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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Pancrustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Peracarida
Ordo: Mysida

Familia: Petalophthalmidae
Genera: Bacescomysis – Cerotomysis – Hansenomysis – Parapetalophthalmus – Petalophthalmus – Pseudopetalophthalmus
Name

Petalophthalmidae Czerniavsky, 1882
References

San Vicente, C. & Corbari, L. 2015: A new bathyal mysid of the family Petalophthalmidae (Crustacea: Mysida) from the Bismarck Sea (Western Tropical Pacific Ocean). Zootaxa 3925(2): 241–256. DOI: 10.11646/zootaxa.3925.2.6. Reference page.
Petalophthalmidae – Taxon details on Integrated Taxonomic Information System (ITIS).

Vernacular names
中文: 瓣眼糠虾科

Petalophthalmidae is a family of marine crustaceans in the order Mysida, the opossum shrimps.
Characteristics

Petalophthalmidans are distinguished from other mysids by the fact that the first pereopod (walking leg) does not have an exopod (outer branch), the carpopropodus of the endopod (inner branch) of the 3rd to 8th pereopods are not fused and there is no statocyst on the endopod of the uropods (posterior appendage). Female petalophthalmidans have seven oostegites (flexible bristly flaps) forming the base of the marsupium or brood pouch under the thorax. Most species in this genus are bathypelagic and live on or near the seabed in the deep ocean.[2]
Genera

The following genera are recognised in the World Register of Marine Species:[1]

Genus Bacescomysis Murano & Krygier, 1985
Genus Ceratomysis Faxon, 1893
Genus Hansenomysis Stebbing, 1893
Genus Parapetalophthalmus Murano & Bravo, 1998
Genus Petalophthalmus Willemoes-Suhm, 1875
Genus Pseudopetalophthalmus Bravo & Murano, 1997

References

Mees, J (2013). "Petalophthalmidae Czerniavsky, 1882". WoRMS. World Register of Marine Species. Retrieved 2014-01-30.
"Family Petalophthalmidae". Zooplankton of the South Atlantic Ocean. Marine Species Identification Portal. Retrieved 2014-01-30.

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Biology Encyclopedia

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