Janstockia Boxshall & Marchenkov, 2005

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 : 614

Genus Janstockia Boxshall & Marchenkov, 2005

Diagnosis. Body vermiform, elongate, cylindrical, consisting of cephalosome, long metasome and small abdomen. Cephalosome defined from metasome; metasome forming brood pouch and incorporating fifth pedigerous somite. Genital openings located posteriorly on prosome. Abdomen unsegmented, small, incompletely articulated from prosome. Caudal rami fused to somite, or apparently absent resulting from complete incorporation into rear margin of anal somite. Rostrum tapering. Antennule indistinctly 2- or 3-segmented. Antenna 3- segmented; comprising coxa, basis and unsegmented endopod terminating in claw. Labrum small. Mandible and maxillule lobate, bearing setae. Maxilla absent. Maxilliped 2-segmented. Legs 1–4 broad, biramous, each with unsegmented or obscurely 2-segmented protopod: basis with outer seta in all legs; basis of leg 1 lacking innerdistal element. Exopods unsegmented, 2-segmented or indistinctly 3-segmented (leg 1 only); claw-like process present on exopods of legs 2–4. Endopods typically unsegmented, or indistinctly 3-segmented (leg 1 only). Leg 5 absent.

Type species. Janstockia phallusiella Boxshall & Marchenkov, 2005 , by original designation.

Remarks. This genus was defined by Boxshall & Marchenkov (2005) after detailedcomparison with related genera.