Journal Molluscan Studies Advance Access originally published online on October 14, 2005
Journal of Molluscan Studies 2006 72(1):89-103; doi:10.1093/mollus/eyi052
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THE GENUS HAMINOEA (GASTROPODA: CEPHALASPIDEA) IN PORTUGAL, WITH A REVIEW OF THE EUROPEAN SPECIES
1Department of Zoology, Natural History Museum, Cromwell Road, SW7 5BD, London, UK; and 2Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Polígono del Río San Pedro s/n, Apartado 40, 11510 Puerto Real, Cádiz, Spain
Correspondence: M.A.E. Malaquias; e-mail: manm{at}nhm.ac.uk
The study of specimens of Haminoea collected on the coast of Portugal, together with the re-evaluation of historical specimens used by Nobre (193840) in his main work on the Portuguese molluscs, recognized the presence of two species, Haminoea navicula (da Costa, 1778) and H. orbignyana (Férussac, 1822), and confirmed the misidentification of H. orbignyana as H. elegans (Gray, 1825). Anatomical analysis found intraspecific variability in the radula of H. navicula and H. orbignyana and in the seminal duct of the latter. The systematic value of taxonomic features including the shell, external morphology, animal coloration, radula, jaws, gizzard plates, prostate gland, seminal duct, penis and egg-masses is discussed. For all European species but H. orbignyana, identification is only possible when anatomical data are considered, and the most relevant character is the male reproductive system. SEM images of the penis and prostate of H. navicula and H. orbignyana are given for the first time. A synoptic table for the recognition of the European species is provided.
(Received 21 January 2005; accepted 17 June 2005)