Sea spider
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Sea spiders are marine arthropods of the class Pycnogonida, hence they are also called pycnogonids. The class includes the only extant order Pantopoda, alongside a few fossil species which could trace
Callipallene brevirostris
Ventral view and leg base of Chaetonymphon spinosum
Pseudopallene pachycheira, showing robust chelifores and the absence of palps.
Pycnogonum litorale, showing the absence of both chelifores and palps. Ovigers are absent in female.
Colossendeidae
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Colossendeidae is a family of sea spiders. This family includes more than 100 species distributed among six genera. These sea spiders inhabit the deep sea mostly but are also found in shallower waters
Sea spider
…are known as polymerous (i.e., extra-legged) species, which are distributed among six genera in the families Pycnogonidae (five pairs in Pentapycnon), Colossendeidae (five pairs in Decolopoda and Pentacolossendeis, six pairs in Dodecolopoda) and Nymphonidae (five pairs in Pentanymphon, six pairs in Sexanymphon…
Sea Spider