A review of the Recent Australian species of Merelina Iredale, 1915 (Caenogastropoda: Rissoidae)

Molluscan Research 31(2): 65-84; published 28 Jul. 2011
Copyright © The Malacological Society of Australasia & the Society for the Study of Molluscan Diversity
A review of the Recent Australian species of Merelina Iredale, 1915 (Caenogastropoda: Rissoidae)

FRANCESCO CRISCIONE^1* & WINSTON F. PONDER¹

^{1 Australian Museum, 6
College Street, Sydney 2010 NSW, Australia.

Email: cicciocriscione@gmail.com
(*Corresponding author); winston.ponder@austmus.gov.au

Abstract

The four
previously-named Australian species of the rissoid genus Merelina
Iredale, 1915 are redescribed and illustrated. A neotype is designated
for M. elegans (Angas, 1877) and this species and three others
previously named are redescribed and illustrated. In addition, a
further four new species are described; M. hirta n. sp. from SE
Australia, M. cancellata n. sp. from Bass Strait and Tasmania, M.
lordhowensis n. sp. from the islands and seamounts of the southern
Lord Howe Rise plateau and M. norfolkensis n. sp. from Norfolk
Island. Distributions and revised synonymies are given, along with a
key to the Australian species and a list of all the Recent species of
the genus.

Key
words:
Mollusca,
Gastropoda, Australia, Lord Howe Island, Norfolk Island, taxonomy,
radula, penis morphology.

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