Dillon, R. T., Malabad, T. E., Orndorff, W. D. & Liu, H.-P. (2023). Three new
Fontigens (Caenogastropoda: Fontigentidae) from caves in the Appalachian Ridge and Valley Province, Virginia. Pp. 283-306
in Dillon, R.T., et al.
The freshwater gastropods of North America, Volume 5:
Ohio, Cumberland, and Tennessee River Systems. FWGNA Press, Charleston.