Megacalanidae

Bradford-Grieve, Janet M., Blanco-Bercial, Leocadio & Boxshall, Geoffrey A., 2017, Revision of Family Megacalanidae (Copepoda: Calanoida), Zootaxa 4229 (1), pp. 1-183 : 168

publication ID

https://doi.org/ 10.5281/zenodo.293480

publication LSID

lsid:zoobank.org:pub:BCDF8F6F-B8B4-4A9D-A8B8-7EDCEF1100BE

DOI

https://doi.org/10.5281/zenodo.6029208

persistent identifier

https://treatment.plazi.org/id/03FC3969-BBDD-FF1C-01BE-6384FA4F040E

treatment provided by

Plazi

scientific name

Megacalanidae
status

 

Key to Megacalanidae genera, females and males

1 Exopod of P 1 in both sexes with 1,1,2 outer marginal spines; Mx2 terminal setae gently curving, extending short of mouth. 2

- Exopod of P 1 in both sexes with different arrangement of outer marginal spines; Mx2 terminal setae, curled, extending to or beyond rostrum.......................................................................................3

2 P1 basis usually with inner anterodistal hook-like processes, Mx1 Ri2 with 4 setae, Mn gnathobase with ventral tooth set at right angles to main plane of gnathobase thus appearing narrow; male right A1 ancestral segments XXII–XXIII fused................................................................................................. Megacalanus

- P1 basis without inner anterodistal hook-like process, Mx1 Ri2 with at most 2 setae, Mn gnathobase with ventral tooth set obliqely to main plane of gnathobase thus appearing broad; male right A1 ancestral segments XXI–XXIII fused.................................................................................................... Bradycalanus

3 Re of P 1 in both sexes with 0,0,2 outer marginal spines; anterior margin of head of both sexes without pair of anteriorlydirected spine-like processes but female may be crested; Mx2 terminal setae curled distally into semicircle.... Elenacalanus

- Re of P 1 in both sexes with 0,0,1 outer marginal spines; anterior head of both sexes with pair of anteriorly-directed spine-like processes or single spine-like process; Mx2 terminal setae curled completetely on themselves distally........ Bathycalanus

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