Callianopsis de Saint Laurent, 1973

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

Callianopsis de Saint Laurent, 1973

Callianopsis de Saint Laurent, 1973: 515 .— Schweitzer Hopkins and Feldmann, 1997: 237–238.— Sakai, 2005b: 226.— Sakai, 2011: 478–479.— Dworschak and Poore, 2018: 67 .

Pleurocalliax Sakai, 2011: 480–481 (type species, Callianassa caecigena Alcock and Anderson, 1894 , by original designation and monotypy).

Neocallianopsis Sakai, 2011: 482 (type species, Callianopsis anovalis Lin, Komai and Chan, 2007 , by original designation and monotypy).

Phaetoncalliax Sakai, Türkay, Beuck and Freiwald, 2015: 124– 128 (type species, Phaetoncalliax mauritana Sakai, Türkay, Beuck and Freiwald, 2015 , by original designation and monotypy).

Type species. Callianassa goniophthalma Rathbun, 1902 , by original designation and monotypy.

Diagnosis. Rostrum acute, produced, with dorsal carina leading to gastric region; carapace with median carina strong on rostrum, weaker more posteriorly; cardiac sulci absent. Pleomere 6 with lateral projections. Maxilliped 3 exopod absent. Male major cheliped merus with straight or weakly convex blade on lower margin bearing a short proximal curved spine and 1 or more distal spines.

Remarks. Callianopsis is recognised by the combination of a dorsally carinate rostrum and lateral projections on pleomere 6.

Callianopsis was placed in its own subfamily of the Ctenochelidae by Manning and Felder (1991). The subfamily was included as a member of Gourretiidae by Sakai (2005b) and at family rank by Sakai (2011). Sakai (2005b: 227) treated Dawsonius , a gourretiid genus, as a junior synonym of Callianopsis but in a note added in proof to the same paper (p. 245) recognised it as a separate genus. Dworschak and Poore (2018) synonymised Neocallianopsis Sakai, 2011 , Pleurocalliax Sakai, 2011 , and Phaetoncalliax Sakai, Türkay, Beuck and Freiwald, 2015 , with Callianopsis . All had been inadequately diagnosed or based on errors.