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Genus Omegapilla Iredale, 1937

Pupasnails


Compiler and date details

April 2012 - Dr John Stanisic

 

Introduction

Omegapilla is a chiefly southern Australian genus and is represented by the single wide ranging Omegapilla australis. The Red Centre Pupilla (Gibbulinopsis) ficulnea (Tate, 1894) is dextrally coiled but otherwise very similar to Omegapilla australis. The combination of larger size, single parietal tooth and cylindrically pupiform shape distinguish Omegapilla from the somewhat similar Gastrocopta.

 

Distribution

States

New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia


IBRA and IMCRA regions (map not available)

IBRA

NSW, Qld, SA, Tas, Vic, WA: Brigalow Belt South (BBS), Ben Lomond (BEL), Esperance Plains (ESP), Eyre Yorke Block (EYB), Hampton (HAM), Jarrah Forest (JF), Murray Darling Depression (MDD), NSW North Coast (NNC), Nullarbor (NUL), Sydney Basin (SB), South East Corner (SEC), Swan Coastal Plain (SWA), Tasmanian South East (TSE)

Diagnosis

Shell tiny, pupiform, sinistral or dextral, smooth; whorls slightly rounded, sutures weakly impressed; aperture ovately lunate with a single large parietal tooth, one or two smaller nodules inside aperture and a columellar fold. Colour bronze to orange-brown.

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
11-Feb-2014 PUPILLIDAE 11-Feb-2014 MODIFIED
24-Jul-2012 24-Jul-2012 MODIFIED
12-Apr-2012 ADDED