Hasegawa & Uchida 2006. Redescription of two nematode species parasitic in the Japanese clawed salamander, Onychodactylus japonicus (Amphibia: Caudata: Hynobiidae), with proposal of a new genus Shunyanema (Nematoda: Oxyuroidea: Pharyngodonidae). Species Diversity, 11(3), August 2006: 245-255