Ranella australasia (Perry, 1811)
Height 123mm, Width 71mm
Australasian Trumpet, Marine, Native - Non-endemic, On rocks from low tide to moderate depths
Australia, Lord Howe, Norfolk and Kermadec Islands, and New Zealand. Wanganella Bank, Kermadec, North, South and Chatham Islands, and Mernoo Bank, from 0-350m

Ranella olearium (Linnaeus, 1758)
Height 200mm, Width 100mm
Marine, Native - Non-endemic
Mediterranean, eastern and western Atlantic, southern Africa, southern Indian Ocean, and south-western Pacific. Wanganella Bank, Kermadec Ridge, and North, South and Chatham Islands, from 50-777m