PALM, H.W. & WALTER, T. (1999)
Nybelinia southwelli sp. nov. (Cestoda, Trypanorhyncha) with the re-description of N. perideraeus (Shipley & Hornell, 1906) and synonymy of N. herdmani (Shipley & Hornell, 1906) with Kotorella pronosoma (Stossich, 1901). Bulletin of The Natural History Museum, Zoology Series, 65: 123–131