| Latin | English | Esperanto |
|---|---|---|
| Cacatua galerita | sulphur-crested cockatoo | sulfurtufa kakatuo |
| Cacatua leadbeateri | pink cockatoo | ruĝeta kakatuo |
| Cacatua roseicapilla | galah cockatoo | galaha kakatuo |
| Cacatua sanguinea | little corella | sanga kakatuo |
| Cacatua tenuirostris | long-bill corella | longbeka kakatuo |
| Calidris | sandpiper | kalidro |
| Calidris acuminata | sharptail sandpiper | pintvosta kalidro |
| Calidris ferruginea | curlew sandpiper | rusta kalidro |
| Calidris melanotos | pectoral sandpiper | nigrastria kalidro |
| Callicoma serratifolia | black wattle | segildenta kalikomo |
| Calliphora vicina | blowie | blua kaliforo |
| Calliphora vomitoria | blue bottle fly | pika kaliforo |
| Callistemon | bottlebrush | kalistemo |
| Callistemon salignus | willow bottlebrush | salika kalistemono |
| Callistemon viminalis | drooping bottlebrush | vimena kalistemono |
| Callocephalon fimbriatum | gang-gang cockatoo | gengenga kakatuo |
| Calotis hispidula | bindi-eye | kalotiso |
| Canis f. dingo | dingo | dingo |
| Carcharhinus | shark | ŝarko |
| Carcharhinus brachyurus | bronze whaler shark | kraba ŝarko |
| Carcharhinus leucas | white whaler shark | blanka ŝarko |
| Carcharhinus melanopterus | blacktip reef shark | nigravosta ŝarko |
| Carcharhinus obscurus | black whaler shark | malhela ŝarko |
| Carcharias taurus | grey nurse shark | taŭra ŝarko |
| Carduelis carduelis | goldfinch | kardelo |
| Carduelis chloris | greenfinch | verdfringo |
| Carica | papaya | kariko |
| Carica papaya | papaya | papajo |
| Carica pubescens | mountain papaya | monta kariko |
| Casuarina | she-oak | kazuareno |
| Casuarina cunninghamiana | river she-oak | rivera kazuareno |
| Casuarina glauca | swamp she-oak | marĉa kazuareno |
| Casuarius casuarius | cassowary | kazuaro |
| Centropus phasianinus | pheasant coucal | fazaneca kukolo |
| Ceratopetalum apetalum | coachwood | ceratopetalo |
| Ceratopetalum gummiferum | christmas bush | kristnaska ceratopetalo |
| Cereopsis novaehollandiae | Cape Barren goose | gruntansero |
| Charadrius | dotterel | karadrio |
| Charadrius bicinctus | banded dotterel | banderola karadrio |
| Charadrius melanops | blackfront dotterel | nigrafrunta karadrio |
| Charadrius ruficapillus | redcap dotterel | ruĝĉapa karadrio |
| Charadrius veredus | oriental dotterel | Azia karadrio |
| Chenopodium gaudichaudianum | goosefoot saltbush | kenopodio |
| Cherax albidus | freshwater crayfish; yabby | kankro |
| Chione stutchburyi | cockle | kiono |
| Chionochloa conspicua | brown tussock | fulva kionoklo |
| Chionochloa flavescens | snow tussock | verdflava kionoklo |
| Chionochloa flavicans | yellow tussock | kremflava kionoklo |
| Chionochloa rubra | red tussock | ruĝa kionoklo |
| Chironex fleckeri | sea wasp | venena meduzo |
| Chlamydosaurus kingii | frillneck lizard | franĝkola lacerto |
| Chrysococcyx basalis | horsfield bronze cuckoo | rufvosta kukolo |
| Chrysococcyx lucidus | shining cuckoo | brila kukolo |
| Chrysopogon | beard grass | krisopogono |
| Citrullus lanatus | water melon | citrolo |
| Clematis | clematis | klemato |
| Clematis glycinoides | clematis | Aŭstralia klemato |
| Clematis paniculata | clematis | Novzelanda klemato |
| Clianthus formosus | Sturt's desert pea | Aŭstralia klianto |
| Clianthus puniceus | kaka beak | Novzelanda klianto |
| Cocos nucifera | coconut palm | kokospalmo |
| Colocasia esculenta | taro | taro |
| Coracina novaehollandiae | black-face cuckooshrike | nigravizaĝa koraceno |
| Cordyline australis | cabbage tree | Novzelanda kordilino |
| Coriaria arborea | tutu | venena koriario |
| Cortaderia fulvida | kakaho | fulva kortaderio |
| Cortaderia selloana | pampas grass | pampa kortaderio |
| Cortaderia toetoe | toetoe | flava kortaderio |
| Corvus | crow | korvo |
| Corvus | raven | korniko |
| Corvus bennetti | little crow | malgranda korvo |
| Corvus coronoides | Australian raven | granda korniko |
| Corvus frugilegus | crow; rook | frugilega korvo |
| Corvus mellori | little raven | malgranda korniko |
| Corvus orru | Torresian crow | granda korvo |
| Corvus tasmanicus | forest raven | arbara korniko |
| Corynocarpus laevigatus | karaka | korinokarpo |
| Cotula coronopifolia | bachelor buttons; billy buttons | kotolo |
| Cracticus | butcherbird | kraktiko |
| Cracticus quoyi | black butcherbird | nigra kraktiko |
| Cracticus torquatus | grey butcherbird | griza kraktiko |
| Craspedia uniflora | bachelor buttons; billy buttons | kraspedio |
| Crux australis | Southern Cross | |
| Cryptocarya laevigata | grey sassafras | kriptokario |
| Cuculus pallidus | pallid cuckoo | pala kukolo |
| Cucumis melo | rock melon | kantalupo |
| Cucumis myriocarpus | paddy melon | dornoza kukumo |
| Cyanoramphus novaezelandiae | kakariki | Novzelanda papageto |
| Cyathea | punga | arbfiliko |
| Cyathea australis | rough treefern | rufa ciateo |
| Cyathea dealbata | silver fern; ponga | arĝenta ciateo ; arĝenta filiko |
| Cyathea medullaris | mamaku | nigra ciateo ; nigra filiko |
| Cygnus atratus | black swan | nigra cigno |
| Cynodon dactylon | doab | cinodonto |
| Cyperus papyrus | papyrus | papiruso |