Petalophthalminae Czerniavsky 1882
- Dataset
- Lophogastrida and Mysida (Crustacea) of the “ DIVA- 1 ” deep-sea expedition to the Angola Basin (SE-Atlantic)
- Rank
- SUBFAMILY
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Malacostraca
- order
- Mysida
- family
- Petalophthalmidae
diagnosis
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.
distribution
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.
type_taxon
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]