Worsham, McLean ; Gibson, Randy ; Huffman, David G Worsham, M. L., Gibson, R., Huffman, D. G. (2016) The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas. ZooKeys, 618, pp. 1–14..
,
2020
Worsham, McLean ; Julius, Eric P ; Nice, Chris C.. Worsham, M. L. D., Julius, E. P., Nice, C. C., Diaz, P. H., & Huffman, D. G. (2017). Geographic isolation facilitates the evolution of reproductive isolation and morphological divergence. Ecology and Evolution, 7(23), pp. 10278–10288..
,
2019