Acritozosime, Kim & Lee, 2021

Kim, Jong Guk & Lee, Jimin, 2021, Proposal of two new genera of the family Zosimeidae Seifried (Copepoda: Harpacticoida): Heterozosime gen. nov. and Acritozosime gen. nov., European Journal of Taxonomy 760, pp. 32-60 : 48

Genus Acritozosime gen. nov.

urn:lsid:zoobank.org:act:E2108940-B5E2-47CC-8199-17CB29513F41

Type species

Acritozosime spinesco gen. et sp. nov., by monotypy.

Diagnosis

Body subcylindrical, with distinct constriction between prosome and urosome. Penultimate somite with weak pseudoperculum. Rostrum undefined at base, with 1 pair of long sensilla distally. Caudal rami short, slightly longer than wide; principal seta V very long, about 4/5 of body length. Antennule robust, 7-segmented, with ae on second and distal segment, respectively. Antennary exopod 3-segmented; setal armature, from proximal: 2.0.4; distal endopodal segment with lateral armature comprising 3 stout elements and distal armature composed of 7 elements. Mandibular palp well-developed, with 2 setae on basis; exopod 1-segmented, with 4 setae; endopod 1-segmented, with 4 distal setae and 1 lateral seta. Maxillular coxa without epipodite; exopod 1-segmented, with 2 setae; endopod 1-segmented, with 5 setae. Maxillary syncoxa with 3 endites; endopod 2-segmented. Maxilliped stenopodial, forming right angle between syncoxa and basis; syncoxa with 2 setae; basis gradually extended toward distal end, with 1 seta; endopod small, 1-segmented, with 4 setae. P1 with 2-segmented exopod and endopod; enp-1 without inner seta. P2–P4 with 3-segmented exopod and 2-segmented endopod; exp-3 with 2 outer spines; P2–P3 enp-1 without inner seta. Female P5 exopod and baseoendopod separate; exopod with 3 marginal setae. P6 represented by 1 long and 2 small setae. Male unknown.

Etymology

The generic name is a combination of the Greek ‘ akritos ’ meaning ‘confused’ or ‘mixed’ and the name of the type genus Zosime . It refers to several morphological features intermediate between the families Idyanthidae and Zosimeidae .