about 5-8cm long, arms may be 15-30cm long. Arms tapering. Webbing
extends to about half their arm's length. Coral rubble and reefs.
Commonly seen on our Southern shores.
about 6-8cm long, arms 12-20cm long.Head smooth and oval, and relatively
large compared to the arms. Arms tapering, webbing not very extensive.
Seagrasses. Commonly seen on Changi and some Northern shores.
2-3cm long, arms 10-12cm long. Head tapering, smooth sometimes with
tiny bumps. Arms slender tapering, webbing not very extensive. Generally
shades of purple. Seagrasses. Commonly seen on Changi and Northern