Lasturnatka z čeledi Cylindroleberididae (foto Anna33, CC BY 2.5, https://creativecommons.org/licenses/by/2.5, via Wikimedia Commons).

Lasturnatka z čeledi Cylindroleberididae (foto Anna33, CC BY 2.5, https://creativecommons.org/licenses/by/2.5, via Wikimedia Commons).