The family Aristiidae (Crustacea: Amphipoda: Lysianassoidea) in Australian waters Author Stoddart, H. E. helen.stoddart@austmus.gov.au Author Lowry, J. K. text Zootaxa 2010 2010-07-26 2549 1 31 53 https://biotaxa.org/Zootaxa/article/view/zootaxa.2634.1.5 journal article 10.11646/zootaxa.2634.1.5 1175-5326 Aristiidae Lowry & Stoddart, 1997 Diagnosis. Head deeper than long. Epistome and upper lip fused, usually with a central notch. Mandible incisors usually asymmetrical, left straight, minutely serrate, right straight or slightly convex, smooth; molar if present a smooth, weakly setose flap. Maxilla 1 inner plate with more than 2 pappose setae; outer plate setal-teeth in a modified 7/4 arrangement. Gnathopod 1 simple, subchelate or parachelate. Coxa 1 vestigial; coxa 2 small or large; coxa 3 large. Pereopods 3–7 simple; propodus with distal spur (rarely absent).