Taxa included

Girard, C. (1854). Arachnidians. In: Marcy, G.B., McClellan, G.B., and United States War Department (eds.) Exploration of the Red River of Louisiana, in the year 1852. A.O.P. Nicholson: pp. 233–242, pl. 16–17. doi: 10.5962/bhl.title.43982