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Species beginning with At . . .

atacamae, Saginofusca atahualpa, Cylichna ataktos, Eulimella * atalaya, Cerithiopsis
* atalina, Oliva * atalina stainforthii (f), Oliva atava, Cypraea atella, Nassarina
atemeles, Iravadia * ater, Clanculus * ater, Faunus ater (f), Conus ventricosus
* ater (f), Hinea fasciata * ateralbus, Conus ateralbus, Monophorus aterima, Batillaria
aterimmum, Batillaria aterrima, Nerita * aterrima, Pilsbryspira atervisceralis, Eatoniella
athadona, Columbella athadona, Flabellina * athenia, Oliva * athenius, Dolomena variabilis
athleenae, Anticlimax * athletica (f), Patella ulyssiponensis athyrma, Drillia * atjehensis, Mitra
atjehensis, Turricula tornata * atkana, Littorina sitkana atkinae (f), Urosalpinx cinerea atkinsoni, Anachis
atkinsoni, Colpospira atkinsoni, Drillia atkinsoni, Lucidestea atkinsoni, Solatisonax
atkinsoni, Sukashitrochus atkinsoni (f), Inquisitor crenularis atlantica, Anatoma atlantica, Carinaria
* atlantica, Casmaria ponderosa atlantica, Charonia atlantica, Coralliophila atlantica, Cylichna
* atlantica, Cypraeovula iutsui atlantica, Diacria atlantica, Exilioidea * atlantica, Laevinesta
atlantica, Mangilia * atlantica, Melanella atlantica, Neritopsis atlantica, Pleurotomella
atlantica, Triphora atlantica, Turbonilla atlantica (f), Drilliola emendata * atlantica (f), Erosaria spurca
atlantica (f), Manzonia crassa crassa * atlantica (f), Ranella gigantea atlantica atlantica, Mangiliella atlantica curta (f), Pleurotomella
atlantica elongata, Mangiliella atlantica elongata (f), Pleurotomella atlantica minor (f), Pleurotomella * atlanticoselvagem, Conus
atlanticum, Gyrineum * atlanticum, Monostiolum atlanticum, Pneumoderma * atlanticus, Conus spurius
atlanticus, Ficus * atlanticus, Glaucus atlanticus, Lepetodrilus * atlanticus, Perotrochus
atlanticus, Pleurobranchus atlanticus, Thliptodon * atlanticus notialis (f), Perotrochus atlantidea, Brachycithara
atlantidea, Gibberula * atlantideus, Nassarius atlantideus, Pterynotus atlantidis, Caecum
atlantis, Calliostoma atlantis, Fulgurofusus atlantis, Opaliopsis atlantis, Poirieria
atlantis, Scaphella atlantoides, Calliostoma atoma, Pupatonia atomaria, Cingula
atomaria, Crithe atomaria, Eatonina * atomaria, Niveria atomaria, Paludina
* atomaria, Ransoniella punctata atomarius, Conus atomus, Epitonium atomus, Ganesa
atomus, Omalogyra atomus, Plesiocystiscus atomus, Rissoa atomus, Rissoa
atomus, Triphora atomus burwoodiana (f), Omalogyra atomus maculata (f), Omalogyra atomus nautiliformis (f), Omalogyra
atomus ornata (f), Omalogyra atomus polyzona (f), Omalogyra atopodonta, Bonellitia atoxica, Abyssobela
atra, Cypraea atra, Planaxis atra, Polycera atra, Protaeolidiella
atra, Rugocythara derilicta atra, Siphonaria * atra, Tegula atra (f), Donovania mamillata
atra (f), Donovania minima atra (f), Donovania turritellata atra (f), Lachesis minima atra (f), Mangelia rugulosa
atra (f), Mangilia albida atra (f), Mangiliella multilineolata atra (f), Mangiliella multilineolata multilineolata atra (f), Philbertia bucquoyi
atra (f), Raphitoma corbis atra (f), Raphitoma laviae atra (f), Raphitoma purpurea purpurea * atracta, Alaginella
atractina, Sandalia * atractoides, Daphnella atractoides aethiopica, Bathytoma * atractoides atractoides, Bathytoma
* atractoides boholica, Bathytoma atractoides obsolescens, Bathytoma atractus, Conus * atramentaria, Anachis
atramentaria (f), Batillaria zonalis * atramentosa, Lovellona atramentosa, Nacella * atramentosa, Nerita
atramentosa, Pilsbryspira atrasolea, Crepidula * atrata, Acteocina * atrata, Collisella
atrata, Cypraea atrata, Cypraea atrata, Fissurella atrata, Nassaria
atrata, Nerita atrata, Nerita atrata, Pleurotoma atrata, Pleurotoma
atrata, Siphonaria atrata, Zafra atrata, Zoila * atrata (f), Angaria delphinus delphinus
atrata (f), Cypraea stercoraria atrata (f), Zoila thersites thersites * atrata atrata, Monodonta * atrata trappei, Monodonta
atratum, Cerithium * atratum, Cerithium * atratum, Herpetopoma atratum chadel (f), Cerithium
atratum graciliforme (f), Cerithium atratum striatissima (f), Cerithium atratum umbonata (f), Cerithium * atratus, Monophorus
atrella, Eatoniella atreolineata, Bulla * atricatenus, Clanculus * atriceps (f), Luria controversa
atrior, Crassispira atrocyanea, Natica atromaculata, Discodoris atromarginata, Discodoris
* atromarginata, Glossodoris * atromarginatum, Cerithium atromarginatum maculosa (f), Cerithium atromarginatum nassoides (f), Cerithium
atropurpurea, Clavatula atropurpurea, Eatoniella atropurpurea, Ocenebra atropurpurea, Philbertia
atropurpureus, Clanculus * atrostyla, Kurtziella atroviridis, Elysia attalia, Elaeocyma
attentia, Canalispira * attenuans, Aclis attenuata, Etrema kitcheni * attenuata, Mangelia
attenuata, Marginella attenuata, Melanella attenuata, Mitra attenuata, Odostomia acuta
attenuata, Oliva attenuata, Opalia attenuata, Scaphander attenuata, Syrnola
attenuata, Trochaclis attenuata, Turbinella attenuata, Turbonilla attenuata, Turritella
attenuata, Volvarina attenuata, Zemitrella * attenuata, Ziba attenuata (f), Aquillus dolarius
attenuata (f), Assiminea francesiae attenuata (f), Bela pygmaea attenuata (f), Cerithium lividulum attenuata (f), Cerithium zebrum
attenuata (f), Donovania minima attenuata (f), Donovania turritellata attenuata (f), Fusus turtoni attenuata (f), Lachesis minima
attenuata (f), Pleurotoma talismani attenuata (f), Weinkauffia canariensis attenuata attenuata, Philbertia attenuata gracilis (f), Odostomia acuta
attenuata payraudeauti, Philbertia attenuatispira, Triforis * attenuatum, Bittium attenuatum, Caecum
attenuatum, Cerithium attenuatum, Parviscala attenuatum brevicaudata (f), Cerithium attenuatus, Aeneator
* attenuatus, Conus attenuatus, Fusus attenuatus, Melanopsis attenuatus, Tornus
* attenuatus, Tosatrochus attenuatus, Volutopsius * attenuatus ustickei (f), Conus atticae, Asthenotoma ornata
attonsa, Cylichna atwoodi, Amaea atypha, Gymnobela atypha, Melanella
atypha, Natica atypha, Turbonilla atypica, Acremodontina atypicus, Clanculus
atys, Bulla * auberiana, Hydrobia * auberiana, Ithycythara auberii, Cylichna
auberti, Nymphispira aubryana, Cypraea aubryana, Vexillum * aubryana (f), Propustularia surinamensis
aubryanum, Glyphostoma aubulata, Palisadia aucklandica, Laevilitorina aucklandica, Melanella
aucklandica, Odostomia aucklandica, Thoristella chathamensis aucklandica, Thysanodonta aucklandicus, Axymene traversi
audax, Diodora audax, Drillia * audouini, Avalitiscala audouini, Cerithium
audouini, Fasciolaria audouini gracilior (f), Fasciolaria audreyae, Gibberula augerea, Volvarina
augmenta, Microdiscula * augur, Conus augur, Conus augusta, Gymnobela
augusta augusta, Paracomitas augusta powelli, Paracomitas augustae, Fenimorea augustoi, Pseudacteon
augustum, Dentimargo augustus, Murex augustus, Strombus aulaca alaskana, Aforia
aulaca aulaca, Aforia * aulacodes, Eudolium aulacoessa, Daphnella aulacoglossa, Polinices
aulaea, Haliotis * aulica aulica, Cymbiola * aulica cathcartiae, Cymbiola aulicum, Calliostoma
* aulicus, Conus * aulicus aurantia (f), Conus * aulicus gracianus (f), Conus * aulicus propenudus (f), Conus
aulicus roseus (f), Conus aupouria, Alvania aupouria, Anatoma aupouria, Curveulima
aupouria, Lissotesta aupouria, Mathilda aupouria, Mesoginella aupouria, Munditia
aupouria, Nototriphora aupouria, Onoba aupouria, Pectinodonta aupouria, Pisinna subfusca
aupouria, Retusa aupouria, Rissoina aupouria, Terelimella aupouria, Tornus
aupouria, Turboella aupouria, Zeadmete aupouria aupouria, Liarea aupouria tara, Liarea
aupourianum, Calliostoma aura, Orbitestella * aurantia, Anachis aurantia, Dirona
* aurantia, Gibbula * aurantia, Marginella aurantia, Mitra aurantia, Murex
aurantia, Nerita aurantia, Opalia aurantia, Pterocera aurantia (f), Apicularia frauenfeldiana
* aurantia (f), Conus amadis * aurantia (f), Conus aulicus aurantia (f), Eucithara vexillum * aurantia (f), Fulgoraria rupestris
* aurantia (f), Provocator mirabilis aurantia (f), Pseudomelatoma torosa * aurantia aurantia, Mitra aurantia aurantia limbifera (f), Mitra
* aurantia aurantia nanus (f), Mitra aurantia limbifera (f), Mitra aurantia * aurantia nanus (f), Mitra aurantia * aurantia subruppeli, Mitra
aurantiaca, Cerithiopsis * aurantiaca, Cronia aurantiaca, Cuthona aurantiaca, Fasciolaria
aurantiaca, Manzonia aurantiaca, Melanodrymia aurantiaca, Mitra * aurantiaca, Pleuroploca
aurantiaca, Rissoa aurantiaca (f), Oliva miniacea miniacea aurantiaca aurantiaca, Bouvieria aurantiaca brunnea (f), Pleuroploca
aurantiaca elongata, Bouvieria aurantiaca purpura (f), Pleuroploca aurantiacum, Pterocera aurantiacus, Latirus
aurantiacus, Latirus aurantiacus, Onchidiopsis aurantiocincta, Crassitoniella * aurantiomacula, Pseudosimnia
aurantiomaculata, Halgerda aurantiomarginata, Polycera aurantionodulosa, Diversidoris * aurantium, Haliotis
* aurantium, Lyncina * aurantium, Phenacovolva aurantium turanga, Cypraea * aurantius, Conus
* aurantius, Plicifusus * aurantius, Polinices * aurantius, Turbo aurata, Gibberula
aurata, Mitra aurata, Runcina aurata, Trapania * aurata, Zoila jeaniana
aurata (f), Cerithium vulgatum * aurata (f), Oliva bulbosa * aurata (f), Oliva oliva * auratinus, Conus
* auratum, Bembicium auratum, Monostiolum auratus, Conus auratus, Conus
auratus, Muricopsis auratus, Strombus aurea, Cerithiopsis aurea, Clathurella
aurea, Cyrtocythara aurea, Doriopsilla aurea, Glabella * aurea, Nacella deaurata
aurea (f), Patella vulgata vulgata aurea lactea (f), Cyrtocythara aureamala, Rostanga aurelia, Marginella
aurelius, Conus * aureobalteata, Olivella aureocallosa, Amalda aureocallosa, Ancillista
aureocincta, Olivella * aureocinctum, Pseudocyphoma * aureocinctus, Dentimargo aureocinctus, Latirus
* aureofasciatus, Conus spurius * aureola, Bolma aureola, Cassis aureola, Cypraea
* aureola, Daphnella aureola, Eumetula aureola, Glossodoris * aureola, Primovula
aureola, Pyrene aureolatum, Vexillum * aureolineatum, Vexillum * aureolus, Conus
aureolus patglicksteinae (f), Conus aureolutea, Amauropsis * aureomaculatum, Epitonium * aureomarginata, Amalda
aureomarginata, Chromodoris aureomarginatus, Stiliger * aureomexicana, Columbella * aureonimbosus (f), Conus anabathrum anabathrum
aureonodosa, Pilsbryspira aureopunctata, Chelidonura aureopunctata, Noumea aureopunctata, Trapania
* aureopunctatus, Conus * aureopurpurea, Chromodoris * aureotincta, Tegula aureotincta (f), Philbertia tincta
aureovincta, Isotriphora aureozona, Tectonatica * aureum, Astralium * aureum, Epidendrium
aureus, Amalda aureus, Conus * aureus, Conus aureus, Fusus
aureus, Serpulorbis * aureus paulucciae (f), Conus * auricincta, Eulima * auricincta, Turritella
auricoma, Cypraea auricoma, Pyramidella auricoma (f), Cerithium guinaicum auricomata, Cypraea
* auricomus, Conus auricomus, Conus * auricomus dactylosus (f), Conus * auricula, Crucibulum
auricula, Microstilifer auricula, Stomatella * auricularia, Dolabella * auricularia, Olivancillaria vesica
* auriculata, Facelina * auriculata, Ringicula auriculata, Rissoa auriculata (f), Nerita balteata
* auriculatum, Caecum * auriculatum, Neritina * auriculatum decurtata (f), Caecum auriculifera, Clavus
auriculoides, Mitra aurifer, Conus aurifera, Assiminea aurifila, Opalia
auriformis, Incisura auriformis, Philine auriformis, Pleurotoma auriformis, Rissoa hyalina
auriformis auriformis, Rissoa auriformis pseudomonodonta, Rissoa aurigena apeliota, Neptunea aurigena aurigena, Neptunea
* auriger (f), Conus textile textile aurigera, Chromodoris auriscalpia (f), Cerithium vulgatum * auriscalpium, Goniostoma
auriscalpium candida (f), Goniostoma auriscalpium expansa (f), Goniostoma * auriscata, Otopleura * aurisdianae, Euprotomus
* aurisfelis, Cassidula aurisflamma, Annulobalcis * aurisiacus, Conus * aurisjudae, Ellobium
auris-malchi, Helix * aurismidae, Ellobium aurisula, Polycera aurita, Depressiscala
aurita, Gymnodoris aurita, Gymnodoris * aurita, Pachymelania aurita, Turboella
aurita (f), Epitonium occidentalis aurita fusca (f), Pachymelania auritae, Hypermastus auritulus, Favorinus
* auritulus, Gemophos aurivillii aurivillii, Onoba aurivillii axicostata, Onoba aurora, Antarctoneptunea
* aurora, Aperiovula aurora, Calliostoma aurora, Cypraea * aurora, Euprotomus
aurora, Fulgurofusus aurora, Marginella aurora, Pectenodoris aurora, Prosipho
aurora, Splendrillia * aurora (f), Conus tinianus aurora (f), Oliva carneola * aurora aurora, Mitra
* aurora floridula, Mitra ausonia, Palazzia aussiorum, Trivia austini, Conus
austrafricana, Triviella * australasia, Pleuroploca * australasia australasia, Ranella australasia australasia benthicola (f), Ranella
australasia australasia vossi (f), Ranella * australasia bakeri (f), Pleuroploca australasia benthicola (f), Ranella australasia * australasia coronata (f), Pleuroploca
australasia eucla (f), Pleuroploca * australasia gemmifera, Ranella australasia vossi (f), Ranella australasia australasiae, Cymatium
australe, Buccinum * australe, Calliostoma australe, Dolium australe, Proxiuber
australe, Solarium australe, Solarium * australe, Vexillum australe (f), Cerithidea bicarinata
australense, Batillaria australiae, Onoba australiae (f), Amoria undulata australiana, Ellobium
australica, Monophorus * australiensis, Cribrarula cribraria australiensis, Eatoniella australiensis, Melanella
australiensis, Parvioris * australiensis, Peristernia * australiensis (f), Bufonaria rana australiensis (f), Chicoreus brunneus
australis, Aesopus australis, Alcyna * australis, Amalda australis, Amphibola
australis, Anatoma australis, Assiminea * australis, Austroliotia australis, Babelomurex
* australis, Batillaria australis, Cancellaria australis, Carinaria australis, Chevallieria
australis, Cirsonella australis, Colpospira australis, Conus australis, Conus
australis, Conus australis, Cypraea * australis, Diodora australis, Doxander vittatus
* australis, Duplicaria australis, Echinolittorina australis, Elysia * australis, Engina
australis, Epiforis * australis, Fusinus * australis, Haliotis * australis, Heleobia
* australis, Hipponix australis, Iravadia australis, Lamellaria australis, Lepsiella
australis, Lironoba australis, Margarites australis, Melibe * australis, Mesoginella
* australis, Microvoluta australis, Midorigai australis, Mitrella * australis, Monodonta
australis, Murex australis, Nassa australis, Nihonia * australis, Nodilittorina
australis, Odostomia * australis, Oliva * australis, Opalia australis, Ophicardelus
* australis, Phasianella australis, Powellisetia australis, Pyramidella australis, Ringicula
australis, Rostanga * australis, Siphonaria australis, Spongiobranchaea australis, Spurilla
australis, Stenothyra australis, Strombus australis, Sydaphera * australis, Tenagodus
* australis, Thiara * australis, Thorunna australis, Trivia australis, Trochus perspectivus
australis, Xenophora * australis, Zemira australis, Zemira * australis (f), Conus ammiralis summus
* australis (f), Guraleus mitralis australis (f), Nerita polita polita australis (f), Odostomia conoidea conoidea australis (f), Solarium hybridum
* australis australis, Conus australis australis, Gabbia * australis australis duplicatus (f), Conus * australis duplicatus (f), Conus australis
* australis gabryae, Conus australis kurzi (f), Oliva * australis pallescens (f), Oliva australis suspecta, Gabbia
australis vicarius (f), Conus ammiralis * austramosus, Chicoreus austraoceanensis, Babylonia austrina, Banzarecolpus
* austrina, Mitrella austrinus, Acteon austrocaledonicum, Epitonium austropacifica, Miralda
austrotrochoides, Echinolittorina * austroviola, Conus autumnalis, Cypraea autumnalis, Mitra
avachensis, Margarites avalitensis, Cypraea avalites, Avalitiscala * avalonensis, Boreotrophon
* avara, Anachis avaroides, Anachis * avellana, Amphibola avellana, Clithon
* avellana, Cronia avellana, Niveria * avellana, Oliva * avellana (f), Persicula persicula
avellana calosoma (f), Oliva avellanoides, Trivellona avellanula, Niveria * avena, Volvarina
avena avena, Neosimnia * avena beyerleana (f), Volvarina avena ruthturnerae, Neosimnia * avena varia (f), Volvarina
* avenacea, Cronia * avenacea, Mitra avenacea, Prunum avenacea bella (f), Prunum
avenella, Volvarina averina, Pseudoraphitoma averni, Glossodoris averni, Turboella
avicennia, Zafra avira, Inodrillia avunculus, Teinostoma awajiense, Vexillum inerme
awajiensis, Terebra awapa, Doto * awatii, Bursa awatii irregularis (f), Bursa
awatii minima (f), Bursa * awatii regularis (f), Bursa axeliana, Rissoina * axelolssoni, Calliostoma
* axelrodi, Conus axiaerata, Asteracmea axiaerata, Mitrella axialis, Aclophora
axialis, Pseudoliotia * axicornis, Chicoreus * axicornis kawamurai (f), Chicoreus axicostata, Mitromorpha
axicostata, Onoba aurivillii axicostulata, Cerithiella axicula, Pseudoraphitoma axiotimus, Tornus
axiplicata, Naskia axirugosus, Terefundus axis, Daphnella axiscalpta, Mitromorpha
ayakii, Volvatella ayresi, Polinices * azami, Muricopsis azelotes, Narrimania
azemula, Oliva azemula (f), Oliva miniacea tremulina azineae, Dendrodoris azona, Marginella
azona, Persicula * azona (f), Conus thalassiarchus * azona (f), Oliva reticulata azonata (f), Fusus pulchellus
azonicus, Inopinodon azonus, Megalomphalus azora, Euplica azorensis, Mitromorpha
azorensis, Obtusella griegi azorensis (f), Turbonilla obliquata azorica, Brocchinia azorica, Hypselodoris picta
azorica, Moniziella moniziana azorica, Putilla azorica, Tricolia pullus azoricus, Fusus
azoricus, Spirotropis azpilicuetai, Mitrella azteca, Miralda azumai, Cancellaria
* azumai, Fusiaphera * azumai, Primovula * azumai (f), Perisserosa guttata guttata * azurea (f), Erronea errones coxi
azuropunctata, Oxynoe * azygosorius, Fusinus