• Halicarcinus White, 1846
• Halicarcinus afecundus Lucas, 1981 accepted as Micas afecundus (Lucas, 1981)
• Halicarcinus angelicus Holthuis, 1968 accepted as Amarinus angelicus (Holthuis, 1968)
• Halicarcinus bedfordi Montgomery, 1931 accepted as Lucascinus bedfordi (Montgomery, 1931)
• Halicarcinus cookii (Filhol, 1885)
• Halicarcinus coralicola (Rathbun, 1909) accepted as Lucascinus coralicola (Rathbun, 1909)
• Halicarcinus filholi (De Man, 1888) accepted as Micas filholi (De Man, 1888)
• Halicarcinus ginowan Naruse & Komai, 2009 accepted as Culexisoma ginowan (Naruse & Komai, 2009)
• Halicarcinus hondai (Takeda & Miyake, 1971) accepted as Rhynchoplax hondai Takeda & Miyake, 1971
• Halicarcinus Huttoni Filhol, 1885 accepted as Halicarcinus quoyi (H. Milne Edwards, 1853)
• Halicarcinus innominata Richardson, 1949 accepted as Halicarcinus quoyi (H. Milne Edwards, 1853)
• Halicarcinus innominatus Richardson, 1949 accepted as Halicarcinus innominata Richardson, 1949 accepted as Halicarcinus quoyi (H. Milne Edwards, 1853)
• Halicarcinus keijibabai (Takeda & Miyake, 1971) accepted as Lucascinus keijibabai (Takeda & Miyake, 1971)
• Halicarcinus krefftii (Hess, 1865) accepted as Halicarcinus ovatus Stimpson, 1858
• Halicarcinus leachi Guérin, 1832 accepted as Halicarcinus planatus (Fabricius, 1775)
• Halicarcinus longipes Yang & Sun, 1998 accepted as Stimpsoplax longipes (Yang & Sun, 1998)
• Halicarcinus lucasi Richer de Forges, 1993 accepted as Micas lucasi (Richer de Forges, 1993)
• Halicarcinus messor (Stimpson, 1858) accepted as Rhynchoplax messor Stimpson, 1858
• Halicarcinus minutus (A. Milne-Edwards, 1873) accepted as Micas minutus (A. Milne-Edwards, 1873)
• Halicarcinus nuytsi Hale, 1927 accepted as Halicarcinides nuytsi (Hale, 1927)
• Halicarcinus orientalis Sakai, 1932 accepted as Neohymenicus orientalis (Sakai, 1932)
• Halicarcinus ovatus Stimpson, 1858
• Halicarcinus paralacustris Lucas, 1970 accepted as Amarinus paralacustris (Lucas, 1970)
• Halicarcinus planatus (Fabricius, 1775)
• Halicarcinus popeius Gašparič, Hyžný & Šoster, 2024 †
• Halicarcinus pubescens Dana, 1851 accepted as Halicarcinus planatus (Fabricius, 1775)
• Halicarcinus quoyi (H. Milne Edwards, 1853)
• Halicarcinus rostratus (Haswell, 1881) accepted as Nasutoplax rostrata (Haswell, 1881)
• Halicarcinus septentrionalis Yokoya, 1928 accepted as Lucascinus coralicola (Rathbun, 1909)
• Halicarcinus setirostris (Stimpson, 1858) accepted as Stimpsoplax setirostris (Stimpson, 1858)
• Halicarcinus tongi Melrose, 1975
• Halicarcinus unidentatus Yang & Sun, 1998 accepted as Stimpsoplax unidentata (Yang & Sun, 1998)
• Halicarcinus varius (Dana, 1851)
• Halicarcinus whitei (Miers, 1876)
• Halicarcinus wolterecki Balss, 1934 accepted as Amarinus wolterecki (Balss, 1934)
• Halicarcinus yangi Shen, 1932 accepted as Stimpsoplax setirostris (Stimpson, 1858)