Australian Museum Journal The subfamily Littorininae (Gastropoda: Littorinidae) in the temperate Southern Hemisphere: the genera Nodilittorina, Austrolittorina and Afrolittorina

Shortform:
Reid and Williams, 2004, Rec. Aust. Mus. 56(1): 75–122
Author(s):
Reid, David G.; Williams, Suzanne T.
Year published:
2004
Title:
The subfamily Littorininae (Gastropoda: Littorinidae) in the temperate Southern Hemisphere: the genera Nodilittorina, Austrolittorina and Afrolittorina
Serial title:
Records of the Australian Museum
Volume:
56
Issue:
1
Start page:
75
End page:
122
DOI:
10.3853/j.0067-1975.56.2004.1393
Language:
English
Date published:
07 April 2004
Cover date:
07 April 2004
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
MOLLUSCA: GASTROPODA; TAXONOMY
Digitized:
07 April 2004
Available online:
07 April 2004
Reference number:
1393
EndNote package:
EndNote file
Title page:
Title page (13kb PDF)
Complete work:
Complete work (8264kb PDF)

Abstract

The littorinine gastropods of the temperate southern continents were formerly classified together with tropical species in the large genus Nodilittorina. Recently, molecular data have shown that they belong in three distinct genera, Austrolittorina, Afrolittorina and Nodilittorina, whereas the tropical species are members of a fourth genus, Echinolittorina. Austrolittorina contains 5 species: A. unifasciata in Australia, A. antipodum and A. cincta in New Zealand, and A. fernandezensis and A. araucana in western South America. Afrolittorina contains 4 species: A. africana and A. knysnaensis in southern Africa, and A. praetermissa and A. acutispira in Australia. Nodilittorina is monotypic, containing only the Australian N. pyramidalis. This paper presents the first detailed morphological descriptions of the African and Australasian species of these three southern genera (the eastern Pacific species have been described elsewhere). The species-level taxonomy of several of these has been confused in the past; Afrolittorina africana and A. knysnaensis are here distinguished as separate taxa; Austrolittorina antipodum is a distinct species and not a subspecies of A. unifasciata; Nodilittorina pyramidalis is separated from the tropical Echinolittorina trochoides with similar shell characters. In addition to descriptions of shells, radulae and reproductive anatomy, distribution maps are given, and the ecological literature reviewed.