Cnidarian-predators
Guides
Pycnogonidae
Small Sea Spiders
Pycnogonidae is a family of sea spiders containing two genera: Pycnogonum and Pentapycnon. Members are distinguished by their short, stout legs and reduced cephalic appendages. Most species have four pairs of legs as adults, though Pentapycnon species possess five pairs. The family has a worldwide marine distribution.