Archidela
Archidela is a genus of sea slugs belonging to the family Runcinidae. These small, shell-less marine gastropods are characterized by their smooth, oval bodies and cryptic coloration, often blending in with their surrounding environment. Archidela species are typically found in shallow coastal waters, inhabiting algal beds, rocky reefs, and sediment substrates. They are carnivores, preying on small invertebrates and possibly algae.
The genus Archidela is distinguished from other Runcinidae genera by a combination of morphological characteristics, including the shape and arrangement of internal organs, radular teeth structure, and details of the reproductive system. Further research, including molecular analysis, continues to refine the taxonomic classification within the Runcinidae family. Identification of specific Archidela species can be challenging due to their small size and subtle differences in appearance.