A Phylogeny and Classification of the Senticaudata subord. nov. (Crustacea: Amphipoda) Author Myers, A text Zootaxa 2013 3610 1 1 80 journal article 10.11646/zootaxa.3610.1.1 126b5f67-71bb-46e4-874c-7f8864ea8cd1 1175-5326 283309 AA71AC2D-C7BF-43AE-9E25-29A5EC843B89 Hyalidae Bulycheva, 1957 Type genus. Hyale Rathke, 1837 . Diagnostic description. Body laterally compressed. Eyes well developed or poorly developed, round, ovoid, reniform, ventrally tapered or subrectangular. Antennae 1–2 calceoli absent. Antenna 1 shorter than antenna 2 ; peduncular article 1 subequal to, or longer than article 2; article 2 shorter than, subequal to, or longer than article 3; article 3 shorter than article 1; peduncular articles 1–2 not geniculate; accessory flagellum absent. Antenna 2 peduncular article 1 not enlarged. Mandible molar triturative; palp absent . Maxilla 1 basal endite apically setose; palp present or absent, symmetrical. Maxilla 2 basal endite without oblique setal row. Labium inner lobes vestigial or absent. Coxal gills on pereopods 2–6, not stalked; sternal gills absent; sternal blisters absent; oostegites fringing setae simple or fringing curl-tipped. Gnathopod 1 subchelate or parachelate; similar in males and females (not sexually dimorphic); smaller (or weaker) than gnathopod 2; propodus palm without robust setae along palmar margin. Gnathopod 2 subchelate; dissimilar in males and females (sexually dimorphic); carpus slightly produced along posterior margin of propodus or not produced along posterior margin of propodus, projecting between merus and propodus or not produced along posterior margin of propodus, not projecting between merus and propodus. Pereopods 3–4 not sexually dimorphic. Pereopod 4 with well developed posteroventral lobe. Pereopod 5 shorter than pereopod 6; coxa equilobate or with large anteroventral lobe. Pereopod 7 longer than pereopod 5. Pleonites 1–3 each with dorsal carina or carinae. Urosomites 1–3 free; without slender or robust dorsal setae. Urosomite 1 without large distoventral robust seta. Urosomite 2 without dorsal setae. Uropod 1 without basofacial robust setae. Uropod 3 not sexually dimorphic; biramous or uniramous , without plumose setae; endopod minute. Telson deeply or moderately cleft ; dorsal or lateral robust setae absent; apical robust setae present or absent. Habitat. Marine, epigean. Included subfamilies. Hyacheliinae Bousfield & Hendrycks, 2002; Hyalinae Bulycheva, 1957 . Included genera. Apohyale Bousfield & Hendrycks, 2002 ; Hyachelia J.L. Barnard, 1967 ; Hyale Rathke, 1837 ; Insula Kunkel, 1910 ; Lelehua J.L. Barnard, 1970 ; Neobule Haswell, 1879 a; Parallorchestes Shoemaker, 1941 ; Parhyale Stebbing, 1897 ; Protohyale ( Boreohyale ) Bousfield & Hendrycks, 2002 ; Protohyale ( Diplohyale ) Bousfield & Hendrycks, 2002 ; Protohyale ( Leptohyale ) Bousfield & Hendrycks, 2002 ; Protohyale ( Protohyale ) Bousfield & Hendrycks, 2002 ; Ptilohyale Bousfield & Hendrycks, 2002 ; Ruffohyale Bousfield & Hendrycks, 2002 ; Serejohyale Bousfield & Hendrycks, 2002 . Distribution. Cosmopolitan.