Marine flatworm海扁虫
Olive Flatworm橄榄扁虫
acoel flatworm鞭毛虫
Red Mangrove Flatworm红树林扁虫
C unidentified flatworm C不明扁虫
B unidentified flatworm B不明扁虫
D unidentified flatworm D不明扁虫
A unidentified flatworm A不明扁虫
N（名词） any parasitic or free-living invertebrate of the phylum Platyhelminthes, including planarians, flukes, and tapeworms, having a flattened body with no circulatory system and only one opening to the intestine 扁虫类