Opinions from A. A. Olsson 1922

  • 'Abra triangulata belongs to Abra'
  • 'Actaeon costaricensis belongs to Actaeon'
  • 'Acteocina (Cylichnella) triticumtritonis belongs to Acteocina (Cylichnella)'
  • 'Acteocina bullata costaricana belongs to Acteocina bullata'
  • 'Agriopoma gatunensis is recombined as Callocardia (Agriopoma) gatunensis'
  • 'Alaba turrita belongs to Alaba' according to Guppy 1896
  • 'Alectrion losquemadica belongs to Alectrion'
  • 'Alectrion merenda belongs to Alectrion'
  • 'Alectrion ranuncula belongs to Alectrion'
  • 'Amphidesma laevis is recombined as Semele laevis'
  • 'Amusium bocasense belongs to Amusium'
  • 'Anomia simplex belongs to Anomia'
  • 'Antigona harrisiana belongs to Antigona'
  • 'Arca (Barbatia) mauryae belongs to Arca (Barbatia)'
  • 'Arca (Scapharca) costaricensis belongs to Arca (Scapharca)'
  • 'Arca (Scapharca) honensis belongs to Arca (Scapharca)'
  • 'Arca (Scapharca) pittieri is recombined as Arca (Cunearca) pittieri'
  • 'Arca auriculata is recombined as Arca (Scapharca) auriculata'
  • 'Arca candida is recombined as Arca (Calloarca) candida'
  • 'Arca dariensis is recombined as Arca (Scapharca) dariensis'
  • 'Arca decussata is recombined as Glycymeris decussatus'
  • 'Arca golfoyaquensis belongs to Arca' according to Maury 1917
  • 'Arca golfoyaquensis is recombined as Arca (Scapharca) golfoyaquensis'
  • 'Arca hindsi belongs to Arca'
  • 'Arca macdonaldi is recombined as Arca (Noetia) macdonaldi'
  • 'Arca occidentalis belongs to Arca'
  • 'Arca umbonata belongs to Arca'
  • 'Artemis acetabulum is recombined as Dosinia acetabulum'
  • 'Artemis subquadrata belongs to Artemis' according to Hanley 1844
  • 'Artemis subquadrata is recombined as Cyclinella subquadrata'
  • 'Avicula inornata is recombined as Pteria inornata'
  • 'Borsonia cocoensis belongs to Borsonia'
  • 'Buccinum flammeum belongs to Buccinum' according to Linnaeus 1758
  • 'Buccinum flammeum is recombined as Cassis flammea'
  • 'Calliostoma castilla belongs to Calliostoma'
  • 'Calloarca was reranked as Arca (Calloarca) and belongs to Arca'
  • 'Cancellaria (Aphera) islacolonis is recombined as Cancellaria islacolonis'
  • 'Cancellaria barretti belongs to Cancellaria'
  • 'Cancellaria dariena belongs to Cancellaria'
  • 'Cancellaria epistomifera belongs to Cancellaria'
  • 'Cancellaria rowelli belongs to Cancellaria'
  • 'Cancellaria toroensis belongs to Cancellaria'
  • 'Cardita conradiana belongs to Cardita' according to Gabb 1881
  • 'Cardita conradiana is recombined as Venericardia (Pleuromeris) conradiana'
  • 'Cardita matima belongs to Cardita'
  • 'Cardita scabricostata is recombined as Venericardia scabricostata'
  • 'Cardium (Trachycardium) dominicense belongs to Cardium (Trachycardium)'
  • 'Cardium (Trachycardium) stiriatum belongs to Cardium (Trachycardium)'
  • 'Cardium heredium belongs to Cardium'
  • 'Cardium medium is recombined as Cardium (Fragum) medium'
  • 'Cardium serratum is recombined as Cardium (Laevicardium) serratum'
  • 'Cardium spinosum is recombined as Cardium (Papyridea) spinosum'
  • 'Caryatis guppyana belongs to Caryatis' according to Gabb 1881
  • 'Caryatis guppyana is recombined as Pitaria guppyana'
  • 'Cassidaria laevigata is recombined as Sconsia laevigata'
  • 'Cassis monilifera is recombined as Phalium moniliferum'
  • 'Cassis sulcifera belongs to Cassis'
  • 'Cerithium costaricensis belongs to Cerithium'
  • 'Chama antiquata belongs to Chama' according to Guppy 1866
  • 'Chama antiquata is recombined as Echinochama antiquata'
  • 'Chama congregata belongs to Chama'
  • 'Chione costaricensis belongs to Chione'
  • 'Chione hotelensis belongs to Chione'
  • 'Chione rowleei belongs to Chione'
  • 'Chione ulocyma holocyma belongs to Chione ulocyma' according to Brown and Pilsbry 1911
  • 'Chione ulocyma holocyma is recombined as Chione holocyma'
  • 'Chlorostoma costaricensis belongs to Chlorostoma'
  • 'Clava alajuela belongs to Clava'
  • 'Clava costaricana belongs to Clava'
  • 'Columbella ambigua belongs to Columbella' according to Guppy 1866
  • 'Columbella ambigua is recombined as Strombina ambigua'
  • 'Conus (Cheliconus) tortuosopunctatus is recombined as Conus tortuosopunctatus'
  • 'Conus (Chelyconus) tortuosostriatus belongs to Conus (Chelyconus)'
  • 'Conus burckhardti belongs to Conus'
  • 'Conus concavitectum belongs to Conus'
  • 'Conus gracilissimus belongs to Conus'
  • 'Conus granozonatus belongs to Conus'
  • 'Conus imitator belongs to Conus'
  • 'Conus limonensis belongs to Conus'
  • 'Conus marginatus belongs to Conus'
  • 'Conus molis belongs to Conus'
  • 'Conus planiliratus belongs to Conus'
  • 'Conus planiliratus bocasensis belongs to Conus planiliratus'
  • 'Conus proteus belongs to Conus'
  • 'Conus recognitus belongs to Conus'
  • 'Conus stenostoma is corrected as Conus stenostomus and belongs to Conus'
  • 'Coralliophila gatunensis is a subjective synonym of Solenosteira dalli'
  • 'Corbula dietziana belongs to Corbula' according to C. B. Adams 1852
  • 'Corbula dietziana belongs to Corbula'
  • 'Corbula oropendula belongs to Corbula'
  • 'Corbula orosi belongs to Corbula'
  • 'Corbula vieta belongs to Corbula'
  • 'Corbula viminea belongs to Corbula'
  • 'Crassatellites (Crassinella) bowdenensis belongs to Crassatellites (Crassinella)'
  • 'Crassatellites (Crassinella) midiensis belongs to Crassatellites (Crassinella)'
  • 'Crassatellites reevei belongs to Crassatellites'
  • 'Crepidula plana belongs to Crepidula'
  • 'Crepitacella limonensis belongs to Crepitacella'
  • 'Cyclinella subquadrata quitana belongs to Cyclinella subquadrata'
  • 'Cypraea dominicensis belongs to Cypraea'
  • 'Cypraea parisimina belongs to Cypraea'
  • 'Cythara terminula costaricensis belongs to Cythara terminula'
  • 'Cytharella limata belongs to Cytharella'
  • 'Dentalium (Fissidentalium) uscarianum belongs to Dentalium (Fissidentalium)'
  • 'Dentalium bocasensis belongs to Dentalium'
  • 'Diplodonta collina belongs to Diplodonta'
  • 'Drillia aquansis belongs to Drillia'
  • 'Drillia aurantia belongs to Drillia'
  • 'Drillia carruca belongs to Drillia'
  • 'Drillia citria belongs to Drillia'
  • 'Drillia coccos belongs to Drillia'
  • 'Drillia cocosina belongs to Drillia'
  • 'Drillia cristobali belongs to Drillia'
  • 'Drillia limonensis belongs to Drillia'
  • 'Drillia limonica belongs to Drillia'
  • 'Drillia lithocolletoides belongs to Drillia'
  • 'Drillia moensis belongs to Drillia' according to Gabb 1881
  • 'Drillia moensis belongs to Drillia'
  • 'Drillia musa belongs to Drillia'
  • 'Drillia theobroma belongs to Drillia'
  • 'Echinochama antiquata yaquensis belongs to Echinochama antiquata' according to Maury 1917
  • 'Echinochama antiquata yaquensis is recombined as Echinochama yaquensis'
  • 'Euchilodon morierei is recombined as Scobinella morierei'
  • 'Fasciolaria gorgasiana belongs to Fasciolaria'
  • 'Fusus miocosmius belongs to Fusus'
  • 'Gafrarium (Gouldia) altum is recombined as Gafrarium altum'
  • 'Gafrarium limonensis belongs to Gafrarium'
  • 'Gastrochaena rotunda belongs to Gastrochaena' according to Dall 1915
  • 'Gastrochaena rotunda belongs to Gastrochaena'
  • 'Glycymeris canalis belongs to Glycymeris'
  • 'Glycymeris carbasina belongs to Glycymeris'
  • 'Glycymeris jamaicensis belongs to Glycymeris'
  • 'Glycymeris lloydsmithi belongs to Glycymeris'
  • 'Glycymeris trilobicostata is a subjective synonym of Glycymeris canalis'
  • 'Glyphostoma dentiferum is corrected as Glyphostoma dentifera and belongs to Glyphostoma'
  • 'Gratelupia mactropsis is recombined as Chione mactropsis'
  • 'Latirus infundibulum belongs to Latirus'
  • 'Latirus irazu belongs to Latirus'
  • 'Latirus taurus belongs to Latirus'
  • 'Leda (Adrana) dalliana belongs to Leda (Adrana)'
  • 'Leda (Adrana) ensinoides belongs to Leda (Adrana)'
  • 'Leda (Adrana) quitanensis belongs to Leda (Adrana)'
  • 'Leda balboae belongs to Leda'
  • 'Leda davilae belongs to Leda'
  • 'Limea is corrected as Limaea and belongs to Bivalvia'
  • 'Limea solida belongs to Limea' according to Dall 1898
  • 'Limea solida is recombined as Limaea solida'
  • 'Limopsis monilis belongs to Limopsis'
  • 'Lophocardium was reranked as Protocardia (Lophocardium) and belongs to Protocardia'
  • 'Lucina cristata is recombined as Tellidora cristata'
  • 'Lucina quadrisulcata is recombined as Divaricella quadrisulcata'
  • 'Lucina radians is recombined as Phacoides (Callucina) radians'
  • 'Lucina trisulcata is recombined as Phacoides (Here) trisulcatus'
  • 'Lutraria lineata is recombined as Labiosa lineata'
  • 'Macoma (Psammacoma) panamensis belongs to Macoma (Psammacoma)' according to Dall 1900
  • 'Macoma (Psammacoma) panamensis belongs to Macoma (Psammacoma)'
  • 'Macoma (Tellina) gatunensis is recombined as Macoma (Psammacoma) gatunensis'
  • 'Macoma costaricana belongs to Macoma'
  • 'Mactra alata is recombined as Mactra (Mactrella) alata'
  • 'Mactra exoleta belongs to Mactra' according to Garay 1837
  • 'Mactra exoleta is recombined as Mactra (Mactrella) exoleta'
  • 'Mactra lateralis is recombined as Mulinia lateralis'
  • 'Mactra sincola belongs to Mactra'
  • 'Malea elliptica belongs to Malea'
  • 'Marginella avena belongs to Marginella'
  • 'Marginella latissima belongs to Marginella'
  • 'Marginella latissima pilsbryi belongs to Marginella latissima'
  • 'Marginella leander belongs to Marginella'
  • 'Marginella macdonaldi belongs to Marginella' according to Dall 1912
  • 'Marginella macdonaldi belongs to Marginella'
  • 'Marginella mindiensis belongs to Marginella' according to Cossmann 1913
  • 'Marginella mindiensis belongs to Marginella'
  • 'Marginella musacina belongs to Marginella'
  • 'Meretrix dariena is recombined as Clementia dariena'
  • 'Mesodesma costaricensis belongs to Mesodesma'
  • 'Metis barba belongs to Metis'
  • 'Metula cancellata belongs to Metula'
  • 'Metula gabbi belongs to Metula'
  • 'Metula harrisi belongs to Metula'
  • 'Metula harrisi limonensis belongs to Metula harrisi'
  • 'Mitra almagrensis belongs to Mitra' according to Toula 1911
  • 'Mitra almagrensis belongs to Mitra'
  • 'Mitra almagrensis coralliophila belongs to Mitra almagrensis'
  • 'Mitra dariensis belongs to Mitra'
  • 'Mitra longa belongs to Mitra'
  • 'Mitra poas belongs to Mitra'
  • 'Mitra rudis belongs to Mitra'
  • 'Mitra swainsoni limonensis belongs to Mitra swainsoni'
  • 'Mulinia lateralis sauryensis belongs to Mulinia lateralis'
  • 'Murex cornurectus is recombined as Murex (Phyllonotus) cornurectus'
  • 'Murex messorius belongs to Murex'
  • 'Murex tulipa is recombined as Fasciolaria tulipa'
  • 'Nassa northiae is recombined as Northia northiae'
  • 'Natica guppiana is corrected as Natica guppyana and belongs to Natica'
  • 'Natica subclausa is recombined as Polinices subclausa'
  • 'Natica youngi belongs to Natica'
  • 'Natica youngi cocleana belongs to Natica youngi'
  • 'Nerita canrena is recombined as Natica canrena'
  • 'Neritina (Smaragdia) viridemaris is recombined as Neritina viridemaris'
  • 'Neverita nereidis belongs to Neverita' according to Maury 1917
  • 'Neverita nereidis belongs to Neverita'
  • 'Northia northiae miocenica belongs to Northia northiae'
  • 'Nucula orbicella belongs to Nucula'
  • 'Nucula tenuisculpta belongs to Nucula'
  • 'Oliva brevispira belongs to Oliva'
  • 'Oliva cylindrica belongs to Oliva'
  • 'Oliva gatunensis belongs to Oliva'
  • 'Oliva multicoides is recombined as Olivella muticoides'
  • 'Oliva sayana immortua belongs to Oliva sayana'
  • 'Oliva testacea costaricensis belongs to Oliva testacea'
  • 'Olivella boussaci belongs to Olivella'
  • 'Olivella goliath belongs to Olivella'
  • 'Olivella limonensis belongs to Olivella'
  • 'Olivella limonensis bocasensis belongs to Olivella limonensis'
  • 'Ostrea megodon belongs to Ostrea'
  • 'Pecten (Aequipecten) preglyptus belongs to Pecten (Aequipecten)'
  • 'Pecten (Amusium) luna is recombined as Amusium luna'
  • 'Pecten (Cyclopecten) oligolepis is recombined as Pecten oligolepis'
  • 'Pecten (Flabellipecten) gatunensis is recombined as Pecten gatunensis'
  • 'Pecten aotus belongs to Pecten'
  • 'Pecten coralliphila belongs to Pecten'
  • 'Pecten levicostatus is recombined as Pecten (Chlamys) levicostatus'
  • 'Pecten macdonaldi belongs to Pecten'
  • 'Pectunculus castaneus is recombined as Glycymeris castaneus'
  • 'Peristernia insula belongs to Peristernia'
  • 'Peristernia tortugera belongs to Peristernia'
  • 'Petaloconchus sculpturatus belongs to Petaloconchus'
  • 'Phacoides (Bellucina) actinus is recombined as Phacoides (Parvilucina) actinus'
  • 'Phacoides (Lucinisca) costaricensis belongs to Phacoides (Lucinisca)'
  • 'Phasianella mollis belongs to Phasianella'
  • 'Phos beteyensis belongs to Phos'
  • 'Phos elegans limonensis belongs to Phos elegans'
  • 'Phos estrellensis belongs to Phos'
  • 'Phos gatunensis belongs to Phos'
  • 'Phos metuloides belongs to Phos'
  • 'Phos mexicanus belongs to Phos'
  • 'Phos moorei belongs to Phos'
  • 'Phos moorei costaricensis belongs to Phos moorei'
  • 'Phos subsemicostatus belongs to Phos'
  • 'Pitaria (Lamelliconcha) hillii is recombined as Pitaria hillii'
  • 'Pitaria boucaryensis belongs to Pitaria'
  • 'Pitaria hillii musanica belongs to Pitaria hillii'
  • 'Placunanomia lithobleta belongs to Placunanomia'
  • 'Pleurotoma (Ancistrosyrinx) elegans is recombined as Ancistrosyrinx elegans'
  • 'Pleurotoma albida is recombined as Turris albida'
  • 'Pleurotoma consors is recombined as Drillia consors'
  • 'Pleurotoma venusta is recombined as Drillia venusta'
  • 'Plicatula marginata belongs to Plicatula'
  • 'Polinices stanislasmeunieri belongs to Polinices'
  • 'Porcellana cinerea is recombined as Cypraea cinerea'
  • 'Protocardia costaricensis belongs to Protocardia'
  • 'Protocardia gurabica is recombined as Protocardia (Lophocardium) gurabica'
  • 'Psammacoma gatunensis costaricensis belongs to Psammacoma gatunensis'
  • 'Psammosolen gatunensis costaricensis belongs to Psammosolen gatunensis'
  • 'Ptychosalpinx dentalis belongs to Ptychosalpinx'
  • 'Purpura nodulosa belongs to Purpura' according to C. B. Adams 1845
  • 'Purpura nodulosa is recombined as Sistrum nodulosum'
  • 'Pyrula consors is recombined as Melongena consors'
  • 'Ranella crassa is recombined as Bursa crassa'
  • 'Ringicula dominicana belongs to Ringicula'
  • 'Sanguinolaria alouatta belongs to Sanguinolaria'
  • 'Scapharca (Scapharca) actinophora is recombined as Arca (Scapharca) actinophora'
  • 'Scapharca henekeni is recombined as Arca (Scapharca) henekeni'
  • 'Scaphella costaricana belongs to Scaphella'
  • 'Semele claytoni belongs to Semele'
  • 'Semele sayi belongs to Semele'
  • 'Siliquaria modesta belongs to Siliquaria' according to Dall 1881
  • 'Siliquaria modesta belongs to Siliquaria'
  • 'Siliquaria modesta limonensis belongs to Siliquaria modesta'
  • 'Solarium granulatum is recombined as Architectonica granulata'
  • 'Solecurtus gatunensis is recombined as Psammosolen gatunensis'
  • 'Solenosteira chiriquiensis belongs to Solenosteira'
  • 'Solenosteira dalli belongs to Solenosteira'
  • 'Solenosteira vaughani belongs to Solenosteira' according to Dall 1903
  • 'Solenosteira vaughani medioamericana belongs to Solenosteira vaughani'
  • 'Spondylus chiriquiensis belongs to Spondylus'
  • 'Spondylus gumanomocon belongs to Spondylus'
  • 'Strigilla musanica belongs to Strigilla'
  • 'Strombina cricamola belongs to Strombina'
  • 'Strombina lessepsiana belongs to Strombina'
  • 'Strombina matima belongs to Strombina'
  • 'Strombus gatunensis belongs to Strombus'
  • 'Strombus pugiloides belongs to Strombus'
  • 'Tagelus cebus belongs to Tagelus'
  • 'Tapes grus is recombined as Chione grus'
  • 'Tellina (Merisca) nasua belongs to Tellina (Merisca)'
  • 'Tellina (Phyllodina) lepidota is recombined as Tellina lepidota'
  • 'Tellina (Scissula) cercadica is recombined as Tellina cercadica'
  • 'Tellina costaricana belongs to Tellina'
  • 'Tellina cristallina is recombined as Tellina (Arcopagia) crystallina'
  • 'Tellina dariena belongs to Tellina'
  • 'Tellina pisiformis is recombined as Strigilla pisiformis'
  • 'Tellina rovala belongs to Tellina'
  • 'Tellina umbra is recombined as Tellina (Angulus) umbra'
  • 'Terebra (Acus) benthalis belongs to Terebra (Acus)' according to Dall 1889
  • 'Terebra (Acus) benthalis is recombined as Terebra benthalis'
  • 'Terebra (Acus) bipartita spirifera is recombined as Terebra spirifera'
  • 'Terebra (Oxymeria) gatunensis is recombined as Terebra gatunensis'
  • 'Terebra (Oxymeria) wolfgangi is recombined as Terebra wolfgangi'
  • 'Terebra benthalis bocasensis belongs to Terebra benthalis'
  • 'Terebra berlinerae belongs to Terebra'
  • 'Terebra bipartita belongs to Terebra'
  • 'Terebra costaricensis belongs to Terebra'
  • 'Terebra estrellana belongs to Terebra'
  • 'Terebra gausapata belongs to Terebra'
  • 'Terebra haitensis belongs to Terebra'
  • 'Terebra pumbriensis belongs to Terebra'
  • 'Terebra spirifera midiensis belongs to Terebra spirifera'
  • 'Terebra subsulcifera belongs to Terebra'
  • 'Thracia (Cyathodonta) tristani belongs to Thracia (Cyathodonta)'
  • 'Triton simillimus is recombined as Distortrix simillima'
  • 'Trochus brevispina is recombined as Astralium brevispinum'
  • 'Trochus caelatus is recombined as Astralium caelatum'
  • 'Trochus conchyliophorus is recombined as Xenophora conchyliophora'
  • 'Turbo exoletus is recombined as Turritella exoleta'
  • 'Turbo saltus belongs to Turbo'
  • 'Turricula taurina belongs to Turricula'
  • 'Turricula terryi belongs to Turricula'
  • 'Turritella altilira belongs to Turritella'
  • 'Turritella altilira costaricensis belongs to Turritella altilira'
  • 'Turritella exoleta limonensis belongs to Turritella exoleta'
  • 'Turritella gatunensis belongs to Turritella'
  • 'Turritella mimetes belongs to Turritella'
  • 'Turritella oreodoxa belongs to Turritella'
  • 'Typhis alatus belongs to Typhis'
  • 'Typhis linguliferus costaricensis belongs to Typhis linguliferus'
  • 'Venus (Chione) ulocyma is recombined as Chione ulocyma'
  • 'Venus blandiana is recombined as Antigona blandiana'
  • 'Venus circinata is recombined as Pitaria circinata'
  • 'Venus maculata is recombined as Macrocallista maculata'
  • 'Venus multicostata is recombined as Antigona multicostata'
  • 'Venus rugosa belongs to Venus' according to Gmelin 1792
  • 'Venus rugosa is recombined as Antigona rugosa'
  • 'Venus tarquinia is recombined as Antigona tarquina'
  • 'Vermetus papulosa is recombined as Serpulorbis papulosa'
  • 'Voluta alfaroi belongs to Voluta'
  • 'Volvula cylindrica belongs to Volvula'
  • 'Xancus scopulus belongs to Xancus'
  • 'Yoldia bocasensis belongs to Yoldia'