Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Basommatophora
Family: Lymnaeidae
Genus: Lymnaea
Species: Lymnaea
This small air-breathing freshwater snail is in the Lymnaea genus. It was one of numerous 10 mm long, totally black snails living in a freshwater farm pond that was covered with the indigenous floating fern Azolla rubra (Red azolla).
Place: Pungatawa Rd, East of Taihape, North Island. The pond
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/