- family: Theridiidae
- genus: Phycosoma
- species: Phycosoma altum (Keyserling, 1886)
- species: Phycosoma amamiensis (Yoshida, 1985)
- species: Phycosoma excisum (Simon, 1889)
- species: Phycosoma flavomarginatum (Bösenberg & Strand, 1906)
- species: Phycosoma inornatum (O. P.-Cambridge, 1861)
- species: Phycosoma jamesi (Roberts, 1979)
- species: Phycosoma japonicum (Yoshida, 1985)
- species: Phycosoma lineatipes (Bryant, 1933)
- species: Phycosoma martinae (Roberts, 1983)
- species: Phycosoma menustya (Roberts, 1983)
- species: Phycosoma mustelinum (Simon, 1889)
- species: Phycosoma nigromaculatum (Yoshida, 1987)
- species: Phycosoma oecobioides O. P.-Cambridge, 1879
- species: Phycosoma spundana (Roberts, 1978)