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Morphological and biochemical evidence that Perinereis cultrifera (Polychaeta: Nereididae) is a complex of species

Published online by Cambridge University Press:  01 August 2000

Patrick Scaps
Affiliation:
Laboratoire Ecosystèmes Littoraux et Còtiers (ELICO), CNRS UPRES-A 8013, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cédex, France.
Abdelkader Rouabah
Affiliation:
Institut des Sciences de la Nature, Université de Constantine, 25000 Constantine, Algeria
Alain Leprêtre
Affiliation:
Laboratoire Ecosystèmes Littoraux et Còtiers (ELICO), CNRS UPRES-A 8013, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cédex, France.

Abstract

Paragnath variation was examined in two populations of the epitokous form of the polychaete Perinereis cultrifera from the English Channel and the Algerian Mediterranean coast. Populations differ from each other in the mean number of paragnaths in groups I, II, III, V and VII–VIII, in the number of teeth per half jaw and in the morphology of paragnaths in the posterior belt. Individuals of the two populations studied share no common alleles at five loci involved in electrophoretic comparison. The general protein band patterns reveal 13 markers that discriminate between the Perinereis individuals. Congruence of all the reported results agree with the assignment that P. cultrifera is a complex of species, probably more than two.

Type
Brief Report
Copyright
2000 Marine Biological Association of the United Kingdom

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