NZ Mollusca

Sportellidae - Anisodonta

Genus: Anisodonta (Austrosportella)map >
Width 7.3mm, Height 4.7mm, Marine, Endemic
South Island. Off Taiaroa Heads, Otago. Off Chatham Islands FME.
Genus: Anisodonta (Tahunanuia)map >
Width 10mm, Height 5.5mm, Marine, Endemic
North and South Islands ACFME.
Width 4.8mm, Height 3.5mm, Marine, Endemic. Shorter and more trigonal than alata and has the umbonal-ventral ridge stronger and distinctly angulate
Off Campbell Island AnE.