Achelidelphys Lafargue & Laubier, 1977

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 : 655

Genus Achelidelphys Lafargue & Laubier, 1977

Diagnosis. Body unsegmented, stellate, withsmall abdominallobeposteriorly.Frontalmarginof cephalosome merging into tapering, laterally-directed antennulary lobes and produced into tapering conical rostrum. Body surface often wrinkled, ornamented with fine spinules. Abdomen present as small lobe at posterior end of body; rear margin bilobed, representing incorporated caudal rami either side of anal slit: caudal setae lacking. Rostrum anteroventrallydirected, digitiform. Antennules as tapering lobes located laterally on frontal margin. Antenna absent. Labrum globular, ventrally-directed lobe. Mouthparts absent. Legs 1–3 biramous, transformed, originating laterally and occupying entire margin of somite: both rami digitiform, exopods larger than endopods. Leg 4 biramous and similar to legs 1–3, or uniramous, comprising exopodal lobe only. Unpaired digitiform metasomal processes present on mid-ventral surface between legs in some species. Leg 5 absent.

Type species. Achelidelphys steinitzi Lafargue & Laubier, 1977 , by original designation.