Lonchidiopsis Vanhöffen, 1917

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 : 447

Genus Lonchidiopsis Vanhöffen, 1917

Diagnosis. Body of female dorsoventrally depressed: consisting of cephalosome, short neck, large trunk and smallfree urosome.Trunk formingbrood pouchconsisting of fused third to fifth pedigerous somites. Urosome unsegmented but with traces of articulations. Caudal rami armed with 6 setae. Rostrum tipped with spinous process. Antennule 8-segmented. Female antenna 3-segmented, comprising coxa, allobasis and 1-segmented free endopod bearing terminal claw. Male antenna forming powerful chelate grasping organ. Mandible with coxal gnathobase forming broad cutting margin; basis fused with first endopodal segment, secondendopodal segment with 10 setae: exopod 1-segmented, fused to basis, armed with 5 setae. Maxillule armed with 9 setae on arthrite, 1 on endite, 2 on epipodite, 3 on basis, 4 on exopod, and 5 on endopod. Maxilla 3-segmented; basis with claw plus 2 setae; endopod small, unsegmented with 5 setae. Maxilliped unsegmented, armed with 5 setae medially and 3 setae distally. Legs 1–3 with 2-segmented rami; inner coxal seta present in leg 1, present or absent in legs 2–4; basiswith innerdistal spine. Leg 4 with 2-segmented rami, lacking inner setaon first exopodal segment; leg 4 vestigial in some species, or absent. Leg 5 comprising lateral papilla bearing protopodal seta and exopodal segment armed with 2 setae distally.

Type species. Lonchidiopsis hartmeyeri Vanĥffen, 1917 , by original designation.

Remarks. Unlike its two congeners L. tripes Stock, 1967 and L. setosus Jones & Montez Moreno, 1981 , the type species L. hartmeyeri possesses a well-developed leg 4 and has more armature elements on legs 1–3.