Theridiidae Sundevall, 1833
Phycosoma altum (Keyserling, 1886)
Phycosoma amamiensis (Yoshida, 1985)
Phycosoma excisum (Simon, 1889)
Phycosoma flavomarginate Boes.et Str., 1906
Phycosoma flavomarginatum (Bösenberg & Strand, 1906)
Phycosoma inornatum (O. P.-Cambridge, 1861)
Phycosoma jamesi (Roberts, 1979)
Phycosoma japonicum (Yoshida, 1985)
Phycosoma lineatipes (Bryant, 1933)
Phycosoma martinae (Roberts, 1983)
Phycosoma menustya (Roberts, 1983)
Phycosoma mustelinum (Simon, 1889)
Phycosoma nigromaculatum (Yoshida, 1987)
Phycosoma oecobioides O. P.-Cambridge, 1879
Phycosoma spundana (Roberts, 1978)