Colpomenia peregrina Sauvageau 1927

Publication Details
Colpomenia peregrina Sauvageau 1927: 321, figs 1-8

Published in: Sauvageau, C. (1927). Sur le Colpomenia sinuosa Derb. et Sol.. Bulletin de la Station Biologique d'Arachon 24: 309-355, 8 figs.

Type Species
The type species (holotype) of the genus Colpomenia is Colpomenia sinuosa (Mertens ex Roth) Derbès & Solier.

Status of Name
This name is of an entity that is currently accepted taxonomically.

Type Information
Syntype localities: Various in Atlantic Europe; (Silva & al. 1996: 627) Lectotype: PC; herb. Sauvageau (Womersley 1987: 298) Notes: Womersley (1987: 298) gives the following data for Colpomenia peregrina (Sauvageau) Hamel 1937: Type from Brittany, France; in Herb. Sauvageau, PC. Green et al. (2012: 643) also cite Brittany, France as the type locality. Type locality: Morbihan, France (Dy et al., 2022: table 1).

Origin of Species Name
Adjective A (Latin), foreign; wandering, travelling about; exotic strange (Brown 1946).

General Environment
This is a marine species.

Created: 31 March 1996 by M.D. Guiry.

Last updated: 17 October 2024

Verification of Data
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Nomenclatural note
This taxon was proposed with alternative names (Colpomenia peregrina Sauvageau and Colpomenia sinuosa var. peregrina Sauvageau), with neither being preferrred (Pedroche et al. 2008:64). Because publication was effected prior to 1 January, 1953, both names are valid (ICBN Art. 34.2 "When, on or after 1 January 1953, two or more different names based on the same type are proposed simultaneously for the same taxon by the same author (so-called alternative names), none of them is validly published."; Silva, Basson & Moe, 1996: 627), and thus the correct nomenclatural citation, if the species status is preferred, is Colpomenia peregrina Sauvageau. Many authors, including Womersley (1987: 298), Vandermuelen (1998), and John et al. (2003) give the authorities for this species as (Sauvageau) Hamel, as if Hamel (1937) had raised the varietal name of Sauvageau to a species; in fact, however, C. peregrina (Sauvageau) Hamel is an illegitimate later homonym of C. peregrina Sauvageau. - (11 May 2006) - M.D. Guiry

Distributional note
This species spread from Atlantic France to Britain around 1907, first appearing in Cornwall and Dorset (Cotton 1908, as C. sinuousa). It appears to have been introduced to Atlantic France from the Pacific coast of North America (Minchine 1991) with juvenile American oysters Crassostrea virginica. The migration from France to Britain is said by some to have been natural, but it may also have been introduced unintentionally with commercial oysters. In Ireland, it grows rapidly spring, reaching the size of a football very quickly in some favourable places. It has spread throughout Britain from southern England in 1907 to the Isle of Man by 1923, the Outer Hebrides by 1936 and the Orkneys by 1940, marginally by natural means. It appeared in Ireland in the 1940s, and has rapidly spread since (Minchin 1991). It is now distributed widely throughout Britain and Ireland although populations are more extensive, and mature plants larger on western coasts. This species is reported as being introduced into the Mediterranean (Verlaque et al. 2015: 97), being first found in the Etang de Thau (France) in 1918. - (11 May 2006) - G.M. Guiry

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 17 October 2024. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 January 2025

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