Redescription of Protoopalina pingi Nie, 1935 inhabiting the recta of Hylarana guentheri and Pelophylax nigromaculatus in ChinaWeidong Li, Chong Wang, Feng Huang, Ming Li, Frank Nilsen, Huiyu Liu and Jianlong XuParasite, 21 (2014) 46DOI: https://doi.org/10.1051/parasite/2014021