J. A.  Ryder, ?The structure, affinities and species of Scolopendrella?, Proceedings of the Academy of Natural Sciences of Philadelphia, vol. 33, no. 3, pp. 79-86, 1881.

J. A.  Ryder, ?Scolopendrella as the type of a new order of Articulates (Symphyla)?, The American Naturalist, an illustrated magazine of Natural History, vol. 14, no. 5, pp. 375-376, 1880.