Concilicoxa, Kim & Lee, 2020

Kim, Jong Guk & Lee, Jimin, 2020, A new genus and species of Nannopodidae (Crustacea, Copepoda, Harpacticoida) from the Yellow Sea of South Korea, ZooKeys 984, pp. 23-47 : 23

Genus Concilicoxa gen. nov.

Diagnosis.

Nannopodidae . Body subcylindrical, slightly depressed dorsoventrally, without distinct constriction between prosome and urosome; hyaline frills of somites weak, ornamented with long setules. Rostrum well-developed, triangular, with 1 pair of sensilla. Genital slit ♀ reverse U-shaped, covered by 1 pair of large opercula. Caudal rami elongate, oval in ♀, rectangular in ♂, with 7 setae; principal seta V as long as caudal rami in ♀, slightly shorter than urosome in ♂. Antennule 4-segmented, with elongate first segment in ♀; chirocerate and 6-segmented in ♂. Antennary allobasis without abexopodal seta; exopod represented by single seta. Mandibular palp uniramous, with 1 seta on basis; exopod absent and endopod 2-segmented. Maxillular praecoxal arthrite with 1 surface seta; exopod 1-segmented and endopod absorbed into basis. Maxillary syncoxa with 2 endites; endopod absorbed into basis. Maxilliped with elongate basis; endopod drawn out into long geniculate claw. P1 coxa with 1 coarsely serrate outer projection; inner element on basis displaced onto anterior surface; exopod 2-segmented, with 4 setae on exp-2; endopod arising from well-developed inner pedestal of basis, prehensile, 2-segmented; enp-1 elongate, unarmed; enp-2 with 1 stout claw and 1 long seta. P2-P4 with 1 coarsely serrate outer projection on coxa; intercoxal sclerite hugely broad, separated in P2 and laterally fused to coxae in P3 and P4; outer setophore on basis articulated in P3 and P4; exopod 1-segmented; proximal outer spine on exopod with serrate outer margin, with inner and outer longitudinal rows of setules; endopod absent in P2, represented by 1 small distinct protuberance in P3, 1-segmented in P4; male P3 endopod 1-segmented and armed with 1 stout spine. Setal armature formulae of P1-P4 as follows:

P5 baseoendopod broad; endopodal lobe weakly developed, with 1 seta; exopod 1-segmented, with 4 setae.

P6 represented by 2 setae in ♀; slightly asymmetrical and represented by 3 setae in ♂.

Type species.

Concilicoxa hispida gen. et sp. nov., by monotypy.

Etymology.

The generic epithet is a combination of the Latin verb concílĭo meaning 'unite separate parts into a whole’ and the Latin noun coxa, meaning ‘hip’ and alludes to the fusion of the coxae and the intercoxal sclerite in P3 and P4. It is a noun in the feminine singular.