Vogel, G., Amarasinghe, A. A. T., & Ineich, I. (2016).

Resurrection of Pseudorabdion torquatum (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854), a former synonym of P. longiceps (Cantor, 1847)
(Colubridae: Calamariinae) from Sulawesi, Indonesia

. Zootaxa, 4121(3), 337–345. https://doi.org/10.11646/zootaxa.4121.3.8