Bathycalliax Sakai and Türkay, 1999

Poore, Gary C. B., Dworschak, Peter C., Robles, Rafael, Mantelatto, Fernando L. & Felder, Darryl L., 2019, A new classification of Callianassidae and related families (Crustacea: Decapoda: Axiidea) derived from a molecular phylogeny with morphological support, Memoirs of Museum Victoria (Mem. Mus. Vic.) 78, pp. 73-146 : 102

Bathycalliax Sakai and Türkay, 1999

Bathycalliax Sakai and Türkay, 1999: 204 .— Sakai, 2005b: 214.—

Sakai, 2011: 349.

Type species. Bathycalliax geomar Sakai and Türkay, 1999 , by original designation and monotypy.

Diagnosis. Rostrum obsolete or obtusely triangular, flat, not reaching cornea; carapace without median carina; cardiac sulci present. Pleomere 6 without lateral projections. Maxilliped 3 exopod present. Male major cheliped merus lower margin straight, with proximal row of denticles.

Remarks. Bathycalliax geomar is the sole species, placed by its authors in its own callianassid subfamily, Bathycalliacinae . Dworschak and Cunha (2007) confirmed that the holotype male pleopod 1 has a unique flagellate article 2 but that the smaller male paratype lacks pleopod 1. Sakai (2011) contradicted his earlier observations, saying that the male pleopod 1 is absent.