A related tale type is type AaTh 428, "The Wolf", considered by scholars as a fragmentary version of the tale of Cupid and Psyche, lacking the initial part about the animal husband and corresponding to the part of the witch's tasks.Anderson, Walter. "IV. Besprechungen". In: Fabula 1, no. 2 (1958): 284. https://doi.org/10.1515/fabl.1958.1.2.283Swahn, Jan Öjvind. The Tale of Cupid and Psyche. Lund, C.W.K. Gleerup. 1955. p. 379.Tangherlini, Timothy A. "Prinz als Wolf (AaTh 428) [Son of the Witch (ATU 425 B)]". In: Online: Band 10: Nibelungenlied – Prozeßmotive. Edited by Rolf Wilhelm Brednich, Heidrun Alzheimer, Hermann Bausinger, Wolfgang Brückner, Daniel Drascek, Helge Gerndt, Ines Köhler-Zülch, Klaus Roth and Hans-Jörg Uther. Berlin, Boston: De Gruyter, 2016 [2002]. pp. 1325-1327. https://www.degruyter.com/database/EMO/entry/emo.10.245/html Accordingly, Uther revised the international classification system and subsumed previous type AaTh 428, "The Wolf" under the new type ATU 425B, "Son of the Witch".Uther, Hans-Jörg. The types of International Folktales. A Classification and Bibliography, based on the System of Antti Aarne and Stith Thompson. Volume 1: Animal tales, tales of magic, religious tales, and realistic tales, with an introduction. Helsinki: Suomalainen Tiedeakatemia-Academia Scientiarum Fennica, 2004. p. 250. .
