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Systematics, phylogeny and biogeography
RESEARCH ARTICLE

Plumatella trasimenica and Plumatella timwoodi, two new species belonging to the ‘repens group’ from central Italy (Bryozoa :  Phylactolaemata : Plumatellidae)

Maria Illuminata Taticchi A C , Antonia Concetta Elia A , Chiara Todini A and Marino Prearo B
+ Author Affiliations
- Author Affiliations

A Dipartimento di Biologia Cellulare e Ambientale, Università degli Studi di Perugia, Via Elce di Sotto, 06100 Perugia, Italy.

B Istituto Zooprofilattico del Piemonte, Liguria, Valle D’Aosta, Via Bologna, 148, 10154 Torino, Italy.

C Corresponding author. Email: tapa@unipg.it

Invertebrate Systematics 25(5) 444-453 https://doi.org/10.1071/IS11023
Submitted: 31 May 2012  Accepted: 17 October 2011   Published: 14 February 2012

Abstract

Two new species – Plumatella trasimenica, from Lake Trasimeno and from an external sedimentation pond of a tropical fish farm, and Plumatella timwoodi, from Lake Piediluco – are described. These species belong to the ‘repens group’ (P. bushnelli Wood, 2001; P. geimermassardi Wood & Okamura, 2004; P. nitens Wood, 1996; P. repens (Linné, 1758); P. rugosa Wood, Geimer & Massard, 1998; P. similirepens Wood, 2001; P. viganoi Taticchi, 2010), because the annulus-chamber pores of the floatoblast are always characterised by the presence of long spines regularly distributed around the pores. Here, further morphological features, which distinguish them from the other species of the repens group, are described for both new species. The coexistence in the same sampling sites of species of the repens-group indicates that the new species are not ecomorphs of similar species.


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