Type species: Porina proboscidea Waters, 1889
This genus includes the species:
| Semihaswellia proboscidea | (Waters, 1888) | Recent | Caribbean |
| Semihaswellia rectifurcata | (Canu & Bassler, 1917) | Tertiary | USA, Spain |
| Semihaswellia sinuosa | Canu & Bassler, 1928 | Recent | Gulf of Mexico |
| Semihaswellia sulcosa | Canu & Bassler, 1930 | Recent | Galapagos |
| Semihaswellia taiwanica (cyclostome?) | Hu, 1987 | Tertiary (Pliocene) | Taiwan |
| Semihaswellia umbrella | Gordon & d'Hondt, 1997 | Recent | New Caledonia |
Harmer notebook - entry for Semihaswellia
Semihaswellia page at NMITA
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