Aqaballianassa brevirostris ( Sakai, 2002 )

Dworschak, Peter C. & Anker, Arthur, 2022, Axiidea (Crustacea: Callianassidae, Callichiridae and Ctenochelidae) and Gebiidea (Upogebiidae) collected during the Comprehensive Marine Biodiversity Survey of Singapore, Raffles Bulletin of Zoology 70, pp. 108-133 : 114

Aqaballianassa brevirostris ( Sakai, 2002)

( Fig. 1c )

Callianassa brevirostris Sakai, 2002: 514 , figs. 30A–E, 31A–I.

Trypaea brevirostris . — Sakai, 2011a: 394.

Aquaballianassa brevirostris . — Poore et al., 2019: table 1; — Robles et al., 2020: suppl. tables 1, 2.

CMBS material. 1 ov. female (28/5.6) ( ZRC 2017.0948 ) [DNA voucher GenBank MN 237904 , MN 237706 , MN 238111 ], sta. SW117, St John’s Island , DRTech, north lagoon, 1°13.116′N 103°51.079′E, silt/sand, in burrows, yabby pump, 0–0.5 m, coll. PKL Ng, JC Mendoza , R Tan, 31 May 2013 (SS-3267) .

Description. See Sakai (2002).

Distribution. Andaman Sea ( Sakai, 2002), Singapore (this study).

Habitat. Sand or mud with shell fragments at depths of 17 to 73 m ( Sakai, 2002); sand/silt in the intertidal or very shallow water, 0–0.5 m (this study).

Remarks. The present ovigerous female from St John’s Island represents a new record of Aqaballianassa brevirostris for Singapore.

Figures

Fig. 1. Specimens, habitus (dorsal and/or ventral views), showing colouration in life: a, Gourretia sinica Liu & Liu, 2010, female (23/5.3) (ZRC 2017.0947); b, Karumballichirus karumba (Poore & Griffin, 1979), female (32/7.6) (ZRC 2018.0526); c, Aqaballianassa brevirostris Sakai, 2002, ovigerous female (28/5.6) (ZRC 2017.0948); d, Upogebia singaporensis, new species, female holotype (16/5.4) (ZRC 2017.0951); e, f, Neogebicula johorensis, new species, male holotype (18/5.6) (ZRC 2017.0956); g, h, same, ovigerous female paratype (21/6.3) (ZRC 2017.0955); i, j, Wolffogebia phuketensis Sakai, 1982, male (37/10.3) (NHMW 26036). Not to scale. [Photographs by AA].