1. Species Siphonosoma (Siphonosoma) amamiense (Ikeda, 1904) accepted as Siphonosoma funafuti (Shipley, 1898) (subsequent combination)
2. Species Siphonosoma (Siphonosoma) arcassonense (Cuénot, 1902) accepted as Siphonosoma arcassonense (Cuénot, 1902) (subsequent combination)
3. Species Siphonosoma (Siphonosoma) australe (Keferstein, 1865) accepted as Siphonosoma australe australe (Keferstein, 1865) (subsequent combination)
4. Species Siphonosoma (Siphonosoma) boholense (Selenka, De Man & Bülow, 1883) accepted as Siphonosoma boholense (Selenka, de Man & Bülow, 1883) (subsequent combination)
5. Species Siphonosoma (Siphonosoma) dayi Stephen, 1942 accepted as Siphonosoma dayi Stephen, 1942 (subsequent combination)
6. Species Siphonosoma (Siphonosoma) eniwetoki Fisher, 1950 accepted as Siphonosoma rotumanum (Shipley, 1898) (subsequent combination)
7. Species Siphonosoma (Siphonosoma) funafuti (Shipley, 1898) accepted as Siphonosoma funafuti (Shipley, 1898) (subsequent combination)
8. Species Siphonosoma (Siphonosoma) ingens (Fisher, 1947) accepted as Siphonosoma ingens (Fisher, 1947) (subsequent combination)
9. Species Siphonosoma (Siphonosoma) mourense Satô, 1930 accepted as Siphonosoma mourense Satô, 1930 (subsequent combination)
10. Species Siphonosoma (Siphonosoma) novaepommeraniae (Fischer, 1926) accepted as Siphonosoma cumanense (Keferstein, 1867) (subsequent combination)
11. Species Siphonosoma (Siphonosoma) rotumanum (Shipley, 1898) accepted as Siphonosoma rotumanum (Shipley, 1898) (subsequent combination)
12. Species Siphonosoma (Siphonosoma) takatsukii Satô, 1935 accepted as Siphonosoma australe takatsukii Satô, 1935 (subsequent combination)

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