Public domain: Species accounts (259 / 1904)

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Species Synonym
Calanopia elliptica  
Calanus euxinus  
Calappa pelii  
Caligus pageti  
Calliblepharis rammediorum  
Callinectes danae  
Callinectes sapidus Callinectes sapidus acutidens (Rathbun, 1896)
Portunus diacantha (Latreille, 1825)
Callionymus filamentosus Callionymus filentosus Valenciennes, 1837
Callionymus stigmapteron Smith, 1963
Calliurichthys filamentosus (Valenciennes, 1837)
Calliostoma zizyphinum  
Callyspongia pergamentacea  
Callyspongia siphonella  
Calocalanus plumulosus Calanus plumulosus (Claus, 1863)
Ischnocalanus plumulosus (Claus, 1863)
Leptocalanus plumulosus (Claus, 1863)
Mecynocera plumulosa (Claus, 1863)
Caloria indica  
Calyptospadix cerulea  
Calyptraea chinensis  
Campanularia morgansi  
Canarium mutabile  
Cancer irroratus Cancer Sayi Gould, 1841
Platycarcinus irroratus (Say, 1817)
Caprella equilibra  
Caprella mutica Japanese Skeleton Shrimp
Caprella penantis  
Caprella scaura Caprella cornuta Dana, 1853
Caprella cornuta f. obtusirostris Dana, 1853
Caprella nodosa Templeton, 1836
Caprella scaura f. cornuta
Caprella scaura f. diceros Mayer, 1890
Caprella scaura f. hamata Utinomi, 1947
Caprella scaura f. typica Mayer, 1890
Carassius auratus  
Carassius gibelio Carassius auratus gibelio (Bloch, 1782)
Carassius bucephalus (Heckel, 1837)
Carassius ellipticus (Heckel, 1848)
Carbosphaerella leptosphaerioides  
Carcinus maenas European Green crab
Carpobrotus acinaciformis  
Carupa tenuipes  
Cassiopea andromeda Cassiopea medusa
Cassiopea mertensii
Cassiopea xamachana
Catostomus catostomus  
Caulacanthus okamurae  
Caulacanthus ustulatus  
Caulerpa cylindracea Ahnfeldtia cylindracea (Sonder) Trevisan 1849
Caulerpa cylindracea var. macra Harvey 1858
Caulerpa racemosa var. [laetevirens] f. cylindracea (Sonder)
Caulerpa racemosa var. cylindracea (Sonder) Verlaque, Huisma
Chauvinia cylindracea (Sonder) Kützing 1849
Caulerpa denticulata  
Caulerpa mexicana  
Caulerpa racemosa var. lamourouxii f. requienii  
Caulerpa taxifolia Fucus taxifolius (Vahl, 1802)
Caulerpa taxifolia var. distichophylla  
Caulerpa webbiana Chauvinia webbiana (Montagne) (Kützing, 1849)
Caulibugula arcasounensis  
Caulibugula zanzibarensis  
Cellana rota  
Celleporaria albirostris  
Celleporaria aperta  
Celleporaria brunnea  
Celleporaria inaudita  
Celleporaria vermiformis  
Celleporella carolinensis  
Celleporella hyalina  
Celtodoryx ciocalyptoides Celtodoryx girardae
Centroceras clavulatum Callithamnion ramellosum
Ceramium clavulatum
Centropages furcatus  
Cephalothrix simula  
Ceramium botryocarpum  
Ceramium cimbricum  
Ceramium cingulatum  
Ceramium circinatum  
Ceramium graecum  
Ceramium strobiliforme  
Ceramium sungminbooi  
Ceramium tenuicorne  
Ceramium virgatum Ceramium rubrum
Cerastoderma edule Cardium belgicum (De Malzine, 1867)
Cardium crenulatum (Lamarck, 1819)
Cardium edule (Linnaeus, 1758)
Cardium edule burchanae (Girscher, 1938)
Ceratonereis mirabilis  
Cercopagis (Cercopagis) pengoi  
Cereus pedunculatus  
Cerithidium diplax  
Cerithidium perparvulum  
Cerithiopsis pulvis  
Cerithiopsis tenthrenois  
Cerithium columna  
Cerithium egenum  
Cerithium nesioticum  
Cerithium scabridum  
Chaetoceros aequatorialis  
Chaetoceros circinalis  
Chaetoceros concavicornis  
Chaetoceros diversus var. papilionis  
Chaetoceros lorenzianus  
Chaetoceros peruvianus  
Chaetoceros rostratus  
Chaetoceros throndsenii Miraltia throndsenii Marino, Montresor & Zingone, 1987
Chaetoceros tortissimus  
Chaetodipterus faber  
Chaetodon auriga  
Chaetodon austriacus Chaetodon klunzingeri (Kossman & Räuber, 1876) Chaetodon tri
Chaetodon larvatus Chaetodon karraf (Cuvier, 1831)
Gonochaetodon larvatus (Cuvier & Valenciennes, 1831)
Chaetogammarus ischnus  
Chaetogammarus warpachowskyi  
Chaetomorpha aerea  
Chaetomorpha capillaris  
Chaetomorpha linum  
Chaetopleura angulata  
Chaetozone corona  
Chalinula loosanoffi  
Chama asperella Chama aspersa Reeve, 1846
Chama gryphoides  
Chama pacifica  
Chama sp.  
Champsodon nudivittis Centropercis nudivittis Ogilby, 1895
Champsodon arafurensis Regan, 1908
Champsodon curticeps Fowler, 1943
Champsodon curtipes Fowler, 1943
Chara connivens Chara globularis f. connivens (Salzmann ex A.Braun) R.D.Wood
Charybdis (Charybdis) feriata  
Charybdis (Charybdis) hellerii  
Charybdis (Charybdis) japonica Charybdis peitchihiliensis (Shen, 1932)
Charybdis sowerbyi (Rathbun, 1931)
Goniosoma japonica (Milne-Edwards A, 1861)
Charybdis (Charybdis) lucifera  
Charybdis (Goniohellenus) longicollis  
Chattonella marina  
Chattonella marina var. antiqua  
Cheilodipterus novemstriatus Apogon novemstriatus (Rüppell, 1838)
Cheilodipterus bipunctatus (Lachner, 1951)
Paramia bipunctata (Lachner, 1951)
Cheilopogon cyanopterus  
Chelicorophium curvispinum Corophium curvispinum (Sars, 1895) (basionym)
Chelicorophium robustum  
Chelon haematocheilus  
Chelon labrosus  
Cherax destructor  
Chionoecetes opilio  
Chiton cumingsii  
Chlorurus rhakoura  
Chondracanthus sp.  
Chondria arcuata  
Chondria coerulescens  
Chondria collinsiana  
Chondria curvilineata  
Chondria polyrhiza  
Chondria pygmaea  
Chondrus giganteus  
Chondrus giganteus f. flabellatus  
Chorda filum  
Chorizopora brongniartii  
Chromodoris quadricolor  
Chrysaora hysoscella  
Chrysaora pseudoocellata  
Chrysonephos lewisii  
Chrysymenia ventricosa Halymenia ventricosa (J.V.Lamouroux) C.Agardh, 1822
Chrysymenia wrightii  
Cinachyrella alloclada  
Cingulina isseli  
Ciona intestinalis Vase tunicate
Ciona robusta  
Circenita callipyga  
Circulus octoliratus  
Cirolana harfordi  
Cirrenalia basiminuta  
Cirrholovenia tetranema  
Cladophora flexuosa Cladophora gracilis (Griffiths) Kützing, 1845
Conferva gracilis A.W.Griffiths ex Harvey, 1834
Cladophora hutchinsiae Chloronitum hutchinsiae (Dillwyn) Gaillon, 1928
Cladophora alysoidea Meneghini, 1844
Cladophora brachyclona var. laxa Schifffer, 1938
Cladophora diffusa Harvey
Cladophora hormocladia Kützing, 1849
Cladophora hutchinsiae f. hormocladia (Kützing) Hamel, 1924
Cladophora hutchinsiae f. pectinata Hamel, 1924
Cladophora hutchinsiae var. distans (C.Agardh) Kützing, 1849
Cladophora kuetzingii Ardissone, 1886
Cladophora rectangularis (A.W.Griffiths) Harvey, 1846
Cladophora rectangularis var. distans
Cladophora rectangularis var. hispida Kützing, 1849
Cladophora rectangularis var. horrida Kützing, 1849
Cladophora rectangularis var. subnuda Kützing, 1849
Cladophora rissoana Montagne ex Kützing, 1849
Cladophora utriculosa var. virgata Kützing, 1849
Cladophora vesiculosa Kützing, 1843
Cladophora virgata (Kützing) Kützing, 1853
Conferva diffusa C.Agardh, 1824
Conferva distans C.Agardh, 1824
Conferva hutchinsiae Dillwyn, 1809
Conferva rectangularis A.W.Griffiths, 1833
Cladophora patentiramea  
Cladophora prolifera  
Cladophoropsis membranacea  
Cladosiphon zosterae  
Cladostephus spongiosus  
Clausocalanus arcuicornis  
Clavelina dellavallei  
Clavelina lepadiformis  
Clavelina oblonga  
Claviceps purpurea  
Clementia papyracea  
Clorida albolitura  
Clymenella torquata  
Clypeomorus bifasciatus  
Clytia hemisphaerica  
Clytia hummelincki  
Clytia linearis Campanularia gravieri Billard, 1904
Campanularia obliqua Clarke, 1907
Clytia acutidenta Fraser, 1938
Clytia alternata Hargitt, 1924
Clytia carinadentata Fraser, 1938
Clytia foxi Billard, 1926
Clytia fragilis Congdon, 1907
Clytia fragilis Congdon, 1907
Clytia gravieri (Billard, 1904)
Clytia obliqua (Clarke, 1907)
Clytia serrata Miljard, 1958
Gonothyraea serialis Fraser, 1938
Clytia mccradyi  
Clytia paulensis  
Cocconeis britannica  
Cochlodinium polykrikoides  
Codium adhaerens  
Codium arabicum Codium adhaerens var. arabicum (Kützing) P.L.Crouan & H.M.Cr
Codium coronatum var. aggregatum (Børgesen, 1940)
Codium coronatum var. insculptum (Setchell, 1926)
Codium fragile Oyster Thief
Codium fragile atlanticum  
Codium fragile scandinavicum  
Codium fragile subsp. fragile Codium fragile capense (Silva PC, 1959)
Codium fragile tomentosoides (van Goor) (Silva PC, 1955)
Codium parvulum  
Codium pulvinatum  
Codium taylorii  
Codium vermilara  
Colaconema codicola Acrochaetium codicola (Børgesen, 1927)
Audouinella codicola (Børgesen) (Garbary, 1979)
Rhodochorton codicola (Børgesen) (Nakamura, 1944)
Rhodothamniella codicola (Børgesen) (Bidoux & Magne F, 1989)
Colaconema dasyae  
Colaconema garbaryi Audouinella simplex
Coleusia signata  
Colpomenia peregrina Colpomenia sinuosa var. peregrina (Sauvageau, 1927)
Colpomenia sinuosa  
Conchoderma auritum  
Congeria leucophaeta leucophaeta Mytilopsis leucophaeta
Conomurex persicus  
Conopeum reticulum  
Conopeum seurati  
Conradia eutornisca  
Conus arenatus arenatus  
Conus fumigatus  
Coolia monotis  
Corambe obscura  
Corbicula fluminalis  
Corbicula fluminea Asian clam
Cordylophora caspia Bimeria baltica (Stechow, 1927)
Cordylophora albicola (Kirchenpauer in Busk, 1861)
Cordylophora americana (Leidy, 1870)
Coregonus autumnalis Coregonus autumnalis autumnalis (Pallas, 1776)
Goregonus autumnalis (Pallas, 1776) (misspelling)
Salmo autumnalis (Pallas, 1776)
Coregonus muksun Salmo muksun (Pallas, 1814)
Coregonus nasus Coregonus kennicotti (Milner, 1883)
Coregonus nasus kennicotti (Milner, 1883)
Salmo nasus (Pallas, 1776)
Coregonus peled Coregonus rudolphianus (Valenciennes, 1848)
Coregonus syrok (Valenciennes, 1848)
Salmo cyprinoides (Pallas, 1814)
Corella eumyota  
Corethron pennatum  
Coriophora lessepsiana  
Cornigerius maeoticus  
Corollospora lacera Peritrichospora lacera (Linder, 1944)
Corophium volutator  
Corymbellus aureus  
Coryne eximia Sarsia eximia
Sarsia radiata
Corynomorpha prismatica  
Corynophlaea verruculiformis  
Coryphellina rubrolineata  
Coscinasterias tenuispina  
Coscinodiscus wailesii  
Cossura coasta  
Costellipitar chordatus  
Cotula coronopifolia  
Cotylorhiza erythraea  
Cradoscrupocellaria bertholletii Scrupocellaria bertholettii
Crambe crambe  
Crangon crangon  
Crangonyx pseudogracilis  
Craspedacusta sowerbii  
Crassicorophium bonellii  
Crassicorophium crassicorne  
Crassimarginatella papulifera  
Crassostrea rhizophorae  
Crassostrea rivularis  
Crassostrea sikamea  
Crassostrea virginica Dioeciostrea americana (Orton, 1928)
Ostrea borealis (Lamarck, 1819)
Ostrea canadensis (Lamarck, 1819)
Crenidens crenidens Crenidens crenidens indicus Day, 1873
Crenidens indicus Day, 1873
Sparus crenidens Forsskål, 1775
Crepidacantha poissonii  
Crepidula fornicata Crepidula riisei (Dunker, 1852)
Crepidula virginica (Conrad, 1871)
Crypta densata (Conrad, 1843)
Crepipatella dilatata  
Cristapseudes omercooperi  
Crisularia serrata Bugula germanae Calvet (1902)
Bugula mollis Harmer, 1926
Critomolgus actiniae  
Cryptocentrus caeruleopunctatus  
Cryptonemia hibernica  
Cryptonemia lomation  
Cryptorchestia cavimana  
Cryptosula pallasiana Cribrilina pallasiana Moll, 1803
Eschara pallasiana Moll, 1803
Lepralia pallasiana (Moll, 1803)
Ctenodrilus serratus  
Ctenopharyngodon idella  
Cucurbitula cymbium  
Cumulospora marina  
Cumulospora varia Moromyces varius
Cuthona perca  
Cutleria multifida  
Cyclichthys spilostylus Chilomycterus spilostylus Leis & Randall, 1982 synonym
Cyclichthys echinatus (non Linnaeus, 1758)
Cyclicthys spilostylos (Leis & Randall, 1982)
Cycloscala hyalina  
Cylichna villersii  
Cymbaloporetta plana  
Cymodoce fuscina  
Cymodocea nodosa Cymodocea aequorea K.D.Koenig, 1806
Zostera nodosa Ucria, 1793
Cynoglossus sinusarabici Dollfusichthys sinusarabici Chabanaud, 1931
Cynoscion nebulosus  
Cynoscion regalis  
Cyprinus carpio Cyprinus carpio var. gibbosus (Kessler, 1856)
Cystodytes dellechiajei