NZ Mollusca

Sportellidae - Anisodonta (Tahunanuia)

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.