Genus Siphonophora Brandt, 1837

See the Discussion chapter concerning the uncertainties surrounding this genus. Of the four known Brazilian species referred to Siphonophora, S. hebetunguis and the two new species described here share an unusual, paddle-like shape of the claws. Considering the unsatisfactory state of siphonophorid genus-level classification, we refrain from suggesting that this character might warrant the recognition of a separate genus.