155,597 species and infraspecific names are in the database, 21,916 images, 60,165 bibliographic items, 438,693 distributional records.

Gyrosigma murphyi G.Reid

Publication details
Gyrosigma murphyi G.Reid in G. Reid & D.M. Williams 2003: 126-142, figs 1-74

Published in: Reid, G. & Williams, D.M. (2003). Systematics of the Gyrosigma balticum complex (Bacillariophyta), including three new species. Phycological Research 51(2): 126-142.
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Type species
The type species (holotype) of the genus Gyrosigma is Gyrosigma hippocampus Hassall.

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

Synonym(s)
No synonyms are currently included in AlgaeBase.

General environment
No habitat entry has yet been made for this entity.

Description
Valves linear, vaulted, sigmoid, tapering to obtuse apices. Length 200-400 mm, width 25-35 mm. Longitudinal and transverse striae 11-15 in 10 mm. Raphe central, undulate. External central raphe fissures dedflected in opposite directions. Central bars thick and chunky, surrounded by large hyaline areas. At the apex, above raphe fissures and helictoglossa there is a row of pores. Two plate-like, incised chloroplasts lying under the valve along the length of the cell.

Type information
Mersea Island, England. Marine (Reid & Williams 2003: 139). Holotype: (Reid & Williams 2003: 139).

No distributions recorded
No distributional records for this taxon have been recorded by AlgaeBase to date. Generally, recent national lists or extensive regional or state lists have been employed to give a general indication of distribution.

Created: 30 November 2004 by Sandy Lawson

Verified by: 06 January 2010 by M.D. Guiry

Accesses: This record has been accessed by users 366 times since it was created.

Verification of data
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=65932

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 June 2019.

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