Ceuthonectes is a genus of copepods in the family Canthocamptidae. It includes the Slovenian endemic species C. rouchi, which is listed as a vulnerable species on the IUCN Red List. Ceuthonectes contains the following species:
- Ceuthonectes boui <small>Apostolov, 2002</small>
- Ceuthonectes bulbiseta <small>Apostolov, 2002</small>
- Ceuthonectes chappuisi <small>Rouch, 1980</small>
- Ceuthonectes colchidanus <small>(Borutsky, 1930)</small>
- Ceuthonectes gallicus <small>Chappuis, 1928</small>
- Ceuthonectes haemusi <small>Apostolov, 2000</small>
- Ceuthonectes hungaricus <small>Pónyi, 1958</small>
- Ceuthonectes latifurcatus <small>(Borutsky, 1931)</small>
- Ceuthonectes mirabilis <small>Miura, 1964</small>
- Ceuthonectes pescei <small>Cottarelli & Saporito, 1985</small>
- Ceuthonectes petkovskii <small>Karanovic, 1999</small>
- Ceuthonectes rouchi <small>Petkovski, 1984</small>
- Ceuthonectes serbicus <small>Chappuis, 1924</small>
- Ceuthonectes vievilleae <small>Rouch, 1980</small>
References