1. Species Sphaerococcus aculeatus Kützing, 1849
2. Species Sphaerococcus aculeatus Zanardini ex Frauenfeld, 1855
3. Species Sphaerococcus cartilagineus
4. Species Sphaerococcus ciliatus
5. Species Sphaerococcus corallinus
6. Species Sphaerococcus coronopifolius Stackhouse, 1797
7. Species Sphaerococcus crispus
8. Species Sphaerococcus densus
9. Species Sphaerococcus dumosus Martius, 1833
10. Species Sphaerococcus gaditanus Montagne, 1838
11. Species Sphaerococcus gigartinus
12. Species Sphaerococcus multipartitus
13. Species Sphaerococcus palmettus
14. Species Sphaerococcus rhizophylloides J.J.Rodríguez y Femenías, 1895
15. Species Sphaerococcus abscissus (Turner) C.Agardh, 1822 accepted as Melanthalia abscissa (Turner) J.D.Hooker & Harvey, 1845 (synonym)
16. Species Sphaerococcus acicularis (Roth) C.Agardh, 1817 accepted as Chondracanthus acicularis (Roth) Fredericq, 1993 (synonym)
17. Species Sphaerococcus aculeatus Hering, 1841 accepted as Gracilaria aculeata (Hering) Papenfuss, 1967
18. Species Sphaerococcus aculeatus (Linnaeus) Stackhouse, 1797 accepted as Desmarestia aculeata (Linnaeus) J.V.Lamouroux, 1813
19. Species Sphaerococcus alatus (Hudson) Wahlenberg, 1826 accepted as Membranoptera alata (Hudson) Stackhouse, 1809
20. Species Sphaerococcus alcicornis (J.Agardh) Kützing, 1849 accepted as Austrophyllis alcicornis (J.Agardh) Womersley & R.E.Norris, 1971
21. Species Sphaerococcus alveatus (Turner) C.Agardh, 1822 accepted as Psilophycus alveatus (Turner) W.A.Nelson, Leister & Hommersand, 2011 (synonym)
22. Species Sphaerococcus angustifolius Kützing, 1868 accepted as Schottera angustifolia (Kützing) A.J.K.Millar, 2005 (synonym)
23. Species Sphaerococcus armatus C.Agardh, 1827 accepted as Gracilaria armata (C.Agardh) Greville, 1830
24. Species Sphaerococcus articulatus (Hudson) Stackhouse, 1797 accepted as Lomentaria articulata (Hudson) Lyngbye, 1819 (synonym)
25. Species Sphaerococcus asper C.Agardh, 1822 accepted as Gelidium asperum (C.Agardh) Greville, 1830
26. Species Sphaerococcus attenuatus C.Agardh, 1823 accepted as Dicranema attenuatum (C.Agardh) Okamura, 1932
27. Species Sphaerococcus australis Kützing, 1849 accepted as Halopeltis australis (J.Agardh) G.W.Saunders, 2010 (synonym)
28. Species Sphaerococcus australis Harvey, 1844 accepted as Callophyllis rangiferina (R.Brown ex Turner) Womersley, 1973
29. Species Sphaerococcus bangii (Hornemann) C.Agardh, 1817 accepted as Phyllophora crispa (Hudson) P.S.Dixon, 1964
30. Species Sphaerococcus brodiei (Turner) C.Agardh, 1817 accepted as Coccotylus brodiei (Turner) Kützing, 1843
31. Species Sphaerococcus burmannii C.Agardh, 1822 accepted as Sarcothalia stiriata (Turner) Leister, 1993
32. Species Sphaerococcus canaliculatus C.Agardh, 1822 accepted as Chondrus canaliculatus (C.Agardh) Greville, 1830
33. Species Sphaerococcus canaliculatus Kützing, 1868 accepted as Gracilaria canaliculata Sonder, 1871
34. Species Sphaerococcus capillaceus (S.G.Gmelin) Naccari, 1828 accepted as Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand, 1997 (synonym)
35. Species Sphaerococcus capillaris Kützing, 1863 accepted as Gracilaria gracilis (Stackhouse) Steentoft, L.M.Irvine & Farnham, 1995
36. Species Sphaerococcus caulescens Kützing, 1868 accepted as Rhodymenia caulescens (Kützing) A.J.K.Millar, 2005 (synonym)
37. Species Sphaerococcus cervicornis (Turner) C.Agardh, 1817 accepted as Gracilaria cervicornis (Turner) J.Agardh, 1852
38. Species Sphaerococcus chamissoi C.Agardh, 1820 accepted as Chondracanthus chamissoi (C.Agardh) Kützing, 1843
39. Species Sphaerococcus chauvinii Bory de Saint-Vincent, 1828 accepted as Chondracanthus chauvinii (Bory) Kützing, 1843
40. Species Sphaerococcus chondracanthus Kützing, 1863 accepted as Gracilaria chondracantha (Kützing) A.J.K.Millar, 2005 (synonym)
41. Species Sphaerococcus chondroides Kützing, 1849 accepted as Gracilaria chondroides (Kützing) P.L.Crouan & H.M.Crouan, 1878 (synonym)
42. Species Sphaerococcus cinnibarinus (J.Agardh) Kützing, 1849 accepted as Rhodymenia cinnabarina J.Agardh, 1841
43. Species Sphaerococcus clavatus (Lamouroux) Naccari, 1828 accepted as Gelidium clavatum (J.V.Lamouroux) J.V.Lamouroux, 1813 (synonym)
44. Species Sphaerococcus coccineus Wahlenberg, 1826 accepted as Euthora cristata (C.Agardh) J.Agardh, 1847
45. Species Sphaerococcus compressus C.Agardh, 1822 accepted as Gracilaria bursa-pastoris (S.G.Gmelin) P.C.Silva, 1952
46. Species Sphaerococcus concinnus (R.Brown ex Turner) C.Agardh, 1822 accepted as Trematocarpus concinnus (R.Brown ex Turner) De Toni, 1900
47. Species Sphaerococcus confervoides (F.H.Wiggers) Stackhouse, 1797 accepted as Gracilariopsis longissima (S.G.Gmelin) Steentoft, L.M.Irvine & Farnham, 1995 (synonym)
48. Species Sphaerococcus confervoides (Hudson) C.Agardh, 1817 accepted as Rhodomela confervoides (Hudson) P.C.Silva, 1952
49. Species Sphaerococcus congestus (R.Brown ex Turner) C.Agardh, 1817 accepted as Areschougia congesta (R.Brown ex Turner) J.Agardh, 1872
50. Species Sphaerococcus constrictus (Turner) C.Agardh, 1822 accepted as Polyopes constrictus (Turner) J.Agardh, 1851
51. Species Sphaerococcus corallina Bory de Saint-Vincent, 1828 accepted as Rhodymenia corallina (Bory de Saint-Vincent) Greville, 1830
52. Species Sphaerococcus corallopsis Montagne, 1842 accepted as Palisada corallopsis (Montagne) Sentíes, Fujii & Díaz-Larrea, 2008
53. Species Sphaerococcus coriaceus Sonder, 1845 accepted as Callophycus dorsiferus (C.Agardh) P.C.Silva, 1957
54. Species Sphaerococcus coriaceus (J.D.Hooker & Harvey) Kützing, 1849 accepted as Curdiea coriacea (J.D.Hooker & Harvey) J.Agardh, 1876
55. Species Sphaerococcus corneus (Hudson) Stackhouse, 1797 accepted as Gelidium corneum (Hudson) J.V.Lamouroux, 1813
56. Species Sphaerococcus corniculatus C.Agardh, 1817 accepted as Gracilaria corniculata (C.Agardh) J.Agardh, 1852
57. Species Sphaerococcus cornutus (Turner) C.Agardh, 1822 accepted as Plocamium cornutum (Turner) Harvey, 1849 (synonym)
58. Species Sphaerococcus corticatus (J.Agardh) Kützing, 1849 accepted as Gracilaria corticata (J.Agardh) J.Agardh, 1852
59. Species Sphaerococcus crassifolius C.Agardh, 1822 accepted as Sarcothalia crassifolia (C.Agardh) Edyvane & Womersley, 1994
60. Species Sphaerococcus crinitus (S.G.Gmelin) C.Agardh, 1822 accepted as Tichocarpus crinitus (S.G.Gmelin) Ruprecht, 1850 (synonym)
61. Species Sphaerococcus cristatus C.Agardh, 1817 accepted as Euthora cristata (C.Agardh) J.Agardh, 1847
62. Species Sphaerococcus dactyloides (Sonder) Kützing, 1849 accepted as Hymenocladia dactyloides (Sonder) J.Agardh, 1870
63. Species Sphaerococcus dasyphyllus (Woodward) Stackhouse, 1797 accepted as Chondria dasyphylla (Woodward) C.Agardh, 1817 (synonym)
64. Species Sphaerococcus dentatus (Linnaeus) C.Agardh, 1817 accepted as Odonthalia dentata (Linnaeus) Lyngbye, 1819
65. Species Sphaerococcus denticulatus Kützing, 1869 accepted as Gracilaria vieillardii P.C.Silva, 1987
66. Species Sphaerococcus difficilis C.Agardh, 1822 accepted as Cystoclonium difficile (C.Agardh) J.Agardh, 1851 (synonym)
67. Species Sphaerococcus dilatatus (Turner) C.Agardh, 1817 accepted as Gymnogongrus dilatatus (Turner) J.Agardh, 1851
68. Species Sphaerococcus disciplinalis Bory de Saint-Vincent, 1929 accepted as Asterfilopsis disciplinalis (Bory) M.S.Calderon & S.M.Boo, 2016
69. Species Sphaerococcus distentus (Mertens ex Roth) C.Agardh, 1817 accepted as Liagora distenta (Mertens ex Roth) J.V.Lamouroux, 1816 (synonym)
70. Species Sphaerococcus distichus J.Agardh, 1837 accepted as Gracilaria disticha (J.Agardh) J.Agardh, 1852
71. Species Sphaerococcus divaricatus C.Agardh, 1817 accepted as Hypnea divaricata (C.Agardh) Greville, 1830
72. Species Sphaerococcus divaricatus C.Agardh, 1827 accepted as Hypnea musciformis (Wulfen) J.V.Lamouroux, 1813
73. Species Sphaerococcus divergens C.Agardh, 1822 accepted as Gracilaria divergens (C.Agardh) J.Agardh, 1847
74. Species Sphaerococcus domingensis Kützing, 1869 accepted as Gracilaria domingensis (Kützing) Sonder ex Dickie, 1874
75. Species Sphaerococcus dumosus (Harvey & Bailey) Kützing, 1869 accepted as Gracilaria dumosa Harvey & Bailey, 1862
76. Species Sphaerococcus durus C.Agardh, 1822 accepted as Gracilaria dura (C.Agardh) J.Agardh, 1842
77. Species Sphaerococcus erectus Greville, 1828 accepted as Cordylecladia erecta (Greville) J.Agardh, 1852
78. Species Sphaerococcus erinaceus (Turner) C.Agardh, 1817 accepted as Nothogenia erinacea (Turner) P.G.Parkinson, 1983 (synonym)
79. Species Sphaerococcus fabricianus (Lyngbye) Sprengel, 1827 accepted as Membranoptera fabriciana (Lyngbye) M.J.Wynne & G.W.Saunders, 2012 (synonym)
80. Species Sphaerococcus fastigiatus (Linnaeus) Wahlenberg, 1826 accepted as Furcellaria lumbricalis (Hudson) J.V.Lamouroux, 1813
81. Species Sphaerococcus filiformis J.Agardh, 1852 accepted as Ochtodes secundiramea (Montagne) M.A.Howe, 1920 (synonym)
82. Species Sphaerococcus fimbriatus C.Agardh, 1822 accepted as Calliblepharis fimbriata (Greville) Kützing, 1843
83. Species Sphaerococcus flabellifolius Bory de Saint-Vincent, 1828 accepted as Rhodymenia flabellifolia (Bory de Saint-Vincent) Montagne, 1846
84. Species Sphaerococcus flaccidus Suhr, 1834 accepted as Delisea flaccida (Suhr) Papenfuss, 1940
85. Species Sphaerococcus fragilis C.Agardh, 1822 accepted as Trematocarpus fragilis (C.Agardh) De Toni, 1900
86. Species Sphaerococcus furcellatus C.Agardh, 1822 accepted as Asterfilopsis furcellata (C.Agardh) M.S.Calderon & S.M.Boo, 2016
87. Species Sphaerococcus gaudichaudii Bory, 1828 accepted as Callophyllis variegata (Bory) Kützing, 1843
88. Species Sphaerococcus gelatinus (Esper) C.Agardh, 1822 accepted as Betaphycus gelatinus (Esper) Doty ex P.C.Silva, 1996
89. Species Sphaerococcus gelidium J.Agardh, 1841 accepted as Meristotheca gelidium (J.Agardh) E.J.Faye & M.Masuda, 2004
90. Species Sphaerococcus griffithsiae (Turner) C.Agardh, 1817 accepted as Gymnogongrus griffithsiae (Turner) C.Martius, 1833
91. Species Sphaerococcus helminthochorton (Schwendimann) C.Agardh accepted as Alsidium helminthochorton (Schwendimann) Kützing, 1843
92. Species Sphaerococcus heringii Kützing, 1849 accepted as Gracilaria aculeata (Hering) Papenfuss, 1967
93. Species Sphaerococcus hippuroides (Lyngbye) C.Agardh, 1824 accepted as Dictyosiphon foeniculaceus (Hudson) Greville, 1830
94. Species Sphaerococcus horridus C.Agardh, 1822 accepted as Endosiphonia horrida (C.Agardh) P.C.Silva, 1996
95. Species Sphaerococcus interruptus Greville, 1829 accepted as Coccotylus truncatus (Pallas) M.J.Wynne & J.N.Heine, 1992
96. Species Sphaerococcus intricatus C.Agardh, 1822 accepted as Ceratodictyon intricatum (C.Agardh) R.E.Norris, 1987 (synonym)
97. Species Sphaerococcus isiformis C.Agardh, 1822 accepted as Eucheumatopsis isiformis (C.Agardh) Núñez-Resendiz, Dreckmann & Sentíes, 2019
98. Species Sphaerococcus labillardierei (Mertens ex Turner) C.Agardh, 1822 accepted as Phacelocarpus peperocarpos (Poiret) M.J.Wynne, Ardré & P.C.Silva, 1993
99. Species Sphaerococcus laciniatus (Hudson) Lyngbye, 1819 accepted as Metacallophyllis laciniata (Hudson) A.Vergés & L.Le Gall, 2017
100. Species Sphaerococcus lacinulatus Kützing, 1868 accepted as Gracilaria flabelliformis (P.Crouan & H.Crouan) Fredericq & Gurgel, 2004 (synonym)
101. Species Sphaerococcus lacinulatus (Vahl) Bory de Saint-Vincent, 1834 accepted as Gracilaria isabellana Gurgel, Fredericq & J.N.Norris, 2004 (synonym)
102. Species Sphaerococcus lactuca C.Agardh, 1822 accepted as Cryptonemia lomation (Bertoloni) J.Agardh, 1851
103. Species Sphaerococcus lambertii (Turner) C.Agardh, 1822 accepted as Callophyllis lambertii (Turner) Kützing, 1849
104. Species Sphaerococcus lemania Kützing, 1868 accepted as Hydropuntia edulis (S.G.Gmelin) Gurgel & Fredericq, 2004
105. Species Sphaerococcus lessonii Bory de Saint-Vincent, 1828 accepted as Gigartina lessonii (Bory) J.Agardh, 1851 (synonym)
106. Species Sphaerococcus lichenoides C.Agardh, 1817 accepted as Hydropuntia edulis (S.G.Gmelin) Gurgel & Fredericq, 2004
107. Species Sphaerococcus linearis C.Agardh, 1817 accepted as Ahnfeltiopsis linearis (C.Agardh) P.C.Silva & DeCew, 1992
108. Species Sphaerococcus lividus (Turner) C.Agardh, 1822 accepted as Sarcothalia livida (Turner) Hommersand, 1993 (synonym)
109. Species Sphaerococcus mammillosus (Goodenough & Woodward) C.Agardh, 1817 accepted as Mastocarpus stellatus (Stackhouse) Guiry, 1984
110. Species Sphaerococcus maximilianii C.Martius, 1828 accepted as Osmundaria obtusiloba (C.Agardh) R.E.Norris, 1991
111. Species Sphaerococcus membranifolius (Goodenough & Woodward) C.Agardh, 1817 accepted as Phyllophora pseudoceranoïdes (S.G.Gmelin) Newroth & A.R.A.Taylor ex P.S.Dixon & L.M.Irvine, 1977 (synonym)
112. Species Sphaerococcus mexicanus Kützing, 1868 accepted as Gracilaria mexicana (Kützing) P.Crouan & H.Crouan, 1878
113. Species Sphaerococcus microcarpus C.Agardh, 1822 accepted as Polyopes constrictus (Turner) J.Agardh, 1851
114. Species Sphaerococcus miniatus Sprengel, 1827 (unaccepted)
115. Species Sphaerococcus mirabilis C.Agardh, 1820 (unaccepted)
116. Species Sphaerococcus musciformis (Wulfen) C.Agardh, 1822 (unaccepted)
117. Species Sphaerococcus nanus C.Agardh (unaccepted)
118. Species Sphaerococcus nigrescens (C.Agardh) Kützing, 1849 (unaccepted)
119. Species Sphaerococcus nodifer Hering, 1841 (unaccepted)
120. Species Sphaerococcus norvegicus (Gunnerus) C.Agardh, 1817 (unaccepted, synonym)
121. Species Sphaerococcus obtusatus (Sonder) Kützing, 1849 (unaccepted)
122. Species Sphaerococcus obtusus (Hudson) Wahlenberg, 1826 (unaccepted)
123. Species Sphaerococcus obtusus Kützing, 1869 (unaccepted)
124. Species Sphaerococcus oppositifolius C.Agardh, 1822 (unaccepted)
125. Species Sphaerococcus osmunda (S.G.Gmelin) Stackhouse, 1797 (unaccepted, synonym)
126. Species Sphaerococcus palmatus (Linnaeus) Wahlenberg, 1826 (unaccepted)
127. Species Sphaerococcus palmatus S.F.Gray, 1821 (unaccepted, synonym)
128. Species Sphaerococcus palmetta (Stackhouse) C.Agardh, 1817 (unaccepted)
129. Species Sphaerococcus papillatus C.Agardh, 1821 (unaccepted)
130. Species Sphaerococcus pectinatus Montagne, 1838 (unaccepted, synonym)
131. Species Sphaerococcus pedicellatus C.Agardh, 1822 (unaccepted, synonym)
132. Species Sphaerococcus pedunculatus (Hudson) Stackhouse, 1797 (unaccepted, synonym)
133. Species Sphaerococcus pinastroides Stackhouse, 1797 (unaccepted)
134. Species Sphaerococcus pinnatifidus (Hudson) Stackhouse, 1797 (unaccepted, synonym)
135. Species Sphaerococcus plicatus (Hudson) C.Agardh, 1817 (unaccepted)
136. Species Sphaerococcus plumosus (Linnaeus) Wahlenberg, 1826 (unaccepted)
137. Species Sphaerococcus polycarpus Greville, 1828 (unaccepted, synonym)
138. Species Sphaerococcus pristoides (Turner) C.Agardh, 1822 (unaccepted)
139. Species Sphaerococcus purpurascens (Hudson) C.Agardh, 1817 (unaccepted)
140. Species Sphaerococcus radicans Bory de Saint-Vincent, 1834 (unaccepted, synonym)
141. Species Sphaerococcus radula (Esper) C.Agardh, 1822 (unaccepted)
142. Species Sphaerococcus radulus (Esper) (unaccepted)
143. Species Sphaerococcus ramentaceus (Linnaeus) Kützing, 1843 (unaccepted, synonym)
144. Species Sphaerococcus ramulosus Martius, 1828 (unaccepted, synonym)
145. Species Sphaerococcus rangiferinus Kützing, 1849 (unaccepted)
146. Species Sphaerococcus repens C.Agardh, 1822 (unaccepted)
147. Species Sphaerococcus revolutus C.Agardh, 1822 (unaccepted)
148. Species Sphaerococcus rigens C.Agardh, 1822 (unaccepted)
149. Species Sphaerococcus rigidus C.Agardh, 1822 (unaccepted)
150. Species Sphaerococcus salicornia C.Agardh, 1820 (unaccepted)
151. Species Sphaerococcus sanguineus (Hudson) Wahlenberg, 1826 (unaccepted)
152. Species Sphaerococcus sarniensis (Mertens) C.Agardh, 1817 (unaccepted)
153. Species Sphaerococcus schousboei J.Agardh, 1841 (unaccepted)
154. Species Sphaerococcus scutellatus Hering, 1841 (unaccepted)
155. Species Sphaerococcus secundus C.Agardh, 1827 (unaccepted, synonym)
156. Species Sphaerococcus seminervis C.Agardh, 1821 (unaccepted)
157. Species Sphaerococcus serra J.Agardh, 1841 (unaccepted)
158. Species Sphaerococcus setaceus Kützing, 1868 (unaccepted, synonym)
159. Species Sphaerococcus sinuosus (Goodenough & Woodward) C.Agardh, 1817 (unaccepted)
160. Species Sphaerococcus soboliferus (M.Vahl) Kützing, 1843 (unaccepted)
161. Species Sphaerococcus sonderii Kützing, 1849 (unaccepted, synonym)
162. Species Sphaerococcus spermophorus (Linnaeus) C.Agardh, 1822 (unaccepted)
163. Species Sphaerococcus spinellus C.Agardh, 1822 (unaccepted)
164. Species Sphaerococcus spinescens Kützing, 1868 (unaccepted, synonym)
165. Species Sphaerococcus spinosus C.Agardh, 1822 (unaccepted)
166. Species Sphaerococcus spinulosus Kützing, 1868 (unaccepted, synonym)
167. Species Sphaerococcus sternbergii C.Agardh, 1822 (unaccepted, synonym)
168. Species Sphaerococcus stiriatus (Turner) C.Agardh, 1817 (unaccepted, synonym)
169. Species Sphaerococcus subfuscus (Woodward) C.Agardh, 1817 (unaccepted)
170. Species Sphaerococcus subulatus C.Agardh, 1822 (unaccepted)
171. Species Sphaerococcus textorii Suringar, 1868 (unaccepted)
172. Species Sphaerococcus torreyi C.Agardh, 1822 (unaccepted, synonym)
173. Species Sphaerococcus tripinnatus (Hering) Kützing, 1849 (unaccepted)
174. Species Sphaerococcus tuberculosus Hampe ex Kützing, 1849 (unaccepted)
175. Species Sphaerococcus usneoides C.Agardh, 1822 (unaccepted)
176. Species Sphaerococcus ustulatus (Mertens ex Turner) C.Agardh, 1828 (unaccepted)
177. Species Sphaerococcus vermicularis C.Agardh, 1817 (unaccepted)
178. Species Sphaerococcus verruculosus (Bertoloni) C.Agardh, 1822 (unaccepted)
179. Species Sphaerococcus vieillardii Kützing, 1863 (unaccepted, synonym)
180. Species Sphaerococcus viscidus (Forsskål) C.Agardh, 1817 (unaccepted, synonym)
181. Species Sphaerococcus volans C.Agardh, 1821 (unaccepted)
182. Species Sphaerococcus wiggii (Turner) C.Agardh, 1817 (unaccepted, synonym)
183. Species Sphaerococcus appendiculatus Schousboe (uncertain)
184. Species Sphaerococcus bifidus Stackhouse, 1797 (uncertain, uncertain taxonomic status subjected to verification)
185. Species Sphaerococcus dendroides Kützing (uncertain)
186. Species Sphaerococcus glandulosus Schousboe (uncertain)
187. Species Sphaerococcus micrococcus Martius, 1833 (uncertain, uncertain taxonomic status subjected to verification)
188. Species Sphaerococcus platyphyllus Kützing, 1843 (uncertain)
189. Species Sphaerococcus poepigii Martens, 1912 (uncertain, uncertain taxonomic status subjected to verification)

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