1. Species Ulvella acervus P.J.L.Dangeard, 1965
2. Species Ulvella aequicrassa R.Nielsen, 2013
3. Species Ulvella apiculata (Setchell & N.L.Gardner) C.J.O'Kelly, 2012
4. Species Ulvella bullata (C.-C.Jao) H.Zhu & G.Liu, 2015
5. Species Ulvella calcicola A.B.Cribb, 1995
6. Species Ulvella cingens (Setchell & N.L.Gardner) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
7. Species Ulvella cladophorae (Hornby) A.C.Mathieson & Dawes, 2017
8. Species Ulvella codicola (Setchell & N.L.Gardner) R.Nielsen, C.J.O'Kelly & B Wysor, 2013
9. Species Ulvella conchicola Levring, 1937
10. Species Ulvella conchyliophila (J.Feldmann) M.Cormaci, G.Furnari & G.Alongi, 2014
11. Species Ulvella crenulata R.Lami, 1935
12. Species Ulvella dasycala R.Nielsen, 2013
13. Species Ulvella elegans R.Nielsen & K.Gunnarsson, 2014
14. Species Ulvella endolithica (Ercegovic) M.Cormaci, G.Furnari & G.Alongi, 2014
15. Species Ulvella endostraca (R.Nielsen) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
16. Species Ulvella endozoica (Goldberg, Makemson & Colley) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
17. Species Ulvella ercegovicii Cormaci, G.Furnari & Alongi, 2014
18. Species Ulvella geniculata (N.L.Gardner) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
19. Species Ulvella gigas R.Nielsen, 2013
20. Species Ulvella glabra R.Nielsen, 2013
21. Species Ulvella globocaespitosa R.Nielsen, 2013
22. Species Ulvella gratulans (Weber-van Bosse) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
23. Species Ulvella heteroclada (Correa & R.Nielsen)R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
24. Species Ulvella inflata (Ercegovic) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
25. Species Ulvella inopinata R.Nielsen, 2013
26. Species Ulvella involvens (P.Savi) Schmidle
27. Species Ulvella islandica R.Nielsen & K.Gunnarsson, 2014
28. Species Ulvella lens P.Crouan & H.Crouan, 1859
29. Species Ulvella leptochaete (Huber) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
30. Species Ulvella major (Feldmann) M.Cormaci, G.Furnari & G.Alongi, 2014
31. Species Ulvella marchantiae (Setchell & N.L.Gardner) R.Nielsen, C.J.O'Kelly & B Wysor, 2013
32. Species Ulvella mauritiana (Borgesen) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
33. Species Ulvella nadsonii (Rochlina) Gallardo, Gómez Garreta, Ribera, Cormaci, Furnari, Giaccone & Boudouresque, 1993
34. Species Ulvella operculata (Correa & R.Nielsen) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
35. Species Ulvella pachypes R.Nielsen, 2013
36. Species Ulvella parasitica (Oltmanns) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
37. Species Ulvella peltata P.J.L.Dangeard, 1953
38. Species Ulvella pennata (Feldmann) M.Cormaci, G.Furnari & G.Alongi, 2014
39. Species Ulvella perfurcata Kraft, 2007
40. Species Ulvella pithophorae (G.S.West) Škaloud & Leliaert, 2018
41. Species Ulvella porphyrae (Feldmann) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
42. Species Ulvella prasina (C.-C.Jao) H.Zhu & G.Liu, 2015
43. Species Ulvella prostrata N.L.Gardner, 1909
44. Species Ulvella protuberans P.J.L.Dangeard, 1961
45. Species Ulvella pseudorepens R.Nielsen, 2013
46. Species Ulvella pseudosetchellii P.J.L.Dangeard, 1969
47. Species Ulvella pterosiphoniae (Nagai) Selivanova & Zhigadlova, 2014
48. Species Ulvella ramosa (N.L.Gardner) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
49. Species Ulvella ramulosa (L.Moewus) R.Nielsen, C.J.O'Kelly & B. Wysor, 2013
50. Species Ulvella repens (Pringsheim) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
51. Species Ulvella reticulata (Printz) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
52. Species Ulvella santae-luciae (R.Nielsen & McLachlan) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
53. Species Ulvella scutata (Reinke) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
54. Species Ulvella setchellii P.J.L.Dangeard, 1931
55. Species Ulvella shanxiensis H.Su, J. Feng & S.Xie, 2018
56. Species Ulvella spongophila (Weber Bosse) Škaloud & Leliaert, 2018
57. Species Ulvella stellata P.J.L.Dangeard, 1965
58. Species Ulvella striata (Cribb) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
59. Species Ulvella taylorii (Thivy) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
60. Species Ulvella testarum (Kylin) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
61. Species Ulvella tongshanensis H.Zhu & G.Liu, 2015
62. Species Ulvella udoteae (Borgesen) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
63. Species Ulvella vacuospora R.Nielsen, 2013
64. Species Ulvella viridis (Reinke) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
65. Species Ulvella waernii R.Nielsen, 2013
66. Species Ulvella wittrockii (Wille) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013
67. Species Ulvella americana J.W.Snow, 1899 accepted as Pseudulvella americana (J.W.Snow) Wille, 1909 (synonym)
68. Species Ulvella applanata (Setchell & Gardner) G.R.South & Tittley accepted as Ulvella lens P.Crouan & H.Crouan, 1859 (synonym)
69. Species Ulvella beesleyi F.E.Fritsch, 1927 accepted as Protoderma beesleyi (F.E.Fritsch) Printz, 1964 (synonym)
70. Species Ulvella confluens Rosenvinge, 1893 accepted as Pseudopringsheimia confluens (Rosenvinge) Wille, 1909 (synonym)
71. Species Ulvella frequens Butcher, 1932 accepted as Protoderma frequens (Butcher) Printz, 1964 (synonym)
72. Species Ulvella fucicola Rosenvinge, 1893 accepted as Pseudendoclonium fucicola (Rosenvinge) R.Nielsen, 1980 (synonym)
73. Species Ulvella heterotricha (Yarish) M.J.Wynne, 1986 accepted as Epicladia heterotricha (Yarish) R.Nielsen, 1988 (synonym)
74. Species Ulvella microcystis P.J.L.Dangeard, 1965 accepted as Neodangemannia microcystis M.J.Wynne, G.Furnari, A.Kryvenda & T.Friedl, 2014
75. Species Ulvella monostromatica P.J.L.Dangeard, 1965 accepted as Neostromatella monostromatica M.J.Wynne, G.Furnari & R.Nielsen, 2014 (synonym)
76. Species Ulvella papillosa P.J.L.Dangeard, 1965 accepted as Stromatella papillosa (P.J.L.Dangeard) Kornmann & Sahling, 1985 (unaccepted > junior objective synonym)
77. Species Ulvella virescens Bory de Saint-Vincent, 1825 accepted as Synura virescens (Bory) Playfair, 1921 (synonym)

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