Arthritica is a genus of bivalves belonging to the family Lasaeidae.

The species of this genus are found in Australia and New Zealand.

Species:

• Arthritica ambotruncata Laws, 1944
• Arthritica bifurca (Webster, 1908)
• Arthritica crassiformis Powell, 1933
• Arthritica crassitesta Laws, 1950
• Arthritica dispar Laws, 1940
• Arthritica elongata Laws, 1936
• Arthritica finlayi Laws, 1950
• Arthritica helmsi (Hedley, 1915)
• Arthritica hulmei Ponder, 1965
• Arthritica japonica Lützen & Takahashi, 2003
• Arthritica perfragilis Laws, 1950
• Arthritica reikoae (Suzuki & Kosuge, 2010)
• Arthritica semen (Menke, 1843)
• Arthritica whitechurchi (Turton, 1932)

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