Poore, G. C. B. “Rediagnosis of Callianideidae and Its Genera (Crustacea: Decapoda: Axiidea), and Description of a New Species of Heardaxius Sakai, 2011”. Zootaxa, vol. 3995, no. 1, Aug. 2015, pp. 229–240, doi:10.11646/zootaxa.3995.1.19.