Corycaeus clausi
Dahl F. (1894)
Download a fact sheet for Corycaeus clausi (PDF 464KB)
Taxonomy
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Maxillopoda |
| Subclass | Copepoda |
| Order | Cyclopoida |
| Family | Corycaeidae |
| Genus | Corycaeus |
| Species | clausi |
Size
- Female: 1.50 - 1.82 mm
- Male: 1.30 - 1.56 mm
Distinguishing characters
- Proportional length of urosome somites and caudal rami
- Female with short anal somite and caudal rami
- Male with mid length caudal rami compared to other male Corycaeus
Male
- Length ratio genital somite: anal somite: caudal rami 46:21:33
Female
- Cephalosome fused with 1st pedigerous somite
- Genital somite twice as long as anal somite
- Genital somite 1.5 times as long as caudal rami
- Genital somite oval, as wide as long
- Anal somite wider at proximal margin
- Caudal rami 3 times as long as wide
- Prosome points extends to ~ 2/3 of genital somite
Distribution
- Epipelagic ¨C mesopelagic
- Coastal and oceanic
- Tropical and subtropical in Atlantic, Indian and Pacific oceans
Ecology
- Epipelagic ¨C mesopelagic
- Coastal and oceanic
- Tropical and subtropical in Atlantic, Indian and Pacific oceans
References
- Bradford-Grieve, J. M., E. L. Markhaseva, et al. (1999). Copepoda. South Atlantic Zooplankton. D. Boltovskoy. Leiden, The Netherlands, Backhuys Publishers. 1: 869-1098.
- Dahl, M. (1912). Die Copepoden der Plankton-Expedition. I. Die Corycaeinen. Mit Berucksichtigung aller bekannten Arten bearb. (Ergebnisse der Plankton-Exp. Bd II. G. f. 1.).¡¡¡¡Pages: (iv + 136) ¡¡
- Tanaka, O. (1957[1959]). On copepoda of the family Corycaeidae in Japanese waters 1957. Contx Dep Fish Kyushu Univ 3