Trigonostomidae Graff, 1905
Messoplana aremorica Ehlers & Sopott-Ehlers, 1989
Messoplana canariensis Ehlers & Ehlers, 1980
Messoplana elegans (Luther, 1948)
Messoplana falcata (Ax, 1953)
Messoplana floralis Ehlers, 1974
Messoplana geminata Hartog, 1966
Messoplana globulifera Artois, Vermin & Schockaert, 2000
Messoplana helgolandica Ax, 1971
Messoplana minuta Artois, Vermin & Schockaert, 2000
Messoplana pacifica Karling, 1986
Messoplana roscoffensis Ehlers, 1980
Messoplana rugata Ehlers, 1974
Messoplana spiralis Artois, Vermin & Schockaert, 2000
