Doroixys ooishiae, Kim & Boxshall, 2020

Kim, Il-Hoi & Boxshall, Geoff A., 2020, Untold diversity: the astonishing species richness of the Notodelphyidae (Copepoda: Cyclopoida), a family of symbiotic copepods associated with ascidians (Tunicata), Megataxa 4 (1), pp. 1-6 : 463

Doroixys ooishiae sp. nov.

Syn. Doroixys uncinata: Ooishi, 1972, p. 305 , text-figs. 1-3; pl. xiv, fig. 2.

Etymology. The name of the new species honours its discoverer, Shigeko Ooishi.

Description: see Ooishi (1972).

Remarks. The specimens described by Ooishi (1972) under the name D. uncinata Kerschner exhibit significant differences from the original description and from our observations of typical D. uncinata . These differences are: (1) the caudal ramus is shorter, 2.3 times longer than wide compared to 3.2 times in D. uncinata ; (2) the first exopodal segment of leg 2 bears an inner seta (cf. seta absent); (3) the distal segment of the endopod of leg 4 is armed with 3 setae (cf. no setae); and (4) the protopodal process (“outer lobe” according to Ooishi) of leg 5 is produced and tapering. The material examined by Ooishi (1972) is not conspecific with D. uncinata and we here recognize it as a new species, Doroixys ooishiae sp. nov. Ooishi (1972) described the third endopodal segment of leg 1 as bearing 7 setae (formula 1, 2, 4), such an armature formula is extremely unusual for the family Notodelphyidae . This armature condition is considered an abnormality and requires confirmation.