Geissler, P., Poyarkov, N. A. Jr., Grismer, L., Nguyen, T. Q., An, H. T., Neang, T., Kupfer, A., Ziegler, T., Böhme, W., Müller, H. (2014): New Ichthyophis species from Indochina (Gymnophiona, Ichthyophiidae): 1. The unstriped forms with descriptions of three new species and the redescriptions of I. acuminatus Taylor, 1960, I. youngorum Taylor, 1960 and I. laosensis Taylor, 1969. – Organisms, Diversity & Evolution 15: 143-174; doi:10.1007/s13127-014-0190-6