Taxonomic names from R. Arnold 1903
- Actaeon (Rictaxis) punctocoelata (Carpenter 1864) [Acteonidae]
- Aligena cerritensis, R. Arnold 1903 [Lasaeidae]
- Amphissa ventricosa, R. Arnold 1903 [Columbellidae]
- Angulus buttoni (Dall 1900) [Tellinidae]
- Anomia lampe, Gray 1849 [Anomiidae]
- Anomia limatula, Dall 1879 [Anomiidae]
- Astarte (Crassinella) branneri, R. Arnold 1903 [Crassatellidae]
- Bela sanctaemonicae, R. Arnold 1903 [Conidae]
- Bittium williamsoni, R. Arnold 1903 [Cerithiopsidae]
- Cadulus nitentior, R. Arnold 1903 [Gadilidae]
- Callista subdiaphana pedroana, R. Arnold 1903 [Veneridae]
- Cancellaria crawfordiana, Dall 1891 [Cancellariidae]
- Chemnitzia crebrifilata, Carpenter 1865 [Pyramidellidae]
- Chemnitzia gibbosa, Carpenter 1857 [Pyramidellidae]
- Chemnitzia similis, C. B. Adams 1852 [Pyramidellidae]
- Chemnitzia torquata, Gould 1853 [Pyramidellidae]
- Chlamys jordani (R. Arnold 1903) [Pectinidae]
- Chlorostoma (Omphalius) viridulum (Gmelin 1791) [Tegulidae]
- Chlorostoma (Omphalius) viridulum ligulatum (Menke 1850) [Trochidae]
- Chlorostoma aureotinctum (Forbes 1852) [Trochidae]
- Chlorostoma brunnea (Philippi 1849) [Trochidae]
- Clidiophora punctata (Conrad 1837) [Pandoridae]
- Columbella (Aesopus) (Gould 1860) [Columbellidae]
- Columbella (Aesopus) oldroydi, R. Arnold 1903 [Mangeliidae]
- Columbella solidula praecursor, R. Arnold 1903 [Columbellidae]
- Delphinoidea coronadoensis, R. Arnold 1903 [Pyramidellidae]
- Drillia inermis (Reeve 1843) [Turridae]
- Drillia johnsoni, R. Arnold 1903 [Drilliidae]
- Drillia renaudi, R. Arnold 1903 [Pseudomelatomidae]
- Eulima falcata, Carpenter 1865 [Eulimidae]
- Eulima hastata, Sowerby 1834 [Eulimidae]
- Eupleura muriciformis curta, R. Arnold 1903 [Muricidae]
- Fissuridea aspera (Rathke 1833) [Fissurellidae]
- Fissuridea inaequalis (G. B. Sowerby 1835) [Fissurellidae]
- Fissuridea volcano (Reeve 1849) [Fissurellidae]
- Fusus cancellinus, Philippi 1845 [Muricidae]
- Haminea virescens (Sowerby 1833) [Haminoeidae]
- Hippagus novemcostatus, Adams and Reeve 1863 [Verticordiidae]
- Kennerlia bicarinata, Carpenter 1863 [Pandoridae]
- Kennerlia filosa, Carpenter 1863 [Pandoridae]
- Laqueus jeffreysi (Dall 1871) [Laqueidae]
- Leda minuta praecursor, R. Arnold 1903 [Nuculanidae]
- Lima (Mantellum) dehiscens (Conrad 1837) [Limidae]
- Lora oldroydi (R. Arnold 1903) [Conidae]
- Lyonsia californica, Conrad 1837 [Lyonsiidae]
- Macron kellettii (A. Adams 1855) [Pseudolividae]
- Mangelia (Taranis), Jeffreys 1870 [Turridae]
- Mangelia (Taranis) strongi, R. Arnold 1903 [Turridae]
- Mangelia interfossa, Carpenter 1864 [Mangeliidae]
- Mangilia (Cythara) branneri, R. Arnold 1903 [Mangeliidae]
- Mangilia (Taranis) strongi, R. Arnold 1903 [Turridae]
- Mangilia branneri, R. Arnold 1903 [unclassified species]
- Mangilia hooveri, R. Arnold 1903 [Mangeliidae]
- Mangilia interfossa (Carpenter 1864) [Mangeliidae]
- Mangilia interfossa pedroana, R. Arnold 1903 [Mangeliidae]
- Mangilia interlirata (Stearns 1872) [Mangeliidae]
- Mangilia painei, R. Arnold 1903 [Mangeliidae]
- Margarita optabilis (Carpenter 1864) [Trochidae]
- Margarita optabilis knechti, R. Arnold 1903 [Trochidae]
- Margarita optabilis nodosa, R. Arnold 1903 [Trochidae]
- Margarita parcipicta (Carpenter 1864) [Trochidae]
- Margarita parcipicta pedroana, R. Arnold 1903 [Trochidae]
- Mitramorpha filosa, Carpenter 1864 [unclassified species]
- Mitromorpha intermedia, R. Arnold 1903 [Neogastropoda]
- Moerella salmonea (Carpenter 1864) [Tellinidae]
- Murex (Cerostoma) foliatus (Gmelin 1791) [Muricidae]
- Murex (Pterorhytis) monoceros, Sowerby 1840 [Muricidae]
- Murex (Pterorytis) (Conrad 1862) [Muricidae]
- Murex (Pterorytis) nuttalli (Conrad 1837) [Muricidae]
- Murex belcheri, Hinds 1843 [Muricidae]
- Murex festivus, Hinds 1844 [Muricidae]
- Murex nux, Reeve 1846 [Muricidae]
- Nassa cerritensis, R. Arnold 1903 [Nassariidae]
- Obeliscus variegata, Carpenter 1863 [Pyramidellidae]
- Ocinebra keepi, R. Arnold 1903 [Muricidae]
- Ocinebra lurida cancellinus, Philippi 1845 [unclassified subspecies]
- Ocinebra lurida cerritensis, R. Arnold 1903 [Muricidae]
- Ocinebra lurida munda, Carpenter 1863 [Muricidae]
- Ocinebra micheli (Ford 1888) [Muricidae]
- Ocinebra perita (Hinds 1844) [Muricidae]
- Ocinebra poulsoni, Carpenter 1864 [Neogastropoda]
- Ocinebrina foveolata (Hinds 1844) [Muricidae]
- Odostomia (Amaura) pupiformis (Carpenter 1865) [Pyramidellidae]
- Odostomia (Evalea) gouldii (Carpenter 1865) [Pyramidellidae]
- Opalia anomala, Stearns 1875 [Epitoniidae]
- Opalia crenatoides, Carpenter 1864 [Epitoniidae]
- Opalia crenatoides insculpta, Carpenter 1863 [Epitoniidae]
- Pachypoma inaequale (Martyn 1784) [Turbinidae]
- Paludestrina stokesi, R. Arnold 1903 [Hydrobiidae]
- Pecten (Chlamys) hericeus (Carpenter 1887) [Pectinidae]
- Pecten (Chlamys) jordani, R. Arnold 1903 [Pectinidae]
- Pecten (Chlamys) latiauritus fragilis, R. Arnold 1903 [Pectinidae]
- Pecten (Patinopecten) expansus (Dall 1879) [Pectinidae]
- Pecten (Pecten) dentatus (J. Sowerby 1829) [Pectinidae]
- Pecten (Plagioctenium) newsomi, R. Arnold 1903 [Pectinidae]
- Phorcus pulligo (Gmelin 1791) [Tegulidae]
- Pleurotoma (Borsonia) (Bellardi 1839) [Borsoniidae]
- Pleurotoma (Borsonia) bartschi, R. Arnold 1903 [Borsoniidae]
- Pleurotoma (Borsonia) dalli, R. Arnold 1903 [Borsoniidae]
- Pleurotoma (Borsonia) hooveri, R. Arnold 1903 [Borsoniidae]
- Pleurotoma (Dolichotoma) cooperi, R. Arnold 1903 [Turridae]
- Pleurotoma (Leucosyrinx) (Dall 1889) [Pseudomelaniidae]
- Pleurotoma (Leucosyrinx) pedroana, R. Arnold 1903 [Pseudomelaniidae]
- Pleurotoma (Spirotropsis) (Sars 1878) [Drilliidae]
- Pleurotoma (Spirotropsis) smithi, R. Arnold 1903 [Drilliidae]
- Purpura (Monoceros) (Lamarck 1809) [Muricidae]
- Purpura (Monoceros) lapilloides, Conrad 1837 [Muricidae]
- Purpura saxicola, Valenciennes 1846 [Muricidae]
- Pyramidella conica, C. B. Adams 1852 [Pyramidellidae]
- Scala hindsii (Carpenter 1856) [Epitoniidae]
- Scala tincta (Carpenter 1864) [Epitoniidae]
- Scalaria bellastriata, Carpenter 1863 [Epitoniidae]
- Scalaria crebricostata, Carpenter 1863 [Epitoniidae]
- Semele pulchra montereyi, R. Arnold 1903 [Semelidae]
- Solariella cidaris (A. Adams 1864) [Eucyclidae]
- Styliferina tenuisculpta (Carpenter 1864) [Cerithiidae]
- Terebra (Acus) simplex (Carpenter 1864) [Terebridae]
- Terebratalia smithi, R. Arnold 1903 [Terebrataliidae]
- Tivela crassatelloides (Conrad 1837) [Veneridae]
- Tornatina culcitella (Gould 1853) [Cylichnidae]
- Trivia californica (Gray 1827) [Triviidae]
- Trophon (Boreotrophon) cerritensis, R. Arnold 1903 [Muricidae]
- Trophon (Boreotrophon) multicostatus (Eschscholtz 1829) [Muricidae]
- Trophon (Boreotrophon) pedroana, R. Arnold 1903 [Muricidae]
- Trophon (Boreotrophon) scalariformis (Gould 1841) [Muricidae]
- Trophon (Boreotrophon) stuarti praecursor, R. Arnold 1903 [Muricidae]
- Trophon (Boreotrophon) triangulatus (Carpenter 1864) [Muricidae]
- Turbonilla (Lancea) tridentata (Carpenter 1865) [Pyramidellidae]
- Turbonilla (Pyrgiscus) laminata (Carpenter 1864) [Pyramidellidae]
- Turbonilla (Pyrgiscus) subcuspidata (Carpenter 1865) [Pyramidellidae]
- Turbonilla (Strioturbonilla) muricata (Carpenter 1856) [Pyramidellidae]
- Turbonilla (Strioturbonilla) torquata stylina (Gould 1853) [Pyramidellidae]
- Venus (Chione) neglecta (G. B. Sowerby I 1839) [Veneridae]
- Verticordia novemcostata (Adams and Reeve 1863) [Verticordiidae]
- Vitularia aspera, Baird 1863 [Muricidae]
- Volvarina varia (Sowerby I 1846) [Marginellidae]