Children (12 direct children, 181 direct and indirect children):
Elysia
(tree size 129)
Elysia (gastropod)
Plakobranchus
(tree size 11)
Thuridilla
(tree size 25)
Elysiobranchus
(tree size 1)
Pattyclaya
(tree size 2)
Elysiella
(tree size 1)
Aplysiopterus
Checholysia
Pterogasteron
Thallepus
Tridachia
Tridachiella