Phylum

Platyhelminthes (Flatworms)

Parakontikia ventrolineata. Photo: (c) James Bailey, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning “flat” and ἕλμινς (root: ἑλμινθ-), helminth-, meaning “worm”) are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (having no body cavity), and have no specialized circulatory and respiratory organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening…

— Wikipedia

Subtaxa

Subphylum: Rhabditophora

Where in Humboldt

Discussion

PLEASE SHARE YOUR THOUGHTS ABOUT PLATYHELMINTHES, THE FLATWORMS