Revision of Family Megacalanidae (Copepoda: Calanoida) Author Bradford-Grieve, Janet M. Author Blanco-Bercial, Leocadio Author Boxshall, Geoffrey A. text Zootaxa 2017 4229 1 1 183 journal article 37164 10.5281/zenodo.293480 07873971-1d73-4f3a-b361-179172ec47cf 1175-5326 293480 BCDF8F6F-B8B4-4A9D-A8B8-7EDCEF1100BE Key to Megacalanus , females and males 1 Head with crest in females and males.................................................. Megacalanus frosti n. sp. - Head without crest in females and males...................................................................2 2 Posterolateral lappets of Pd5 rounded in females and males.............................. Megacalanus ohmani n. sp. - Posterolateral lappets of Pd5 triangular in females and males................................................... 3 3 Female A1 ancestral segments XV and XVI posterior border smooth; male right A1 segment XIX with 1 distal fused gripping element........................................................................ Megacalanus ericae n. sp. - Female A1 ancestral segments XV and XVI with posterior border blunt teeth; male right A1 segment XIX without distal fused gripping element.................................................................... Megacalanus princeps