#Euopisthobranchia
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I need to rant to someone about the taxonomy of soft-bodied marine gastropod molluscs
#NOT ALL SEA SLUGS ARE NUDIBRANCHS#and the subclass opisthobranchia is obselete since it was determined to be paraphyletic but the updated grouping euopisthobranchia doesnt#include sacoglossa or acochlidacea </3#which is booo bc elysia chlorotica are from the sacoglossa clade but are a 'sea slug' but are not nudibranches and there isnt a good term to#describe specialized complex soft-bodied marine gastropod molluscs aka sea slugs. its too broad grrr#they are all related in my heart of hearts
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True to its name, the sea butterfly (Clio chaptali)—a member of a family of marine snails—seems to fly through water. Two fleshy “wings” have evolved from the snail’s foot, which allow it to flutter through the water column and passively feed on plankton while remaining protected inside its translucent shell.
Photo: Solvin Zankl
#Animal#Invertebrate#Mollusk#Sea Snail#Sea Butterfly#Lophotrochozoa#Gastropod#Heterobranchia#Euthyneura#Euopisthobranchia#Thecosomata#Cavolinioidea#Cliidae#Clio#Clio chaptali
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