FIGURE 1. Antenna 2.18.1 in A phylogeny and classification of the Talitroidea (Amphipoda, Senticaudata) based on interpretation of morphological synapomorphies and homoplasies

FIGURE 1. Antenna 2.18.1 slender (after Bousfield 1991); 18.2 incrassate (after Bousfield 1982). Maxilliped. 20.1 palp article 2 without distomedial lobe (after Hurley 1957); 20.2 palp article 2 with distomedial lobe (after Iaciofano & Lo Brutto 2016); 21.1 palp article 4 large well defined (after Krapp-Schickel 1993); 21.2 palp article 4 small, well defined (after Duncan 1994); 21.3a palp article 4 fused to article 3 (after Bellan-Santini, 1993); 21.3b palp article 4 reduced button shaped (after Hurley 1957). Gnathopod 1. 22.1 subchelate (after White, Lowry & Morino 2013); 22.2 parachelate (after Lindeman 1990); 22.3 simple (after Lowry & Myers 2019a); 22.4 chelate (after Serejo 2004).