Pugnatrypaea Poore, Dworschak, Robles, Mantelatto and Felder, 2019

Poore, Gary C. B., 2023, New records, one new genus and 21 new species of Callianassidae (Crustacea, Axiidea) from the Indo-West Pacific, Memoirs of Museum Victoria 82, pp. 167-255 : 220-222

Pugnatrypaea Poore, Dworschak, Robles, Mantelatto and Felder, 2019

Pugnatrypaea Poore et al., 2019: 97–98 .— Robles et al., 2020: figs

1, 3, 6.— Poore and Ahyong, 2023: 213.

Diagnosis. Rostrum acute, anteriorly directed, almost as long as eyestalks. Pleomere 1 tergite fused, divided into 2 sections by transverse step. Pleomere 6 flared posteriorly. Cornea with scattered reduced pigmentation. Antennular peduncle exceeded by all of antennal peduncular article 5 or not exceeding article 5; articles 2 and 3 with single lateral row of well-spaced long setae along lower margin. Antennal scaphocerite simple, longer than wide, acute. Maxilliped 3 merus distally almost transverse with obtuse angle between distal and mesial margins, as long as or longer than wide at ischium-merus suture, without distal spine on distal free margin. Male major cheliped merus with simple proximal hook on lower margin. Pereopod 3 propodus oval, lower margin convex, leading to narrow sharply rounded proximal lobe. Male pleopod 2 present or absent. Uropodal endopod ovoid, longer than wide, anterior margin straight, posterodistal margin evenly convex, with long facial spiniform setae on rib. Uropodal exopod about 1.8 times as long as wide, distal margin clearly differentiated from anterior margin, anterodistal corner right-angled, posterodistal margin with row of 6–8 long blade-like setae proximal to long setae on distal margin. Telson anterolateral lobe obsolete, undefined; telson tapering over distal third to pair of lobes separated by deep notch, with medial spine.

Remarks. Poore et al. (2019) listed six species of Pugnatrypaea of which four have been transferred to Praedatrypaea above. Pugnatrypaea pugnatrix (De Man, 1905) was one of two species in Robles et al.’s (2020) phylogram, the other from the Gulf of Mexico has since been described as P. emanata Felder and Robles, 2020 . The telson of both species has a deep notch with a median spine on the posterior margin and two pairs of spiniform setae near the posterolateral curvature, long facial spiniform setae on the uropodal endopod, and a single proximal tooth on the lower margin of the merus of the major cheliped.

These features are shared with P. iranica ( Sepahvand, Momtazi and Tudge, 2015) from the Persian Gulf, bringing the number of species to three. The spines on the eyestalks of P. iranica bear an uncanny resemblance to those of Aqaballianassa thorsoni ( Sakai, 2005) , also from the Persian Gulf.

In the light of this rearrangement, the diagnosis of the genus has been updated above. Liu’s (2022) key to species is superseded.