1. Uroactinidae
  2. Uroballus
  3. Urobatis
  4. Urobatis jamaicensis
  5. Urobilin
  6. Urobilinogen
  7. Uroboros (album)
  8. Urobotrya
  9. Urobotrya congolana subsp. afzelii
  10. Urocaridella
  11. Urocerus
  12. Urochloa
  13. Urochloa panicoides
  14. Urochondra setulosa
  15. Urochordata (fylogenetisk klassifisering)
  16. Urocissa
  17. Urocitellus
  18. Urocitellus armatus
  19. Urocitellus columbianus
  20. Urocitellus elegans
  21. Urocitellus parryii
  22. Urocitellus townsendii
  23. Urocitellus undulatus
  24. Urocitellus washingtoni
  25. Urocolius
  26. Urocoras
  27. Urocoras nicomedis
  28. Urocordylus
  29. Urocotyledon
  30. Urocotyledon inexpectata
  31. Urocotyledon palmata
  32. Urocotyledon rasmusseni
  33. Urocotyledon weileri
  34. Urocotyledon wolterstorffi
  35. Uroctea
  36. Urocteana poecilis
  37. Uroctea compactilis
  38. Uroctea durandi
  39. Uroctea hashemitorum
  40. Uroctea manii
  41. Urctea matthaii
  42. Uroctea quinquenotata
  43. Uroctea schinzi
  44. Uroctea semilimbata
  45. Uroctea septemnotata
  46. Uroctea septempunctata
  47. Uroctea sudanensis
  48. Uroctea thaleri
  49. Uroctea yunlingensis
  50. Uroctonites
  51. Uroctonites giulianii
  52. Uroctonites huachuca
  53. Uroctonites monteeus
  54. Uroctonites sequoia
  55. Uroctonus
  56. Uroctonus franckei
  57. Urocyon
  58. Urocystidaceae
  59. Urocystidales
  60. Urocystis
  61. Uroczysko Leśne
  62. Uroczysko Leśne
  63. Urodacinae
  64. Urodacus
  65. Urodacus armatus
  66. Urodacus butleri
  67. Urodacus centralis
  68. Urodacus utmerker seg
  69. Urodacus giulianii
  70. Urodacus hartmeyeri
  71. Urodacus koolanensis
  72. Urodacus lowei
  73. Urodacus macrurus
  74. Urodacus manicatus
  75. Urodacus megamastigus
  76. Urodacus planimanus
  77. Urodacus similis
  78. Urodacus varians
  79. Uroderma
  80. Urodilatin
  81. Urodinychidae
  82. Urodon
  83. Urodontinae
  84. Urodontus
  85. Urodon (plante)
  86. Urodynamikk
  87. Uroecobius ecribellatus
  88. Urogale everetti
  89. Urogelides daviesae
  90. Urogonimus macrostomum
  91. Intravenøs urografi
  92. Urogymnus
  93. Urogymnus asperrimus
  94. Urohydrose
  95. Urojo
  96. Urokinase
  97. Urola
  98. Urolais
  99. Urola kosta
  100. Urolithine
  101. Urologi
  102. Urolophidae
  103. Urolophus
  104. Urolophus cruciatus
  105. Üröm
  106. Uromacer
  107. Uromacerina ricardinii
  108. Uromacer frenatus
  109. Uromastycinae
  110. Uromastyx
  111. Uromastyx acanthinura
  112. Uromastyx aegyptia
  113. Uromastyx alfredschmidti
  114. Uromastyx benti
  115. Uromastyx dispar
  116. Uromastyx geyri
  117. Uromastyx macfadyeni
  118. Uromastyx nigriventris
  119. Uromastyx occidentalis
  120. Uromastyx ocellata
  121. Uromastyx ornata
  122. Uromastyx princeps
  123. Uromastyx shobraki
  124. Uromastyx thomasi
  125. Uromastyx yemenensis
  126. Uromenus
  127. Uromenus rugosicollis
  128. Ürömhegy
  129. Ürömhegy
  130. Uromi
  131. Uromodulin
  132. Uromyces
  133. Uromyces erythronii
  134. Uromyces galegae
  135. Uromyces pisi-sativi
  136. Uromyces viciae-fabae
  137. Uromyias
  138. Uromys
  139. Urones of Castroponce
  140. Uroobovella pyriformis
  141. Uropeltidae
  142. Uropeltis
  143. Uropeltis beddomii
  144. Uropeltis broughami
  145. Uropeltis ceylanicus
  146. Uropeltis ellioti
  147. Uropeltis liura
  148. Uropeltis macrolepis
  149. Uropeltis macrorhyncha
  150. Uropeltis madurensis
  151. Uropeltis melanogaster
  152. Uropeltis nitida
  153. Uropeltis ocellata
  154. Uropeltis petersi
  155. Uropeltis phillipsi
  156. Uropeltis phipsonii
  157. Uropeltis rubrolineata
  158. Uropeltis rubromaculatus
  159. Uropeltis shorttii
  160. Uropeltis smithi
  161. Uropeltis woodmasoni
  162. Uropetala
  163. Urophonius
  164. Urophonius achalensis
  165. Urophonius araucano
  166. Urophonius brachycentrus
  167. Urophonius eugenicus
  168. Urophonius exochus
  169. Urophonius granulatus
  170. Urophonius iheringi
  171. Urophonius martinezi
  172. Urophonius mondacai
  173. Urophonius pehuenche
  174. Urophonius pizarroi
  175. Urophonius somuncura
  176. Urophonius transandinus
  177. Urophonius tregualemuensis
  178. Urophonius tumbensis
  179. Urophora
  180. Urophora affinis
  181. Urophora cardui
  182. Urophora jaceana
  183. Urophora quadrifasciata
  184. Urophora stylata
  185. Urophycis
  186. Urophycis chuss
  187. Urophycis tenuis
  188. Uropi
  189. Uroplatus
  190. Uroplatus alluaudi
  191. Uroplatus ebenaui
  192. Uroplatus fiera
  193. Uroplatus fimbriatus
  194. Uroplatus Finiavana
  195. Uroplatus giganteus
  196. Uroplatus guentheri
  197. Uroplatus henkeli
  198. Uroplatus lineatus
  199. Uroplatus malahelo
  200. Uroplatus malama
  201. Uroplatus phantasticus
  202. Uroplatus pietschmanni
  203. Uroplatus sameiti
  204. Uroplatus sikorae
  205. Uroplects
  206. Uroplectes ansiedippenaarae
  207. Uroplectes carinatus
  208. Uroplectes emiliae
  209. Uroplectes fischeri
  210. Uroplectes flavoviridis
  211. Uroplectes formosus
  212. Uroplectes gracilior
  213. Uroplectes insignis
  214. Uroplectes katangensis
  215. Uroplectes lineatus
  216. Uroplectes malawicus
  217. Uroplectes marlothi
  218. Uroplects ngangelarum
  219. Uroplectes occidentalis
  220. Uroplectes pardalis
  221. Uroplectes pardii
  222. Uroplectes pictus
  223. Uroplectes pilosus
  224. Uroplectes planimanus
  225. Uroplectes schlechteri
  226. Uroplectes schubotzi
  227. Uroplectes silvestrii
  228. Uroplectes triangulifer
  229. Uroplectes tumidimanus
  230. Uroplectes variegatus
  231. Uroplectes vittatus
  232. Uroplectes xanthogrammus
  233. Uropodiae
  234. Uropodidae
  235. Uropodina
  236. Uropodoidea
  237. Uroporfyrinogen III
  238. Uroproctus assamensis
  239. Uropsalis
  240. Uropsila
  241. Uropsilus
  242. Uropsilus andersoni
  243. Uropsilus gracilis
  244. Uropsilus etterforsker
  245. Uropsilus soricipes
  246. Uropterygiinae
  247. Uropygi
  248. Urorhipis
  249. Uros
  250. Urosaurus
  251. Urosaurus auriculatus
  252. Urosaurus bicarinatus
  253. Urosaurus gadovi
  254. Urosaurus nigricaudus
  255. Urosaurus ornatus
  256. Uroskopi
  257. Urosepsis
  258. Uroševac
  259. Uroševac
  260. Uroševina
  261. Uroševina
  262. Urospermum
  263. Urospermum dalechampii
  264. Urosphena
  265. Urospora penicilliformis
  266. Urost
  267. Urosticte
  268. Urostrophus
  269. Urostrophus gallardoi
  270. Urostrophus Vautieri
  271. Uroš Barič
  272. Uroš Barič
  273. Uroš Ćosić
  274. Uroš Ćosić
  275. Uros Delić
  276. Uros Delić
  277. Uros Grilc
  278. Uroš I st Vukanović
  279. Uroš I st Vukanović
  280. Uros II Primslav
  281. Uroš Knežević
  282. Uroš Kovačević
  283. Uroš Marović
  284. Uroš Marović
  285. Uroš Matić
  286. Uroš Matić
  287. Uros Murn
  288. Uros Nikolić
  289. Uros Nikolić
  290. Uroš Nikolić (basketball)
  291. Uroš Pavlovčič
  292. Uroš Predić
  293. Uroš Predić
  294. Uroš Račić
  295. Uroš Račić
  296. Uros Silar
  297. Uros Slokar
  298. Uroš Spajić
  299. Uros Tripković
  300. Uros Tripković
  301. Uros Velepec
  302. Uros Vilovski
  303. Uros Vitas
  304. Uros Zorman
  305. Uroš Đurđević
  306. Uroš Đurđević
  307. Stolzmanns Urotangara
  308. Uroteuthis
  309. Uroteuthis ( Photololigo )
  310. Uroteuthis chinensis
  311. Uroteuthis duvauceli
  312. Uroteuthis sibogae
  313. Urotheca
  314. Urotheca decipiens
  315. Urotheca dumerilli
  316. Urotheca guentheri
  317. Urotheca lateristriga
  318. Urotheca multilineata
  319. Urotheca myersi
  320. Urotheca pachyura
  321. Urothemis
  322. Urotriainus
  323. Urotrichini
  324. Urotrichus
  325. Urotrygon
  326. Urotrygonidae
  327. Urotsukidoji
  328. Urou-et-Crennes
  329. Urovci
  330. UROVESA
  331. Urovica
  332. Uroža
  333. Urozelotes
  334. URO VAMTAC