Glypturus Stimpson, 1866

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 : 110

Glypturus Stimpson, 1866

Glypturus Stimpson, 1866: 46 .— Manning, 1987: 390.— Manning and Felder, 1991: 778.— Sakai, 1999a: 72.— Sakai, 2005b: 130–132.— Sakai, 2011: 429–430 (partim).— Hyžný and Müller, 2012: 969–971.— Hyžný et al., 2013: 133.— Klompmaker et al., 2015: 11.— Komai et al., 2015: 53–54 (complete synonymy).

Callianassa (Glypturus) .— Borradaile, 1903: 548.

Type species. Glypturus acanthochirus Stimpson, 1866: 46 , by original designation.

Diagnosis. Anterior branchiostegal lobe sclerotised, well produced anteriorly beyond junction with oblique branchiostegal ridge with which it articulates by means of a virtual condyle. Rostrum spine-like, with midventral ridge; anterolateral spines prominent. Pleomere 1 tergite fused, divided into 2 sections by transverse groove or shoulder. Antennal scaphocerite small, discoid. Maxilliped 3 ischium and merus narrow, more than twice as long as wide at their articulation; crista dentata of few separate spines proximally and toothed ridge distally overlapping proximal margin of merus; propodus about as wide as long, free distal margin transverse or nearly so. Major cheliped merus with row of sharp oblique spines, usually 2 proximally and 1 or more along length of lower margin; with 3 spines on upper inner margin of merus and propodus, and 4–6 on lower margin of carpus. Minor cheliped half or more as wide as major, carpus as long as or shorter than palm, fingers as long as or longer than palm. Pereopod 3 propodus subpentagonal, with strong broadly rounded proximal lobe on lower margin, lower margin straight-concave. Pereopod 4 subchelate. Male pleopod 1 consisting of 2 articles, article 2 ovoid, with shallow apical notch between rounded subdistal lobe and curved acute apex. Male pleopod 2 appendix interna free, articulating, distal on mesial endopod margin. Pleopods 3–5 appendices internae longer than wide, clearly emerging from margin of endopod. Uropodal endopod with convex anterior margin, acute-rounded apex, straight-slightly curved posterior margin, longer than wide. Telson strongly diverging to beyond midpoint and semicircular distally, posterior margin broadly semicircular.

Remarks. Glypturus is best recognised by the prominent anterolateral spines and the presence of marginal teeth on the chelipeds ( Komai et al., 2015). Komai et al. (2015) clarified the confusion around Glypturus introduced by Sakai’s (2011) revision.