Lophogastrida and Mysida (Crustacea) of the “ DIVA- 1 ” deep-sea expedition to the Angola Basin (SE-Atlantic) Author Wittmann, Karl J. text European Journal of Taxonomy 2020 2020-04-16 628 1 43 journal article 10.5852/ejt.2020.628 86b76f24-0a25-4767-9088-7399181809dd 3756146 DFA628B3-900F-493E-98E4-C9B28CC7CDFD Subfamily Petalophthalminae Czerniavsky, 1882 Petalophthalmidae Czerniavsky, 1882: 56 (in key). Petalophthalmidae – Tattersall & Tattersall 1951: 113 ( partim ). — O.S. Tattersall 1955: 58 ( partim ). — Murano 1971: 46 . — Lagardère 1983 : 814 . — Tchindonova 1993 : 152 ( partim ). — Nouvel et al. 1999 : 78 ( partim ). — Meland & Willassen 2007 : 1096 ( partim ). — Fukuoka 2009 : 409 . — Price & Heard 2009 : 939. — Ortiz et al. 2012 : 985 . — Petryashov 2014 : 185 ( partim ). — San Vicente et al . 2014 : 78 . — Sawamoto 2014 ( partim ). — Many additional references not listed. Petalophthalminae – Wittmann et al. 2014 : 331 . — Meland et al . 2015 : table 4. — San Vicente & Corbari 2015 : 243 . — San Vicente 2017 : 154 . — Mees & Meland 2019 (in database). Petalophthalmidae Holt & Tattersall, 1906: 21–22 (this invalid taxon erroneously described as a new one although already having been established by Czerniavsky ( 1882 ) , who used the same name based on the same implicitly defined type genus). Diagnosis (revised from Wittmann et al . 2014 ) Petalophthalmidae with large antennula showing distinct sexual dimorphism; eyes normal or modified, in any case not miniaturized, visual elements present or absent; mandibular palp long, powerful, and prehensile; thoracopods 1–2 without exopod, thoracopods 3–8 with well-developed exopod; powerful subchelae are formed by opposition of dactylus with large claw to the propodus in thoracic endopod 1, and to the carpopropodus in endopod 2; merus of endopod 1 with large endite; ischium of endopod 2 with again larger, subquadrangular endite; endopod 5 with more than three segments; endopods 3–4 and 6–8 normal or reduced to different degrees; well-developed oostegites on thoracopods 2–8; female pleopods uniramous or biramous, male pleopods biramous; exopod of uropods with subterminal suture. Type genus Petalophthalmus Willemoës-Suhm, 1874 . Genera included Petalophthalmus Willemoës-Suhm, 1874 [4 species] Ipirophthalmus gen. nov. [4 species] Pseudopetalophthalmus Bravo & Murano, 1997 [2 species] Parapetalophthalmus Murano & Bravo, 1998 [1 species] Distribution The pooled taxa of Petalophthalminae show a panoceanic distribution between 56 ° N and 46° S , total depth range 0–5500 m , mainly 100– 500 m .