Thaumodon, Lowry & Stoddart, 1995

Lowry, J. K. & Stoddart, H. E., 1995, New lysianassoid genera and species from south-eastern Australia (Crustacea: Amphipoda), Records of the Australian Museum 47 (1), pp. 7-25 : 8

Thaumodon n.gen.

Diagnosis. Antenna 1: female without callynophore, male with weak I-field callynophore. Antenna 2: peduncular articles 4 and 5 not enlarged in male, flagellum not elongate in male. Mandible: incisors symmetrical, extremely enlarged, both with slightly convex margins; lacinia mobilis absent; accessory setal row present; molar a reduced setose flap; mandibular palp attached extremely proximally. Maxilla 1: outer plate narrow, with 11 setal-teeth, ST1 to ST7 large, strongly curved, without cusps, ST7 displaced onto inner row; STA to STD compressed, large, strongly curved, without cusps, STB compressed between STA and STC; palp with serrate apical margin. Maxilliped: inner plate with 3 greatly elongate apical setae. Gnathopod 1: simple; dactylus short, rasp-like with a medial row of large teeth and several medial rows of smaller teeth. Peraeopods 3 and 4 in male, merus and carpus with plumose setae along posterior margin. Uropod 3: peduncle short with strongly developed lateral flange; male peduncle and rami with plumose setae. Telson slightly longer than broad, moderately cleft (50%).