Scylaceus is a genus of North American sheet weavers that was first described by S. C. Bishop & C. R. Crosby in 1938. As of May 2019 it contains only two species, both found in Canada and the United States: S. pallidus and S. selma.
Ceratinopsidis is a monotypic genus of North American dwarf spiders containing the single species, Ceratinopsidis formosa. It was first described by S. C. Bishop & C. R. Crosby in 1930, and has only been found in United States.
Cheniseo is a genus of North American dwarf spiders that was first described by S. C. Bishop & C. R. Crosby in 1935.
Coreorgonal is a genus of North American dwarf spiders that was first described by S. C. Bishop & C. R. Crosby in 1935. As of May 2019 it contains only three species in the United States and Canada: C. bicornis, C. monoceros, and C. petulcus.
Gnathonaroides is a monotypic genus of North American dwarf spiders containing the single species, Gnathonaroides pedalis. It was first described by S. C. Bishop & C. R. Crosby in 1938, and has only been found in Canada and the United States.
Goneatara is a genus of North American dwarf spiders that was first described by S. C. Bishop & C. R. Crosby in 1935.
Paracornicularia is a monotypic genus of North American dwarf spiders containing the single species, Paracornicularia bicapillata. It was first described by C. R. Crosby & S. C. Bishop in 1931, and has only been found in the United States.
Pelecopsidis is a monotypic genus of North American dwarf spiders containing the single species, Pelecopsidis frontalis. It was first described by S. C. Bishop & C. R. Crosby in 1935, and has only been found in the United States.
Scironis is a genus of North American sheet weavers that was first described by S. C. Bishop & C. R. Crosby in 1938. As of May 2019 it contains only two species, both found in the United States: S. sima and S. tarsalis.
Scolopembolus is a monotypic genus of North American sheet weavers containing the single species, Scolopembolus littoralis. It was first described by S. C. Bishop & C. R. Crosby in 1938, and has only been found in the United States.
Scyletria is a monotypic genus of North American sheet weavers containing the single species, Scyletria inflata. It was first described by S. C. Bishop & C. R. Crosby in 1938, and has only been found in Canada and the United States.
Sisicus is a genus of sheet weavers that was first described by S. C. Bishop & C. R. Crosby in 1938. As of June 2019 it contains only three species, found in North America, Europe, Siberia, and East Asia: S. apertus, S. penifusifer, and S. volutasilex.
Sisis is a genus of North American sheet weavers that was first described by S. C. Bishop & C. R. Crosby in 1938. As of May 2019 it contains only two species, both found in Canada and the United States: S. plesius and S. rotundus.
Sitalcas is a monotypic genus of North American sheet weavers containing the single species, Sitalcas ruralis. It was first described by S. C. Bishop & C. R. Crosby in 1938, and has only been found in the United States.
Soucron is a monotypic genus of North American sheet weavers containing the single species, Soucron arenarium. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in Canada and the United States.
Souessa is a monotypic genus of North American sheet weavers containing the single species, Souessa spinifera. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in the United States.
Souessoula is a monotypic genus of North American sheet weavers containing the single species, Souessoula parva. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in the United States.
Sougambus is a monotypic genus of North American sheet weavers containing the single species, Sougambus bostoniensis. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in Canada and the United States.
Souidas is a monotypic genus of North American sheet weavers containing the single species, Souidas tibialis. It was first described by American entomologists C. R. Crosby & S. C. Bishop in 1936, and has only been found in the United States.
Traematosisis is a monotypic genus of American sheet weavers containing the single species, Traematosisis bispinosus. It was first described by S. C. Bishop & C. R. Crosby in 1938, and is only found in the United States.
