Geddesia, Harris, 2014

Harris, Vernon A., 2014, Porcellidiidae of Australia (Harpacticoida, Copepoda). III. Synopsis of Genera and Species, Records of the Australian Museum 66 (2), pp. 167-196 : 177

publication ID

https://doi.org/ 10.3853/j.2201-4349.66.2014.1596

DOI

https://doi.org/10.5281/zenodo.4684241

persistent identifier

https://treatment.plazi.org/id/3E5087BB-FFFB-372C-FC43-FDF9FC38E093

treatment provided by

Carolina

scientific name

Geddesia
status

gen. nov.

Genus Geddesia gen. nov.

Porcellidium .— Geddes, 1968: 11.

Type species. Geddesia quadrata sp. nov.

Diagnosis. Male antennule unique, no denticle or comb on segment 3, two serrate denticles and two spherical structures on segment 4; female cephalosome truncated anteriorly, male deeply concave anteriorly; hyaline border to lateral edge; no dorsal organ with cuticular honeycomb; no ridge plates or setules on labrum; female caudal ramus pentagonal, medial corner 90°, posterior border between T2 and T4 straight, T3 absent; maxillule endopod with six setae; coxae of maxillipeds touch in mid-line; female P5 exopod without ventral expansion, not truncated posteriorly, dorsal and apical setae not pinnate.

Species composition. Geddesia trisetosa ( Geddes, 1968) comb. nov.; Geddesia quadrata sp. nov.

Etymology. The genus is named after Dr D. C. Geddes.

Remarks. The genus is defined on the unique structure of the male antennule, number of setae on maxillule endopod and absence of T3 seta on caudal ramus (compare with Mucrorostrum , Clunia and Brevifrons ).

Geddes’ Porcellidium trisetosum is included here on the assumption that its maxillule exopod has six setae (Geddes states that “…mouthparts like those of P. viride (Philippi) as described by Sars (1911)”, this implies six setae on the maxillule, Geddes (1968: 11).

The genus is known from Bahamas and Great Barrier Reef, Australia.

Kingdom

Animalia

Phylum

Arthropoda

Class

Hexanauplia

Order

Harpacticoida

Family

Porcellidiidae

Loc

Geddesia

Harris, Vernon A. 2014
2014
Loc

Porcellidium

Geddes, D 1968: 11
1968
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