Pha
- Phaenna
- Phaennidae
- Phaennidae
- Phaibulamon
- Phalaba
- Phalangipus
- Phallangothelphusa
- Phallocryptus
- Phalloleucon
- Phalloniscus
- Pharodes
- Pharodidae
- Pharodidae
Phe
- Pherma
Phi
- Philarius
- Philichthyidae
- Philichthyidae
- Philichthys
- Philippicarcinus
- Philippidorippe
- Philocheras
- Philomedes
- Philomedidae
- Philomedidae
- Philoneptunus
- Philorthragoriscus
- Philoscia
- Philosciidae
- Philoscina
- Philostomella
- Philyra
- Phimochirus
- Phippsia
- Phippsiella
Phl
- Phliantidae
Pho
- Pholadicola
- Pholenota
- Pholeterides
- Pholetiscus
- Phoratopodidae
- Phoratopus
- Photis
- Phoxocephalidae
- Phoxocephalus
- Phoxokalliapseudes
Phr
- Phreatalona
- Phreatoasellus
- Phreatogammaridae
- Phreatogammarus
- Phreatoicidae
- Phreatoicoides
- Phreatoicopsidae
- Phreatoicopsis
- Phreatoicus
- Phreatomerus
- Phreatosasellus
- Phricotelphusa
- Phrixocephalus
- Phronima
- Phronimella
- Phronimidae
- Phronimoidea
- Phronimopsis
- Phrosina
- Phrosinidae
- Phrygiopilus
Pht
- Phtisica
- Phtisicidae
- Phtisicoidea
Phy
- Phycolaophonte
- Phylctenophora
- Phylladiorhynchus
- Phyllodicolidae
- Phyllodicolidae
- Phyllodorippe
- Phyllodurus
- Phyllognathopodidae
- Phyllognathopodidae
- Phyllognathopus
- Phyllolithodes
- Phylloniscus
Podrazred Phyllopoda Preuss, 1951
- Cryptocaris Barrande, 1872 †
- Diplostraca Gerstaecker, 1866
- Dithyrocaris †
- Notostraca Sars, 1867
- Phyllopodopsyllus
- Phyllothalestris
- Phyllothyreus
- Phyllotymolinidae
- Phyllotymolinum
- Phymatoniscus
- Phymocythere
- Physachaeus
- Physocypria