Sigmoria areolata Shelley, 1981 (original description)
Sigmoria austrimontis Shelley, 1981 (original description)
Sigmoria bidens (Causey, 1942) (additional source)
Sigmoria disjuncta Shelley, 1981 (original description)
Sigmoria fumimontis Shelley, 1981 (original description)
Sigmoria hoffmani Shelley, 1976 (additional source)
Sigmoria inornata Shelley, 1981 (original description)
Sigmoria laticurvosa Shelley, 1981 (original description)
Sigmoria leucostriata Shelley, 1981 (original description)
Sigmoria lyrea Shelley, 1981 (original description)
Sigmoria munda Chamberlin, 1939 (status source)
Sigmoria nantahalae Hoffman, 1958 (additional source)
Sigmoria nigrimontis angulosa Shelley, 1981 (original description)
Sigmoria nigrimontis unicoi Shelley, 1981 (original description)
Sigmoria quadrata Shelley, 1981 (original description)
Sigmoria rubromarginata austrimontis Shelley, 1981 (original description)
Sigmoria sigirioides Shelley, 1981 (original description)
Sigmoria simplex Shelley, 1981 (original description)
Sigmoria stenogon Chamberlin, 1942 (additional source)
Sigmoria stenoloba Shelley, 1981 (original description)
Sigmoria stibarophalla Shelley, 1981 (original description)
Sigmoria translineata Shelley, 1981 (original description)
Sigmoria triangulata Shelley, 1981 (original description)
Sigmoria truncata Shelley, 1981 (original description)
Sigmoria tuberosa Shelley, 1981 (original description)
Sigmoria xerophylla Shelley, 1981 (original description)