1. Species Gelidium abbottiorum R.E.Norris, 1990
2. Species Gelidium aculeatum (Greville) Batters
3. Species Gelidium adriaticum C.Perrone, A.Bottalico, G.H.Boo & S.M.Boo, 2019
4. Species Gelidium affine Schiffner
5. Species Gelidium amamiense Tanaka & K.Nozawa, 1965
6. Species Gelidium amansii (J.V.Lamouroux) J.V.Lamouroux, 1813
7. Species Gelidium ambiguum Piccone & Grunow, 1884
8. Species Gelidium amboniense Hatta & Prud'homme van Reine, 1991
9. Species Gelidium americanum (W.R.Taylor) Santelices, 1976
10. Species Gelidium anthonini J.V.Lamouroux, 1813
11. Species Gelidium applanatum Stegenga, Bolton & R.J.Anderson, 1997
12. Species Gelidium arborescens N.L.Gardner, 1927
13. Species Gelidium arbuscula Bory ex Børgesen, 1927
14. Species Gelidium arenarium Kylin, 1938
15. Species Gelidium asperum (C.Agardh) Greville, 1830
16. Species Gelidium attenuatum (Turner) Thuret, 1892
17. Species Gelidium australe J.Agardh, 1872
18. Species Gelidium bernabei A.J.K.Millar & D.W.Freshwater, 2005
19. Species Gelidium brasiliense Brunelli, Boo & M.T.Fujii, 2018
20. Species Gelidium bulae Schnetter, 1982
21. Species Gelidium calidum Jamas, Iha & Fujii, 2017
22. Species Gelidium canariense (Grunow) Seoane-Camba ex Prud'homme, Haroun & Audiffred, 1994
23. Species Gelidium cantabricum Seoane-Camba, 1979
24. Species Gelidium capense (S.G.Gmelin) P.C.Silva, 1987
25. Species Gelidium carolinianum C.Perrone, D.W.Freshwater, A.Bottalico, G.H.Boo & S.M.Boo, 2019
26. Species Gelidium caulacantheum J.Agardh, 1876
27. Species Gelidium chilense (Montagne) Santelices & Montalva, 1983
28. Species Gelidium clavatum (J.V.Lamouroux) J.V.Lamouroux, 1813
29. Species Gelidium claviferum Kützing, 1849
30. Species Gelidium concinnum Baardseth, 1941
31. Species Gelidium congestum W.R.Taylor, 1947
32. Species Gelidium coreanum K.M.Kim, I.K.Hwang, H.S.Yoon & S.M.Boo, 2012
33. Species Gelidium corneum (Hudson) J.V.Lamouroux, 1813
34. Species Gelidium coronadense E.Y.Dawson, 1953
35. Species Gelidium corrigerum J.V.Lamouroux, 1813
36. Species Gelidium coulteri Harvey, 1853
37. Species Gelidium crinale (Hare ex Turner) Gaillon, 1828
38. Species Gelidium crispum M.Howe, 1914
39. Species Gelidium deciduum E.Y.Dawson, 1953
40. Species Gelidium declerckii Tronchin, 2005
41. Species Gelidium decompositum Setchell & Gardner, 1924
42. Species Gelidium delicatulum (Kützing) Setchell, 1924
43. Species Gelidium elegans Kützing, 1868
44. Species Gelidium elminense Dickinson, 1952
45. Species Gelidium eucorneum K.M.Kim, I.K.Hwang, J.K. Park & S.M.Boo, 2011
46. Species Gelidium fasciculatum G.Hamel, 1928
47. Species Gelidium filicinum Bory de Saint-Vincent, 1828
48. Species Gelidium flaccidum P.J.L.Dangeard, 1951
49. Species Gelidium floridanum W.R.Taylor, 1943
50. Species Gelidium foliaceum (Okamura) E.M.Tronchin, 2002
51. Species Gelidium foliosum P.J.L.Dangeard, 1951
52. Species Gelidium gabrielsonii Hughey & G.H.Boo, 2019
53. Species Gelidium galapagense W.R.Taylor, 1945
54. Species Gelidium guimaraesiae Brunelli, Milstein, Boo & M.T.Fujii, 2019
55. Species Gelidium hancockii W.R.Taylor, 1945
56. Species Gelidium heterocladum Papenfuss, 1947
57. Species Gelidium hirsutum (Okamura) G.H.Boo & R.Terada, 2016
58. Species Gelidium hommersandii A.J.K.Millar & D.W.Freshwater, 2005
59. Species Gelidium honghaiwanense X.L.Wang, B.M.Xia, A.Bottalico & G.C.Wang
60. Species Gelidium howei Acleto, 1973
61. Species Gelidium hystrix Zanardini
62. Species Gelidium inagakii Yoshida, 1997
63. Species Gelidium indonesianum K.M.Kim, G.S.Gerung & S.M.Boo, 2011
64. Species Gelidium inflexum Baardseth, 1941
65. Species Gelidium intertextum P.Dangeard, 1949
66. Species Gelidium isabelae W.R.Taylor, 1945
67. Species Gelidium japonicum (Harvey) Okamura, 1901
68. Species Gelidium jejuensis K.M.Kim, I.K.Hwang, H.S.Yoon & S.M.Boo, 2012
69. Species Gelidium johnstonii Setchell & N.L.Gardner, 1924
70. Species Gelidium kathyannniae G.H.Boo & Hughey, 2019
71. Species Gelidium kintaroi Yamada, 1941
72. Species Gelidium latiusculum Okamura, 1935
73. Species Gelidium lineare Iha & Freshwater, 2016
74. Species Gelidium lingulatum Kützing, 1868
75. Species Gelidium linoides Kützing, 1868
76. Species Gelidium longipes J.Agardh, 1876
77. Species Gelidium maggsiae Rico & Guiry, 1997
78. Species Gelidium maidenii A.H.S.Lucas, 1935
79. Species Gelidium masudae B.M.Xia & C.K.Tseng, 2002
80. Species Gelidium mcnabbianum (E.Y.Dawson) B.Santelices, 1998
81. Species Gelidium microdentatum E.Y.Dawson, 1960
82. Species Gelidium microdon Kützing, 1849
83. Species Gelidium microdonticum W.R.Taylor, 1969
84. Species Gelidium microglossum A.L.Grusz & Freshwater, 2014
85. Species Gelidium microphyllum (Crosby-Smith) Kylin, 1934
86. Species Gelidium microphysa Setchell & N.L.Gardner, 1930
87. Species Gelidium micropterum Kützing, 1868
88. Species Gelidium millarianum G.H.Boo, Hughey, K.A.Miller & S.M.Boo, 2016
89. Species Gelidium minimum K.M.Kim, I.K.Hwang, H.S.Yoon & S.M.Boo, 2012
90. Species Gelidium minusculum (Weber Bosse) R.E.Norris, 1992
91. Species Gelidium multifidum Greville, 1833
92. Species Gelidium nova-granatense W.R.Taylor, 1971
93. Species Gelidium nudifrons N.L.Gardner, 1927
94. Species Gelidium omanense M.J.Wynne, 2004
95. Species Gelidium pacificum Okamura, 1914
96. Species Gelidium pakistanicum (Afaq-Husain & Shameel) Shahnaz & Freshwater, 2019
97. Species Gelidium parvulum Greville, 1833
98. Species Gelidium pectinatum (Montagne) Montagne, 1846
99. Species Gelidium planiusculum Okamura, 1935
100. Species Gelidium pluma Bornet ex N.H.Loomis, 1960
101. Species Gelidium pristoides (Turner) Kützing, 1843
102. Species Gelidium profundum Tronchin & Freshwater, 2007
103. Species Gelidium proliferum Kützing, 1868
104. Species Gelidium prostratum K.M.Kim, I.K.Hwang, H.S.Yoon & S.M.Boo, 2012
105. Species Gelidium pseudointricatum Skottsberg & Levring, 1941
106. Species Gelidium pteridifolium R.E.Norris, Hommersand & Fredericq, 1987
107. Species Gelidium pulchellum (Turner) Kützing, 1868
108. Species Gelidium pulchrum N.L.Gardner, 1927
109. Species Gelidium pulvinatum Thuret ex Bornet, 1876
110. Species Gelidium purpurascens N.L.Gardner, 1927
111. Species Gelidium pusillum (Stackhouse) Le Jolis, 1863
112. Species Gelidium pygmaeum (Lightfoot) Lyngbye
113. Species Gelidium reediae N.H.Loomis, 1960
114. Species Gelidium refugiensis (E.Y.Dawson) Santelices, 2007
115. Species Gelidium regulare Baardseth, 1941
116. Species Gelidium reptans (Suhr) Kylin, 1938
117. Species Gelidium rex Santelices & I.A.Abbott, 1985
118. Species Gelidium rigens (C.Agardh) Greville ex Kützing, 1849
119. Species Gelidium robustum (N.L.Gardner) Hollenberg & I.A.Abbott, 1965
120. Species Gelidium samoense Reinbold, 1907
121. Species Gelidium sanyaense G.C.Wang & X.l.Wang, 2018
122. Species Gelidium sclerophyllum W.R.Taylor, 1945
123. Species Gelidium secundatum Zanardini ex Kützing, 1869
124. Species Gelidium seminudum J.Agardh, 1841
125. Species Gelidium semipinnatum Piccone & Grunow, 1884
126. Species Gelidium senegalense Feldmann
127. Species Gelidium sentosaense G.H.Boo, Y.Cai & S.M.Boo, 2016
128. Species Gelidium serpens J.Agardh, 1854
129. Species Gelidium serra (S.G.Gmelin) E.Taskin & M.J.Wynne, 2013
130. Species Gelidium serrulatum J.Agardh, 1847
131. Species Gelidium sinicola N.L.Gardner, 1927
132. Species Gelidium spathulatum (Kützing) Bornet, 1892
133. Species Gelidium spinosum (S.G.Gmelin) P.C.Silva, 1996
134. Species Gelidium subfastigiatum Okamura, 1933
135. Species Gelidium tenue Okamura, 1934
136. Species Gelidium tenuifolium Shimada, Horiguchi & Masuda, 2000
137. Species Gelidium torulosum Kützing, 1868
138. Species Gelidium tsengii K.-C.Fan, 1961
139. Species Gelidium undulatum N.H.Loomis, 1960
140. Species Gelidium usmanghanii Afaq-Husain & M.Shameel, 1996
141. Species Gelidium vagum Okamura, 1934
142. Species Gelidium venetum Schiffner, 1938
143. Species Gelidium versicolor (S.G.Gmelin) J.V.Lamouroux, 1813
144. Species Gelidium vietnamense P.H.Hô, 1969
145. Species Gelidium vittatum (Linnaeus) Kützing, 1843
146. Species Gelidium yamadae K.-C.Fan, 1951
147. Species Gelidium yangmeikengense G.C.Wang & X.L.Wang, 2018
148. Species Gelidium acrocarpum Harvey ex Kützing, 1869 accepted as Ceratodictyon repens (Kützing) R.E.Norris, 1987 (synonym)
149. Species Gelidium aculeatum Hering, 1846 accepted as Gracilaria aculeata (Hering) Papenfuss, 1967
150. Species Gelidium allanii V.J.Chapman, 1969 accepted as Gelidium johnstonii Setchell & N.L.Gardner, 1924
151. Species Gelidium bipectinatum G.Furnari, 1999 accepted as Gelidium pectinatum (Montagne) Montagne, 1846
152. Species Gelidium biserratum Børgesen, 1943 accepted as Ptilophora biserrata (Børgesen) R.E.Norris, 1987
153. Species Gelidium bornetii Weber-van Bosse, 1926 accepted as Gelidiella bornetii (Weber-van Bosse) Feldmann & G.Hamel, 1934
154. Species Gelidium caerulescens Kützing, 1868 accepted as Pterocladiella caerulescens (Kützing) Santelices & Hommersand, 1997 (synonym)
155. Species Gelidium caespitosum Kylin, 1938 accepted as Pterocladiella caespitosa (Kylin) Santelices, 1998 (synonym)
156. Species Gelidium calcicola (Maggs & Guiry) R.E.Norris, 1992 accepted as Gelidiella calcicola Maggs & Guiry, 1988
157. Species Gelidium caloglossoides M.Howe, 1914 accepted as Pterocladiella caloglossoides (M.Howe) Santelices, 1998 (synonym)
158. Species Gelidium canariensis (Grunow) Seoane Camba accepted as Gelidium canariense (Grunow) Seoane-Camba ex Prud'homme, Haroun & Audiffred, 1994
159. Species Gelidium capillaceum (S.G.Gmelin) Meneghini, 1854 accepted as Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand, 1997
160. Species Gelidium cartilagineum (Linnaeus) Gaillon, 1828 accepted as Plocamium cartilagineum (Linnaeus) P.S.Dixon, 1967 (synonym)
161. Species Gelidium ceramoides Levring, 1949 accepted as Zuccarelloa ceramoides (Levring) D'Archino & W.A.Nelson, 2017
162. Species Gelidium chungii Setchell & N.L.Gardner, 1935 accepted as Gelidium vagum Okamura, 1934 (synonym)
163. Species Gelidium clavatum Okamura, 1934 accepted as Gelidium kintaroi Yamada, 1941
164. Species Gelidium coarctatum Kützing, 1868 accepted as Gelidium capense (S.G.Gmelin) P.C.Silva, 1987
165. Species Gelidium compositum Kützing, 1868 accepted as Nizymenia australis Sonder, 1855
166. Species Gelidium constrictum (Turner) Kützing, 1849 accepted as Polyopes constrictus (Turner) J.Agardh, 1851
167. Species Gelidium contortum N.H.Loomis, 1960 accepted as Gelidium purpurascens N.L.Gardner, 1927
168. Species Gelidium crinitum (S.G.Gmelin) Kützing, 1843 accepted as Tichocarpus crinitus (S.G.Gmelin) Ruprecht, 1850 (synonym)
169. Species Gelidium decipiens Montagne, 1842 accepted as Neorubra decipiens (Montagne) M.S.Calderon, G.H.Boo & S.M.Boo, 2014
170. Species Gelidium decumbensum Okamura, 1934 accepted as Pterocladiella tenuis (Okamura) Shimada, Horiguchi & Masuda, 2000
171. Species Gelidium densum Okamura, 1935 accepted as Gelidium yamadae K.-C.Fan, 1951
172. Species Gelidium densum N.L.Gardner, 1927 accepted as Gelidium purpurascens N.L.Gardner, 1927
173. Species Gelidium dentatum Kützing, 1843 accepted as Beckerella dentata (Kützing) Athanasiadis, 2016 accepted as Ptilophora dentata (Kützing) Alongi, Cormaci & Furnari, 2020 (superseded original combination)
174. Species Gelidium dictichum N.H.Loomis, 1949 accepted as Gelidium purpurascens N.L.Gardner, 1927
175. Species Gelidium divaricatum G.Martens, 1866 accepted as Gelidiophycus divaricatus (G.Martens) G.H.Boo, J.K.Park & S.M.Boo, 2013
176. Species Gelidium fastigiatum Kützing, 1862 accepted as Trematocarpus flabellatus (J.Agardh) De Toni, 1900
177. Species Gelidium gardneri N.H.Loomis, 1960 accepted as Gelidium purpurascens N.L.Gardner, 1927
178. Species Gelidium gigartinum (Linnaeus) Lyngbye, 1819 accepted as Gigartina pistillata (S.G.Gmelin) Stackhouse, 1809
179. Species Gelidium glandulaefolium J.D.Hooker & Harvey, 1847 accepted as Gelidium asperum (C.Agardh) Greville, 1830
180. Species Gelidium grubbae Fan, 1961 accepted as Gelidium vagum Okamura, 1934
181. Species Gelidium helenae Dickinson, 1950 accepted as Ptilophora pectinata (A.Gepp & E.S.Gepp) R.E.Norris, 1987
182. Species Gelidium heteroplatos Børgesen, 1934 accepted as Pterocladia heteroplatos (Børgesen) Umamaheswara Rao & Kaliaperumal, 1982 (synonym)
183. Species Gelidium hildebrandtii (Hauck) F.Schmitz, 1894 accepted as Ptilophora hildebrandtii (Hauck) R.E.Norris, 1990
184. Species Gelidium hildenbrandtii (Hauck) F.Schmitz, 1894 accepted as Ptilophora hildebrandtii (Hauck) R.E.Norris, 1990
185. Species Gelidium intricatum (C.Agardh) Kützing, 1849 accepted as Ceratodictyon intricatum (C.Agardh) R.E.Norris, 1987 (synonym)
186. Species Gelidium irregulare N.H.Loomis, 1960 accepted as Pterocladiella caerulescens (Kützing) Santelices & Hommersand, 1997
187. Species Gelidium koshikianum S.Shimada, H.Horiguchi & M.Masuda, 2000 accepted as Gelidium johnstonii Setchell & N.L.Gardner, 1924
188. Species Gelidium lanceolatum Harvey, 1833 accepted as Prionitis lanceolata (Harvey) Harvey, 1853
189. Species Gelidium latifolium Bornet ex Hauck, 1883 accepted as Gelidium spinosum (S.G.Gmelin) P.C.Silva, 1996 (synonym)
190. Species Gelidium lingulatum J.Agardh, 1872 accepted as Gelidium lingulatum Kützing, 1868 (synonym)
191. Species Gelidium lubricum (Kützing) Trevisan, 1845 accepted as Gelidiella lubrica (Kützing) Feldmann & Hamel, 1934
192. Species Gelidium lubricum (Kützing) Zanardini, 1847 accepted as Gelidiella lubrica (Kützing) Feldmann & Hamel, 1934
193. Species Gelidium lucasii V.M.May, 1944 accepted as Ptilophora pectinata (A.Gepp & E.S.Gepp) R.E.Norris, 1987 (synonym)
194. Species Gelidium lucidum (R.Brown ex Turner) Sonder, 1848 accepted as Pterocladia lucida (R.Brown ex Turner) J.Agardh, 1851
195. Species Gelidium madagascariense Andriamampandry, 1988 accepted as Orthogonacladia madagascariense (Andriamampandry) G.H.Boo & Le Gall, 2016
196. Species Gelidium melanoideum Schousboe ex Bornet, 1892 accepted as Pterocladiella melanoidea (Schousboe ex Bornet) Santelices & Hommersand, 1997 (synonym)
197. Species Gelidium miniatum Kützing accepted as Wurdemannia miniata (Sprengel) Feldmann & Hamel, 1934
198. Species Gelidium multicorne Kützing, 1868 accepted as Carpopeltis maillardii (Montagne & Millardet) Chiang, 1970 (synonym)
199. Species Gelidium muricatum Endlicher, 1843 accepted as Endocladia muricata (Endlicher) J.Agardh, 1847 (synonym)
200. Species Gelidium musciforme (W.R.Taylor) Santelices, 1991 accepted as Pterocladiella musciformis (W.R.Taylor) G.H.Boo & K.A.Miller, 2016
201. Species Gelidium nanum Inagaki, 1950 accepted as Gelidium inagakii Yoshida, 1997
202. Species Gelidium neglectum Bory de Saint-Vincent, 1832 accepted as Grateloupia filicina (J.V.Lamouroux) C.Agardh, 1822
203. Species Gelidium okamurae Setchell & N.L.Gardner, 1937 accepted as Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand, 1997
204. Species Gelidium oppositifolium (C.Agardh) Greville, 1830 accepted as Callophycus oppositifolius (C.Agardh) P.C.Silva, 1957
205. Species Gelidium pannosum Grunow, 1874 accepted as Ceratodictyon pannosum (Grunow) R.E.Norris (synonym)
206. Species Gelidium pannosum Bornet ex Weber-van Bosse, 1921 accepted as Parviphycus pannosus (Feldmann) G.Furnari, 2010 accepted as Millerella pannosa (Feldmann) G.H.Boo & L.Le Gall, 2016 (synonym)
207. Species Gelidium papenfussii N.H.Loomis, 1949 accepted as Gelidium purpurascens N.L.Gardner, 1927
208. Species Gelidium pinnatifidum (Hudson) Lyngbye, 1819 accepted as Osmundea pinnatifida (Hudson) Stackhouse, 1809
209. Species Gelidium pinnatifidum (J.Agardh) F.Schmitz, 1894 accepted as Beckerella pinnatifida (J.Agardh) Kylin, 1956 accepted as Ptilophora pinnatifida J.Agardh, 1885
210. Species Gelidium polycladum Kützing, 1868 accepted as Gelidium spathulatum (Kützing) Bornet, 1892
211. Species Gelidium polystichum Gardner, 1927 accepted as Gelidium purpurascens N.L.Gardner, 1927
212. Species Gelidium proliferum Harvey, 1855 accepted as Ptilophora prolifera (Harvey) J.Agardh, 1876
213. Species Gelidium pulvinatum (C.Agardh) Grunow, 1868 accepted as Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann, 1936
214. Species Gelidium pyramidale N.L.Gardner, 1927 accepted as Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand, 1997
215. Species Gelidium radicans (Bory de Saint-Vincent) Kützing, 1849 accepted as Gelidium rigidum var. radicans (Bory) J.Agardh, 1851
216. Species Gelidium ramelliferum Kützing, 1863 accepted as Gelidiella acerosa (Forsskål) Feldmann & Hamel, 1934 (synonym)
217. Species Gelidium ramellosum (Kützing) Trevisan, 1845 accepted as Gelidiella ramellosa (Kützing) Feldmann & Hamel, 1934 accepted as Huismaniella ramellosa (Kützing) G.H.Boo & S.M.Boo, 2016
218. Species Gelidium ramuliferum Gardner, 1927 accepted as Gelidium purpurascens N.L.Gardner, 1927
219. Species Gelidium rectangulare A.H.S.Lucas, 1931 accepted as Orthogonacladia rectangularis (A.H.S.Lucas) G.H.Boo & T.Wernberg, 2016
220. Species Gelidium repens Okamura, 1899 accepted as Gelidium pusillum (Stackhouse) Le Jolis, 1863 (synonym)
221. Species Gelidium repens Kützing, 1868 accepted as Ceratodictyon repens (Kützing) R.E.Norris, 1987 (synonym)
222. Species Gelidium rigidum (C.Agardh) Greville, 1830 accepted as Gelidiella acerosa (Forsskål) Feldmann & Hamel, 1934
223. Species Gelidium rostratum (Lyngbye) A.W.Griffiths ex Harvey, 1841 accepted as Pantoneura fabriciana (Lyngbye) M.J.Wynne, 1997 accepted as Membranoptera fabriciana (Lyngbye) M.J.Wynne & G.W.Saunders, 2012
224. Species Gelidium rumpii Dickinson, 1950 accepted as Ptilophora rumpii (Dickinson) R.E.Norris, 1987
225. Species Gelidium scoparium Montagne & Millardet, 1862 accepted as Ceratodictyon scoparium (Montagne & Millardet) R.E.Norris, 1987 (synonym)
226. Species Gelidium serratum Kützing, 1868 accepted as Callophycus africanus (F.Schmitz) F.E.Hewitt, 1960
227. Species Gelidium sesquipedale (Clemente) Thuret, 1876 accepted as Gelidium corneum (Hudson) J.V.Lamouroux, 1813 (synonym)
228. Species Gelidium setchellii N.L.Gardner, 1927 accepted as Gelidium purpurascens N.L.Gardner, 1927
229. Species Gelidium sonorense E.Y.Dawson, 1953 accepted as Pterocladia sonorensis (E.Y.Dawson) J.G.Stewart & J.N.Norris, 2014
230. Species Gelidium spinescens (Kützing) Zanardini, 1847 accepted as Gelidium crinale (Hare ex Turner) Gaillon, 1828
231. Species Gelidium spinescens (Kützing) Trevisan, 1845 accepted as Gelidium crinale (Hare ex Turner) Gaillon, 1828
232. Species Gelidium spiniforme (J.V.Lamouroux) J.V.Lamouroux, 1813 accepted as Gelidiella acerosa (Forsskål) Feldmann & Hamel, 1934
233. Species Gelidium spinulosum (C.Agardh) J.Agardh, 1851 accepted as Gelidium microdon Kützing, 1849
234. Species Gelidium sternbergii (C.Agardh) Greville, 1830 accepted as Prionitis sternbergii (C.Agardh) J.Agardh, 1851 (synonym)
235. Species Gelidium subcostatum Okamura, 1894 accepted as Ptilophora subcostata (Okamura) R.E.Norris, 1987
236. Species Gelidium supradecompositum Kützing accepted as Gelidium pulchellum var. supradecompositum (Küzting) P.J.L.Dangeard (synonym)
237. Species Gelidium tenuissimum Feldmann & Hamel, 1936 accepted as Parviphycus pannosus (Feldmann) G.Furnari, 2010 accepted as Millerella pannosa (Feldmann) G.H.Boo & L.Le Gall, 2016
238. Species Gelidium tropicum (E.Y.Dawson) Verheij & Prud'homme van Reine, 1993 accepted as Pterocladiella caerulescens (Kützing) Santelices & Hommersand, 1997
239. Species Gelidium ustulatum (Mertens ex Turner) J.Agardh, 1842 accepted as Caulacanthus ustulatus (Turner) Kützing, 1843
240. Species Gelidium variabile Greville ex J.Agardh, 1851 accepted as Ceratodictyon variabile (J.Agardh) R.E.Norris, 1987 (synonym)
241. Species Gelidium venturianum E.Y.Dawson, 1958 accepted as Gelidium coulteri Harvey, 1853
242. Species Gelidium zollingeri Sonder, 1854 accepted as Yonagunia zollingeri (Sonder) G.H.Boo, J.K.Park, G.S.Gerung & S.M.Boo, 2013
243. Species Gelidium zollingeri (Kützing) K.M.Kim, G.S.Gerung & S.M.Boo, 2011 accepted as Gelidium indonesianum K.M.Kim, G.S.Gerung & S.M.Boo, 2011 (synonym)
244. Species Gelidium hypnosum Zanardini ex R.Molinier, 1960 (uncertain)
245. Species Gelidium obtusum Schousboe (uncertain)
246. Species Gelidium plumula Zanardini, 1843 (uncertain, uncertain taxonomic status subjected to verification)
247. Species Gelidium rugosulum Schousboe (uncertain)

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