Type species: Stomachetosella crassicollis Canu & Bassler, 1917
This genus includes the species:
| Stomachetosella abyssicola | Osburn, 1952 | Recent | California |
| Stomachetosella balani | (O'Donoghue & de Watteville, 1944) | Recent | S. Africa, S. Atlantic |
| Stomachetosella condylata | Soule, Soule & Chaney, 1995 | Recent | SW USA |
| Stomachetosella crassicollis | Canu & Bassler, 1917 | Tertiary (Olig.) | USA (Alabama) |
| Stomachetosella cruenta | (Busk, 1854) | Recent | Britain, Arctic |
| Stomachetosella decorata | Grischenko, Dick & Mawatari, 2007 | Recent | Japan Hokkaido |
| Stomachetosella distincta | Osburn, 1952 | Recent | Alaska |
| Stomachetosella hincksi | Powell, 1968 | Recent | Arctic Canada |
| Stomachetosella jacquemeti | David, 1949 | ||
| Stomachetosella limbata | (Lorenz, 1886) | Recent | Arctic Canada |
| Stomachetosella magniporata | (Nordgaard, 1906) | Recent | |
| Stomachetosella normani | Hayward, 1994 | Recent | Britain |
| Stomachetosella producta | (Packard, 1863) | ||
| Stomachetosella sienna | Dick & Ross, 1988 | Recent | Alaska |
| Stomachetosella sinuosa | (Busk, 1860) | Recent | Britain, Arctic |
| Stomachetosella tuberculata | Androsova, 1958 | Recent | Sea of Japan |
| Stomachetosella uniporosa | Hayami, 1975 | Japan |
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| Stomachetosella crassicollis (thanks to Dennis Gordon, NIWA) |
Harmer notebook - entry for Stomachetosella