella polymerus, the other goosneck barnacle commonly found intertidally, has more than 10 plates in the capitulum and attaches to rocks. Lepas pacifica has a notch on the side of the capitulum that borders the scutum. Lepas hilli has smooth plates and 3 or more filamentous growths from the base of the first cirri.

Members of the genus Lepas

There are approximately 27 species in this genus:

L. anatifera (Duck Barnacle) · L. anserifera (Goose Barnacle) · L. ansifera · L. australis · L. balanus · L. cassis · L. coerulescens · L. cypris · L. ehren sverdiana · L. fascicularis · L. foliacea · L. fungites · L. gallorum · L. hilli · L. hillii · L. miocoenicus · L. nauplii · L. pacifica · L. pectinata · L. pectinata pacifica · L. plicata · L. scalpellum · L. stroemia · L. sulcata · L. testudinata · L. virgata · L. vitrea

Bibliography

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More Info

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal March 05, 2008:

Identifiers

Last Revised: 2008-10-02