Template:Hansen & Sørensen, 1904
- Hansen, H.J. & Sørensen W.E. 1904. On two orders of Arachnida Opiliones, especially the suborder Cyphophthalmi, and Ricinulei, namely the family Cryptostemmatoidae. Cambridge Univ. Press, Cambridge. 1–174, pls I-VII. BHL DOI: 10.5962/bhl.title.13898
