Comstock, J. H. (1912). The spider book. A manual for the study of the spiders and their near relatives, the scorpions, pseudoscorpions, whipscorpions, harvestmen and other members of the class Arachnida, found in America north of Mexico, with analytical keys for their classification and popular accounts of their habits. Doubleday, Page & Company, Garden City/New York, 721 pp. doi:10.5962/bhl.title.3163 -- Show included taxa