Protiaropsis pedunculata

Zhenzu Xu, Jiaqi Huang, Mao Lin, Donghui Guo & Chunguang Wang, 2016, Taxonomic notes on Hydroidomedusae (Cnidaria) from South China Sea II: Family Bythotiaridae (Anthomedusae), Zoological Systematics 41 (2), pp. 149-157 : 153

Key to the known species of genus Protiaropsis in China.

1 Manubrium with gastric peduncle, short and wide; 4 large mass-like gonads in interradial of manubrium; exumbrella with scattered cnidocysts........................................................................................................................ P. pedunculata Xu, Huang & Guo , sp. nov. Manubrium without gastric peduncle...................................................................................................................................................2 2 With 4 marginal tentacles, no base swelling, with terminal knob of cnidocysts; with 4 perradial marginal bulbs, with a short endodermal process extending upwards from the basal bulbs reaching 1/4 of exumbrella height; 4 pads shaped gonads in interradial position on manubrium ..................................................................................................... P. tetranema Xu, Huang & Wang , sp. nov. With 8 or more tentacles ......................................................................................................................................................................3 3 With 8–12 tentacles, each terminating more elongate, slight swelling......................................................... P. anonyma ( Maas, 1905) With 16–24 tentacles, each terminating in a large cnidocyst cluster ......................................................... P. minor ( Vanhöffen, 1911)