2010 Moorea Biocode   cc-by-nc-sa-3.0

Sphaeromatoidea is a superfamily of isopods. There are 738 species of Sphaeromatoidea, in 111 genera and 3 families. It includes groups like Ancinidae, Sphaeromatidae, and Tecticipitidae. They rely on drag powered swimming to move around.

  • URI: https://eol.org/schema/terms/drag_based_swimming
  • Definition: Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.
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EOL has data for 7 attributes, including:

Known occurrences, collected specimens and observations of Sphaeromatoidea Latreille 1825. View this species on GBIF