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| Kingdom Animalia | 
|  | Amiantis callosa (Conrad, 1837) – valid – white venus | 
|  | Anodonta carinifera Conrad, 1837 – invalid | 
|  | Canthyria collina (Conrad, 1837) – invalid | 
|  | Ceratostoma nuttalli (Conrad, 1837) – valid | 
|  | Chione nuttalli (Conrad, 1837) – invalid | 
|  | Clinocardium nuttallii (Conrad, 1837) – valid – Nuttall cockle | 
|  | Codakia californica (Conrad, 1837) – invalid | 
|  | Cryptomya californica (Conrad, 1837) – valid – california softshell clam, California softshell | 
|  | Cumingia californica Conrad, 1837 – valid – California semele | 
|  | Donax californicus Conrad, 1837 – valid – California beanclam | 
|  | Elliptio collina (Conrad, 1837) – invalid | 
|  | Epilucina californica (Conrad, 1837) – valid – California lucine | 
|  | Euraphia Conrad, 1837 – valid | 
|  | Euraphia hembeli Conrad, 1837 – valid | 
|  | Fusconaia collina (Conrad, 1837) – invalid | 
|  | Heterodonax pacificus (Conrad, 1837) – valid – pacific false beanclam, Pacific false-bean | 
|  | Irus lamellifer (Conrad, 1837) – invalid | 
|  | Irusella lamellifera (Conrad, 1837) – valid – lamellar venus | 
|  | Laevicardium substriatum (Conrad, 1837) – valid – Pacific eggcockle | 
|  | Leptopecten latiauratus (Conrad, 1837) – valid – kelp scallop | 
|  | Lexingtonia subplana (Conrad, 1837) – invalid – Virginia pigtoe | 
|  | Lucina lintea Conrad, 1837 – invalid | 
|  | Lucinisca nuttalli (Conrad, 1837) – valid – Nuttall lucine | 
|  | Lyonsia californica Conrad, 1837 – valid – California lyonsia, island lyonsia | 
|  | Macoma nasuta (Conrad, 1837) – valid – bent-nose macoma | 
|  | Macoma secta (Conrad, 1837) – valid – white-sand macoma | 
|  | Mactra californica Conrad, 1837 – invalid – California surfclam | 
|  | Mactrotoma californica (Conrad, 1837) – valid – California surfclam | 
|  | Modiolus capax (Conrad, 1837) – valid – fat horsemussel | 
|  | Modiolus rectus (Conrad, 1837) – valid – straight horsemussel | 
|  | Mytilimeria Conrad, 1837 – valid | 
|  | Mytilimeria nuttalli Conrad, 1837 – valid – bladderclam | 
|  | Mytilus californianus Conrad, 1837 – valid – California mussel | 
|  | Nuttallia nuttallii (Conrad, 1837) – valid – mahogany clam, California mahogany-clam | 
|  | Pandora punctata Conrad, 1837 – valid – punctate pandora | 
|  | Parapholas californica (Conrad, 1837) – valid – scaleside piddock | 
|  | Parvaspina collina (Conrad, 1837) – valid – James spinymussel | 
|  | Pecten latiauratus Conrad, 1837 – invalid | 
|  | Penitella penita (Conrad, 1837) – valid – flap-tip piddock | 
|  | Petricola carditoides (Conrad, 1837) – valid – hearty petricolid, hearty petricola | 
|  | Pilsbryoconcha carinifera (Conrad, 1837) – valid | 
|  | Platyodon Conrad, 1837 – valid | 
|  | Platyodon cancellatus (Conrad, 1837) – valid – boring softshell clam, boring softshell | 
|  | Pleurobema collina (Conrad, 1837) – invalid – James River spinymussel, James spinymussel, Virginia spinymussel | 
|  | Protothaca staminea (Conrad, 1837) – valid – Pacific littleneck | 
|  | Pseudochama exogyra (Conrad, 1837) – valid – Pacific jewelbox | 
|  | Rupellaria carditoides (Conrad, 1837) – invalid – hearty rupellaria | 
|  | Saxidomus Conrad, 1837 – valid | 
|  | Saxidomus nuttalli Conrad, 1837 – valid – California butterclam | 
|  | Semele bellastriata (Conrad, 1837) – valid – cancellate semele | 
|  | Semele decisa (Conrad, 1837) – valid – clipped semele | 
|  | Septifer bifurcatus (Conrad, 1837) – valid – bifurcate mussel | 
|  | Siliqua lucida (Conrad, 1837) – valid – transparent razor | 
|  | Simomactra planulata (Conrad, 1837) – valid – flat surfclam | 
|  | Spisula planulata (Conrad, 1837) – invalid – flat surfclam | 
|  | Stramonita haemastoma floridana (Conrad, 1837) – valid – Florida rocksnail | 
|  | Tagelus californianus (Conrad, 1837) – valid – California tagelus | 
|  | Tagelus subteres (Conrad, 1837) – valid – lesser tagelus | 
|  | Tellina lentea Conrad, 1837 – invalid | 
|  | Thais haemastoma floridana (Conrad, 1837) – invalid – Florida rocksnail | 
|  | Thracia curta Conrad, 1837 – valid – short thracia | 
|  | Trachycardium quadragenarium (Conrad, 1837) – valid – spiny pricklycockle | 
|  | Tresus nuttalli (Conrad, 1837) – invalid | 
|  | Tresus nuttallii (Conrad, 1837) – valid – Pacific gaper | 
|  | Unio collinus Conrad, 1837 – invalid | 
|  | Unio politus Conrad, 1837 – invalid | 
|  | Unio rudis Conrad, 1837 – invalid | 
|  | Unio subplanus Conrad, 1837 – invalid | 
        
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