Phaennidae
Phaennidae is a family of planktonic copepods, found in pelagic or benthopelagic waters. It contains the following genera:Brachycalanus Farran, 1905Cephalophanes Sars, 1907Cornucalanus Wolfenden, 1905Kirnesius Markhaseva & Semenova, 2005Onchocalanus Sars, 1905Phaenna Claus, 1863Phaennocalanus Markhaseva, 2002Talacalanus Wolfenden, 1911Xanthocalanus Giesbrecht, 1892