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An Interpretation of the Taxonomic Relationship Between the Limpets Patella Rustica and P. Piperata

An Interpretation of the Taxonomic Relationship Between the Limpets Patella Rustica and P. Piperata
An Interpretation of the Taxonomic Relationship Between the Limpets Patella Rustica and P. Piperata
The taxonomic relationship between the limpets Patella rustica (Mollusca: Archaeogastropoda) and P. piperata is unclear with controversy as to whether P. piperata should be given specific status. The problems stem from its similar morphology but different biogeographic range from P. rustica. Individuals from seven populations of P. rustica and three of P. piperata were analysed for a combination of morphological and genetical characters. Morphological analyses of shell shape and radular morphology revealed differences between species for radular length, higher in P. rustica than in P. piperata, and the shape of the pluricuspid teeth of the radula with a well-developed internal cusp in P. piperata but not in P. rustica. Electrophoretic results based on 11 allozyme loci, however, did not distinguish the two species clearly. The overall genetic identity value between the two was 0·861, a value which lies within the range for conspecific populations of other patellids. It is proposed that P. piperata on the basis of the genetic data obtained, may represent a subspecies of P. rustica that is in the process of diverging due to its geographic isolation.
0025-3154
717-732
Côrte-Real, H.B.S.M.
621e935b-338f-44ed-8d28-28b8d6f89975
Hawkins, S.J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Thorpe, J.P.
2ab73889-db62-416f-9ece-456e09195dcb
Côrte-Real, H.B.S.M.
621e935b-338f-44ed-8d28-28b8d6f89975
Hawkins, S.J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Thorpe, J.P.
2ab73889-db62-416f-9ece-456e09195dcb

Côrte-Real, H.B.S.M., Hawkins, S.J. and Thorpe, J.P. (1996) An Interpretation of the Taxonomic Relationship Between the Limpets Patella Rustica and P. Piperata. Journal of the Marine Biological Association of the United Kingdom, 76 (3), 717-732. (doi:10.1017/S0025315400031416).

Record type: Article

Abstract

The taxonomic relationship between the limpets Patella rustica (Mollusca: Archaeogastropoda) and P. piperata is unclear with controversy as to whether P. piperata should be given specific status. The problems stem from its similar morphology but different biogeographic range from P. rustica. Individuals from seven populations of P. rustica and three of P. piperata were analysed for a combination of morphological and genetical characters. Morphological analyses of shell shape and radular morphology revealed differences between species for radular length, higher in P. rustica than in P. piperata, and the shape of the pluricuspid teeth of the radula with a well-developed internal cusp in P. piperata but not in P. rustica. Electrophoretic results based on 11 allozyme loci, however, did not distinguish the two species clearly. The overall genetic identity value between the two was 0·861, a value which lies within the range for conspecific populations of other patellids. It is proposed that P. piperata on the basis of the genetic data obtained, may represent a subspecies of P. rustica that is in the process of diverging due to its geographic isolation.

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Published date: 1996

Identifiers

Local EPrints ID: 188741
URI: http://eprints.soton.ac.uk/id/eprint/188741
ISSN: 0025-3154
PURE UUID: b66a287d-73cb-4ee7-ab74-e5ee86510759

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Date deposited: 27 May 2011 09:17
Last modified: 14 Mar 2024 03:32

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Contributors

Author: H.B.S.M. Côrte-Real
Author: S.J. Hawkins
Author: J.P. Thorpe

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