Antarctoneptunea aurora (Hedley, 1916)
Marine
Ross Sea, Antarctica

Antarctoneptunea benthicola Dell, 1956
Height 100mm, Width 40mm
Marine, Native - Non-endemic
West Norfolk Ridge, northern North Island, Challenger Plateau, Cook Strait, eastern North Island, S of Stewart Island, Snares, Auckland and Antipodes Islands, Bounty Plateau and Chatham Rise, from 103-1676m

Penion chathamensis (Powell, 1938)
Height 244mm, Width 106mm
Marine, Native - Endemic
Cook Strait, eastern and south-western South Island, Snares and Auckland Islands and Chatham Rise, from 109-515m

Penion cuvierianus (Powell, 1927)
Height 220mm, Width 85mm
Marine, Native - Endemic
Off northernmost tip of North Island, and north-eastern North Island as far south as Waipiro Bay, from 38-777m

Penion lineatus Marshall, Hills & Vaux, 2018
Marine, Native - Endemic
Middlesex and King Banks, Three Kings Islands and NW of Cape Reinga, from 77-246m

Penion ormesi (Powell, 1927)
Height 200mm, Width 75mm
Marine, Native - Endemic, Slender with tall spire
Three Kings Islands, western North Island, and northern South Island as far south as Kaikoura on the east coast and Hokitika on the west coast, from 9-695m

Penion sulcatus (Lamarck, 1816)
Height 165mm, Width 65mm
Siphon Whelk, Marine, Native - Endemic
North Island and South Island as far south as Akaroa, from 0-165m