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Nemalion elminthoides (Velley) Batters

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Nemaliophycidae
Order Nemaliales
Family Nemaliaceae
Genus Nemalion

Pictures

click on thumbnail for larger version.

Nemalion elminthoides (Velley) Batters
Skilly, Cornwall, England. David Fenwick. © David Fenwick.

Nemalion elminthoides (Velley) Batters
Skilly, Cornwall, England. David Fenwick. © David Fenwick.

Nemalion elminthoides (Velley) Batters
Skilly, Cornwall, England. David Fenwick. © David Fenwick.

Nemalion elminthoides (Velley) Batters
Skilly, Cornwall, England. David Fenwick. © David Fenwick.

Nemalion elminthoides (Velley) Batters
Skilly, Cornwall, England. David Fenwick. © David Fenwick.

Nemalion elminthoides (Velley) Batters
24 Oct 2014. Bridgette Clarkston. © 2014 Bridgette Clarkston.

Nemalion elminthoides (Velley) Batters
Nemalion helminthoides, upper intertidal, North of Galicia, Spain, 2013, Ignacio Bárbara" . Ignacio Bárbara. © Bárbara (barbara@udc.es).

Nemalion elminthoides (Velley) Batters
Nemalion helminthoides, upper intertidal, North of Portugal, Spain, 2013, Ignacio Bárbara. Ignacio Bárbara. © Bárbara (barbara@udc.es).

Nemalion elminthoides (Velley) Batters
Tor Bay Provincial Park, Nova Scotia. 17 Aug 2013. D.J. Garbary. © D.J. Garbary.

Nemalion elminthoides (Velley) Batters
Tor Bay Provincial Park, Nova Scotia. 01 Jan 0001. D.J. Garbary. © D.J. Garbary.

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49 Found - Displaying 1 through 10

 

Polysiphonia muelleriana J.Agardh

Nemalion elminthoides (Velley) Batters Spain; section of thallus showing cortex and medulla
© Ignacio Bárbara (barbara@udc.es)

Publication details
Nemalion elminthoides (Velley) Batters 1902: 59

Published in: Batters, E.A.L. (1902). A catalogue of the British marine algae being a list of all the species of seaweeds known to occur on the shores of the British Islands, with the localities where they are found. Journal of Botany, British and Foreign 40(Supplement): 1-107.
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Type species
The type species (holotype) of the genus Nemalion is Nemalion lubricum Duby.

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

Basionym
Fucus elminthoides Velley

Type information
Type locality: "Grows in abundance upon the rocks off the Beal, at the extremity of Portland [Dorset, England], at very low water. June. July. ... Major Velley." (Withering 1792: 255). Lectotype: LIV (Womersley 1994: 81). Notes: Batters (1902: 59) "e spec. auth. in Herb. Kew.", which could be considered a lectotypification so that the lectotype would be a specimen in BM-K.

Homotypic Synonym(s)
Fucus elminthoides Velley 1792
Ulva elminthoides (Velley) Withering 1796
Palmella elminthoides (Withering) S.F.Gray 1821

Heterotypic Synonym(s)
Alcyonidium nemalion (Bertoloni) Bory
Ulva rubra Hudson 1778
Chaetophora rubra (Hudson) C.Agardh 1812
Fucus nemalion Bertoloni 1818
Chordaria nemalion (Bertoloni) C.Agardh 1820
Mesogloia hudsonii C.Agardh 1824
Rivularia rubra (Hudson) Wahlenberg 1826
Mesogloia bertolonii Moris & De Notaris 1839
Mesogloia rubra (Hudson) Areschoug 1840
Nemalion bertolonii (Moris & De Notaris) Meneghini 1841
Nemalion hudsonii (C.Agardh) Chauvin 1842
Helminthora nemalion (Bertoloni) Kützing 1843
Mesogloia nemalion (Bertoloni) Solier 1845
Nemalion multifidum var. simplex Harvey 1846
Dudresnaya nemalion (Bertoloni) Trevisan 1848

Nomenclatural notes
According to Athanasiadis (2016: 142): "Originally spelled elminthoides, ... but as the first letter is aspirated it has to be written helminthoides - h standing for the spiritus asper. However, Art. 60.3, clearly says "The liberty of correcting a name is to be used with reserve, especially if the change affects the first syllable and, above all, the first letter of the name." - (1 Feb 2017) - M.D. Guiry

Taxonomic notes
In making the combination Chaetophora rubra, based on Ulva rubra Hudson, C. Agardh (1812) cites Rivularia multifida Weber & Mohr 1804 as a synonym which led authors to regard this entity as a Nemalion. If it does indeed represent this entity, Ulva rubra may be an early name for a species of Nemalion; however, Hudson's material from the south coast of England has not been re-examined. - (24 Jun 2014) - M.D. Guiry

General environment
This is a marine species.

Common names

(as Nemalion elminthoides (Velley) Batters)
English: Threadweed (Madlener 1977), Sea Noodles (Chapman & Chapman 1980), Sea Noodle (Bunker et al. 2010).

Japanese: Umisomen, Tsukomo Nori (Madlener 1977).

Description
Cylindrical, reddish to purple brown, softly gelatinous thallus, simple or sparingly dichotomously branched, to 2 mm wide, to 250 mm long, with discoid base.

Habitat
World-wide on temperate coasts during summer (Womersley 1994: 81). Summer annual (May or June-September or October) on exposed rocky shores, generally growing on barnacles and limpets in the lower intertidal, locally common on southern and western shores, rare and local on east coasts.

Similar species
Helminthocladia calvadosii (Lamouroux ex Duby) Setchell is a relatively rare subtidal species found on western and southern shores of Ireland and Britain. It is generally larger and broader than Nemalion and more profusely and irregularly branched. Helminthora divaricata is more profusely branched and is an epiphyte of Polyides rotundus.

Detailed distribution with sources (Click to Load)

Key references
Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. I. pp. [i]-xxxxviii, 1-762. Thessaloniki: Published and distributed by the author.

Boraso de Zaixso, A.L. (2013). Elementos para el estudio de las macroalgas de Argentina. Con colaboración de J.M. Zaixso. pp. [1]-204. Comodoro Rivadavia: Universitaria de la Patagonia.

Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, pls 1-266 (colour photographs). Ruggell: A.R.G. Gantner Verlag.

Dixon, P.S. & Irvine, L.M. (1977). Seaweeds of the British Isles. Volume 1. Rhodophyta. Part 1. Introduction, Nemaliales, Gigartinales. pp. [i]-xi, [1]-252, 90 figs. London: British Museum (Natural History).

Hollenberg, G.J. & Abbott, I.A. (1966). Supplement to Smith's marine algae of the Monterey Peninsula. pp. [i]-ix [xii], [1]-130, 53 figs. Stanford: Stanford University Press.

Huisman, J.M. & Womersley, H.B.S. (2006). Nemalion. In: Algae of Australia. (Huisman, J.M. Eds), pp. 77-78. Canberra: Australian Biological Resources Study.

Lindeberg, M.R. & Lindstrom, S.C. (2010). Field guide to the seaweeds of Alaska. pp. [i-]iii-iv, 1-188, numerous col. photographs. Fairbanks: Alaska Sea Grant College Program.

Loiseaux-de Goër, S. & Noailles, M.-C. (2008). Algues de Roscoff. pp. [1]-215, col. figs. Roscoff: Editions de la Station Biologique de Roscoff.

Nelson, W.A. (2013). New Zealand seaweeds. An illustrated guide. pp. [1]-328. Wellington: Te Papa Press.

Rodríguez-Prieto, C., Ballesteros, E., Boisset, F. & Afonso-Carrillo, J. (2013). Guía de las macroalgas y fanerógamas marinas del Mediterráneo occidental. pp. [1]-656. Barcelona: Ediciones Omega, S.A..

Womersley, H.B.S. (1994). The marine benthic flora of southern Australia - Part IIIA - Bangiophyceae and Florideophyceae (Acrochaetiales, Nemaliales, Gelidiales, Hildenbrandiales and Gigartinales sensu lato). pp. 1-508, 167 figs, 4 pls, 4 maps. Canberra: Australian Biological Resources Study.

Zinova, A.D. (1967). Opredelitel zelenikh, burikh i krasnich odoroslei juzhnikh morei SSSR [Guide to the green, brown and red algae of the southern seas of USSR]. pp. 1-398. Moscow, Leningrad: Academia Nauk. [in Russian]

Created: 30 March 1996 by M.D. Guiry

Verified by: 01 February 2017 by M.D. Guiry

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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 26 September 2018.

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