Law, Chris J., Kelly M. Dorgan, and Greg W. Rouse. 2013. “Validation of Three Sympatric Thoracophelia Species (Annelida: Opheliidae) from Dillon Beach, California Using Mitochondrial and Nuclear DNA Sequence Data”. Zootaxa 3608 (1). Auckland, New Zealand:67–74. https://doi.org/10.11646/zootaxa.3608.1.4.