Oncaea clevei

Zooplankton

Früchtl (1923)

P2 bearing somite with dorso-posterior projection in lateral view
Very similar to O.paraclevei, can be distinguished by location of genital apertures & form of sclerotization

Prosome 2.5 times the length of urosome, excluding caudal rami, 2.2 times urosome length, including caudal rami
Caudal rami about 1.8 times longer than wide, shorter than female

Exoskeleton well chitinized
Prosome 2.4 times length of urosome excluding caudal rami, 2.1 times urosome length including caudal rami
P2 bearing somite with dorso-posterior projection in lateral view (variable in conspicuousness)
Integumental pores on prosome
Pleural areas of P4 bearing somite elongate and with rounded posterolateral corners
Genital double-somite rectangular in dorsal aspect, 1.4 times as long as maximum width & 1.6 times as long as postgenital somites combined, largest width measured near anterior margin,lateral margins of genital double-somite rounded at anterior quarter, posterior part tapering slightly
Paired genital apertures located very close to dorso lateral margin at about 2/5 the distance from anterior margin of genital double-somite, armature represented by 1 spine and 2 minute spinous processes
Sickle-shaped sclerotiziation between, but slightly posterior to genital apertures
Anal somite 1.4 times wider than long,slightly shorter than caudal rami
Caudal ramus about 2.3 times as long as wide

Heron, G. A. and J. M. Bradford-Grieve (1995). "The marine faunaof New Zealand: Pelagic Copepoda: Poecilostomatoida: Oncaeidae." New Zealand Oceanographic Institute Memoir 104.
Bottger-Schnack, R. (2001). "Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. II. Seven species of Oncaea s.str." Bulletin of Natural History Museum 67(1): 25-84.