0Home | About Molluscan Research | Online content | Editorial committee | Information for authors | How to order | Links0

The phylogeny and taxonomy of New Zealand Notoacmea and Patelloida species (Mollusca: Patellogastropoda: Lottiidae) inferred from DNA sequences

TOMOYUKI NAKANO1, BRUCE A. MARSHALL2, MARTYN KENNEDY3 & HAMISH G. SPENCER3
1Department of Geology and Palaeontology, National Museum of Nature and Science, 3-23-1 Hyakunin-cho, Shinjuku-ku, Tokyo 169-0073, Japan
2Museum of New Zealand Te Papa Tongarewa, P.O. Box 467, Wellington, New Zealand
3Allan Wilson Centre for Molecular Ecology and Evolution, Department of Zoology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
Corresponding author: Hamish G. Spencer (h.spencer@otago.ac.nz)

Abstract

The systematics of Notoacmea Iredale, 1915 have been confused because of their highly variable shells. We used DNA sequences from a mitochondrial gene (COI) and a nuclear gene (ITS1) to define the species boundaries among New Zealand Notoacmea species, using the allied genus Patelloida Quoy & Gaimard, 1834 as outgroup. Phylogenetic trees of 195 individuals showed 14 well-supported, reciprocally monophyletic clades, which we treat as species: N. badia Oliver, 1926, N. cellanoides Oliver, 1926, N. daedala (Suter, 1907), N. elongata (Quoy & Gaimard, 1834), N. parviconoidea (Suter, 1907), N. pileopsis (Quoy & Gaimard, 1834), N. scapha (Suter, 1907), N. scopulina Oliver, 1926, N. sturnus (Hombron & Jacquinot, 1841), N. subantarctica Oliver, 1926, Patelloida cortica (Hutton, 1880) and three new Notoacmea species, N. potae, N. rapida, and N. turbatrix, which are described here. Of the above names, N. daedala and N. subantarctica are resurrected from synonymy. Notoacmea helmsi (E.A. Smith, 1894) and N. virescens Oliver, 1926 are interpreted as synonyms of N. elongata.

Key words: Gastropoda, limpet, new taxa, species boundaries, COI, ITS1, intertidal.

Full article (PDF; 6200 KB)