Dodatak:Popis vrsta rakova, X
Xa uredi
Xaiva MacLeay, 1838 uredi
- Xaiva biguttata (Risso, 1816)
- Xaiva mcleayi (Barnard, 1947)
- Xaiva pulchella MacLeay, 1838
Crustacea → Malacostraca → Decapoda → Portunoidea → Portunidae → Carcininae
- Xanthasia
- Xanthias
- Xanthidae
- Xanthilaophonte
- Xanthion
Xantho Leach, 1814 uredi
- Xantho edwardsii (Heller) [1]
- Xantho granulicarpus Forest in Drach & Forest, 1953 [1]
- Xantho hydrophilus (Herbst, 1790) [1]
- Xantho pilipes A. Milne-Edwards, 1867 [1]
- Xantho poressa (Olivi, 1792) [1]
- Xantho sexdentatus (Miers, 1881) [1]
Crustacea → Malacostraca → Decapoda → Xanthoidea → Xanthidae → Xanthinae
- Xanthocalanus
- Xanthodius
- Xanthoidea
Xe uredi
- Xeinostoma
- Xenacanthomysis
- Xenalytus
- Xenanthura
- Xenarcturidae
- Xenarcturus
- Xenobalanus
- Xenocarcinus
- Xenocheira
- Xenocoelomatidae
- Xenocoelomatidae
- Xenocrate
- Xenodice
- Xenograpsidae
- Xenograpsus
- Xenoleberis
- Xenophthalmidae
- Xenophthalmodes
- Xenophthalmus
- Xenosella
- Xenosellidae
- Xenuraega
- Xeplenois
- Xeroniscus
- Xeroporcellio
- Xestoleberididae
- Xestoleberididae
- Xestoleberis
- Xestopilumnus
Xi uredi
- Xibalbanus
Xigonus Just & Wilson, 2006 uredi
- Xigonus patagoniensis (Winkler, 1994)
Crustacea → Malacostraca → Isopoda → Asellota → Janiroidea → Paramunnidae
- Xiphichilus
- Xiphocaris
- Xiphonectes
- Xiphoniscus
- Xiphopenaeus
Xl uredi
- Xlumnus
Xo uredi
- Xostylus
Xy uredi
- Xylocythere
- Xylolana
- Xylora
- Xynomaia
Xynosphaera Bruce, 1994 uredi
- Xynosphaera colemani Bruce, 1994
Crustacea → Malacostraca → Isopoda → Sphaeromatoidea → Sphaeromatidae