The postembryonic development of a species of the cyclopoid copepod genus Corycaeus from Saanich Inlet, British Columbia, is described and illustrated. Specimens were obtained from a large (40 000/m3) population of Corycaeus which developed in the control

Taxonomic and ecological studies of a large number of specimens can lead to the finding of morphological anomalies. Thus, based on 800 specimens of Corycaeus speciosus in different developmental stages (juvenile and adult copepodites) this study was carried

In 1929 and 1911, the female specimen of Corycaeus crassiusculus (Dana, 1848) and Onychocorycaeus catus (Dahl 1894) was first recorded in the Indian ocean by Farran and in the Arabian sea by Sewell in 1947. The two species are redescribed by a combination