1. Ebala Gray 1847
2. Ebaliopsis Ihle 1918
3. Echelus Rafinesque 1810
4. Echeneibothrium Van Beneden 1849
5. Echeneis Linnaeus 1758
6. Echinochloa P. de Beauvois
7. Echinococcus Rudolphi 1801
8. Echinolampas Gray 1825
9. Echinolittorina Habe 1956
10. Echinoparyphium Dietz 1909
11. Echinopla Smith 1857
12. Echinopora Lamarck 1816
13. Echinostoma Rudolphi 1809
14. Echinuria Soloviev 1912
15. Echynotriton Nussbaum & Brodie 1982
16. Ecklonia Hornemann 1828
17. Ecsenius McCulloch 1923
18. Ectocyclops Brady 1904
19. Ectomomyrmex Mayr 1867
20. Ectopleura L. Agassiz 1862
21. Egeria Planchon
22. Egretta T. Forster 1817
23. Eguchipsammia Cairns 1994
24. Ehretia P.Browne
25. Eimeria Schneider 1875
26. Eisenia J.E. Areschoug 1876 (Phaeophyceae)
27. Eisenia Michaelsen 1900 (Oligochaeta)
28. Elaeagnus Linné
29. Elaeocarpus Linné 1760
30. Elagatis Bennett 1840
31. Elaphe Wagler 1833
32. Elaphoidella Chappuis 1928
33. Elaphrus Fabricius 1775
34. Elaphropus Motschulsky 1839
35. Elasmopus A. Costa 1853
36. Eleginus G. Fischer 1813
37. Eleotris Gronovius 1763
38. Eleusine J. Gaertner
39. Eleutherococcus Maximovich 1855
40. Eleutheronema Bleeker 1862
41. Ellobius Fischer 1814
42. Elthusa Schioedte & Meinert 1884
43. Emberiza Linnaeus 1758
44. Emmelichthys Richardson 1845
45. Encrasicholina Fowler 1938
46. Endasys Förster 1869
47. Endochus Stål 1859
48. Engraulis Cuvier 1816
49. Engyprosopon Günther 1862
50. Enispa Schioedte & Meinert 1884
51. Enneapterygius Rüppell 1835
52. Enochrus Thomson 1859
53. Entacmaea Ehrenberg 1834
54. Enterobius Leach 1853
55. Enteromorpha Link 1820
56. Entomacrodus Gill 1859
57. Entosiphon Stein 1878
58. Entosphenus T.N. Gill 1862
59. Eohaustorioides Bousfield in Bousfield & Tzvetkova 1982
60. Eolagurus Argyropulo 1946
61. Eophona Gould 1851
62. Eopsetta Jordan & Goss 1885
63. Eothenomys Miller 1896
64. Epactophanes Mrázek 1893
65. Ephialtes Gravenhorst 1829
66. Epidamaeus Bulanova-Zachvatkina 1957
67. Epilachna Chevrolat in Dejean 1836
68. Epinephelus Bloch 1793
69. Epiphanes Ehrenberg 1832
70. Epipremnum H.W. Schott 1857
71. Epitheca Burmeister 1839
72. Epitonium Röding 1798
73. Epizoanthus Gray 1867
74. Eplumula Williams 1982
75. Epomidostomum Skrjabin 1915
76. Epomis Bonelli 1810
77. Eptatretus Cloquet 1819
78. Equisetum Linné
79. Equulites Fowler 1904
80. Eragrostis Wolf
81. Eretes Laporte 1833
82. Ergalatax Iredale 1931
83. Ergasilus von Nordmann 1832
84. Erinaceusyllis San Martín 2005
85. Eriobotrya Lindley
86. Eriocheir De Haan 1835
87. Eriotremex Benson 1943
88. Eriphia Latreille 1817
89. Erisphex D.S. Jordan & Starks 1904
90. Erithacus Cuvier 1800
91. Ernestinus Distant 1911
92. Erosa Swainson 1839
93. Erythrocles Jordan 1919
94. Esox Linnaeus 1758
95. Esperiopsis Carter 1882
96. Etrumeus Bleeker 1853
97. Eualus Thallwitz 1892
98. Eucalanus Dana 1852
99. Eucalathis Fischer & Œhlert 1890
100. Eucheilota McCrady 1859
101. Euchelipluma Topsent 1909
102. Euchlanis Ehrenberg 1832
103. Euchone Malmgren 1866
104. Euchoreutes Sclater 1891
105. Eucoila Westwood 1833
106. Eucoilia Westwood 1839
107. Eucoleus Dujardin 1845
108. Eucyclops Claus 1893
109. Eudendrium Ehrenberg 1834
110. Eufilaria Seurat 1921
111. Eugenuris Schulz 1948
112. Euglena Ehrenberg 1830
113. Eugnathogobius Smith 1931
114. Eugymnanthea Palombi 1936
115. Euhadra Pilsbry 1890
116. Eulaelaps Berlese 1903
117. Eulalia Savigny 1817
118. Eulamia Gill 1862
119. Eumecichthys Regan 1907
120. Eumerus Meigen 1822
121. Eumetopias Gill 1866
122. Eumida Malmgren 1865
123. Eunice Cuvier 1817
124. Eupatorium Linné
125. Euphaedusa Böttger 1877
126. Euphausia Dana 1850
127. Euphorbia Linné
128. Euphyllia Dana 1846
129. Euphysora Maas 1905
130. Euplectella Owen 1841
131. Euplica Dall 1889
132. Euplynes Schmidt-Goebel 1846
133. Euponera Forel 1891
134. Euraphia Conrad 1837
135. Eurema Hübner 1819
136. Eurhamphaea Gegenbaur 1856
137. Euroscaptor Miller 1940
138. Eurya Thunberg 1783
139. Euryale R.A. Salisbury
140. Eurycea Rafinesque 1822
141. Euryperis Motschulsky 1850
142. Eurythenes Smith 1882
143. Eurythoe Kinberg 1857
144. Eurythoracana E. Strand 1936
145. Eurytoma Illiger 1807
146. Eusilpha A.P. Semenov 1890
147. Eusphingonotus Bey-Bienko 1950
148. Eusphyra T.N. Gill 1862
149. Eustomias Filhol 1884
150. Eustrongylides Jägerskiöld 1909
151. Eutaeniichthys Jordan & Snyder 1901
152. Eutamias Trouessart 1880
153. Euthynnus Lütken in Jordan & Gilbert 1883
154. Eutima McCrady 1859
155. Eutomostethus Enslin 1914
156. Eviota Jenkins 1903
157. Evynnis Jordan & Thompson 1912
158. Excirolana Richardson 1912
159. Exogone Örsted 1845
160. Exorchis Kobayashi 1921