Author: Hansen, H.J. a.o.
Title: On two orders of Arachnida. Opiliones, especially the suborder Cyphophthalmi and Ricinulei, namely the family Cryptostemmadoidae.
Description: Cambridge, 1904. 182 pp. 9 lithogr. plts. Cloth, little worn.

Keywords: Entomology Spiders Entomologie Spinnen