| Termen/ Term | Nr. apariții/ No. occurrences |
| CTENOFOR | 3 |
| CU PAGURUL DARDANUS | 1 |
| CUART | 29 |
| CUBITUS | 1 |
| CUC | 21 |
| CUC AFRICAN | 1 |
| CUC AMERICAN | 2 |
| CUC CEYLONEZ | 1 |
| CUC DE INDIA(ASIATIC) | 1 |
| CUC DIN KALIMANTAN | 1 |
| CUC MALAYEZ | 1 |
| CUC PISTRUIAT | 1 |
| CUC SUD-AMERICAN | 1 |
| CUCURUZ | 4 |
| CUCUTA | 2 |
| CUCUVEA | 18 |
| CUCUVEA AFRICANA | 1 |
| CUCUVEA DE VIZUINA | 1 |
| CUFUNDAR GUSA ROSIE | 1 |
| CUFUNDAR MARE | 1 |
| CUFUNDAR POLAR | 9 |
| CUISOARA | 3 |
| CUJDA | 5 |
| CULBECEASA | 2 |
| CULCUSUL VACII | 11 |
| CULIC MARE | 9 |
| CULIC MIC | 1 |
| CUMACEA | 3 |
| CUMACEU | 100 |
| CUNUNITA | 1 |
| CUPA VACII | 1 |
| CURPEN | 6 |
| CURPEN DE MUNTE | 4 |
| CURPEN DE PADURE | 1 |
| CUSCRISOR | 6 |
| CUSCUS | 2 |
| CUTIT-DE-MARE | 6 |
| DALAC | 5 |
| DAMANUL DE STINCA | 4 |
| DE CASCADE | 1 |
| DE STUFARIS | 1 |
| DECABRAHIAT | 1 |
| DECAPOD | 30 |
| DEDITEI | 2 |
| DEDITEL | 1 |
| DEFENSA | 1 |
| DEGETAR | 1 |
| DEGETAR GALBEN | 1 |
| DELFINUL MIC | 2 |
| DENDROCOLAPTID CENTRAMERICAN | 1 |