NIWA Guide to Polychaeta | Shore polychaetes | Pick shore group | Pick shore family | Shell polychaetes |
Marphysa depressa | Eunicidae (eunicid)
Eunicida (Annelida: Polychaeta) |
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Marphysa depressa (Schmarda, 1861). Family Eunicidae | ||||
Marphysa depressa dorsal head [Click photo for picture page] ![]() | ||||
Habitat: | Intertidal. Rocky shore. Bays and sheltered beaches. Infaunal. Epifaunal. Depth range: 0-2 (m). Salinity regime: Harbour-like variation. Microhabitat: Muddy crevices. Tube: None, but galleries (burrow track) in sediment. | |||
Occurrence: | Common. Density: 400 (m2).
Distribution in NZ: New Zealand wide. | |||
Feeding guild: | Surface omnivore. | |||
Diagnosis: | Genus Marphysa in Family Eunicidae.
Marphysawith branchiae beginning from chaetiger 25 or further back, with 1 to 4 filaments. Body section flattened dorso-ventrally after the first few segments. Pale subacicular hooks in post body have distinctly bidentate tips with small hood. Supra-acicular chaetae are capillaries with some delicate inconspicuous comb-tipped chaetae present. Subacicular chaetae are compound capillaries and falcigers. Colour: Grey body with red branchiae. Maximum size: 400 mm total length, 7 mm body width. |
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Notable aspect: | Presence of compound capillaries. | |||
Comparisons: | Other shore Marphysa such as M. capensis may appear quite similar and examination of chaetal types will be needed to distinguish them. | |||
Taxonomy: | The purported four valid New Zealand Marphysa species need to be reviewed again. | |||
Distribution: | Endemic. Also reported for South Africa | |||
Biology: | Little is known. Note that Morton & Miller 1968 may be including more than one species in their comments using this name. | |||
Best References: | Biology: Morton and Miller (1968) The New Zealand sea shore.. Collins, Lond. Auckland (2nd ed. 1973 pagination unchanged) :653 Taxonomy: Knox and Green (1972) The Polychaetes of New Zealand Part 4. Eunicidae. Journal of the Royal Society of New Zealand 2:459-470. | |||
More information: |
Synonyms, NZ records | Original figures | Original description details | |
Genus diagnosis | More pictures | Further references (biology, etc) | Family Eunicidae | |
Internet sources: |
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Genus only in Ubio Taxonomic Name Server | PubMed | Scirus | Zoological Record | | ||||
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The information provided by this page and by the pages of the "more information" links is held in a structured form for rapid and frequent updating and improvement. Descriptive text is compiled from a number of database fields, some of which may occasionally be empty. Data last edited 6/07/2004, and page last generated by G. Read, 27/07/2004 (dd/mm/yy) |