倭太阳鱼科为辐鳍鱼纲鲈形目的其中一个科。

倭太阳鱼科其下仅有一属：

• 小日鲈属（Elassoma）
  • 阿拉巴马小日鲈（Elassoma alabamae）
  • 博氏小日鲈（Elassoma boehlkei）
  • 黑斑小日鲈（Elassoma evergladei）
  • 奥氏小日鲈（Elassoma okatie）
  • 小日鲈（Elassoma okefenokee）
  • 横带小日鲈（Elassoma zonata）

Elassoma is a genus of freshwater fish, the only member of family Elassomatidae and suborder Elassomatoidei of order Perciformes. The type species is E. zonatum, the banded pygmy sunfish. The Elassomatidae are known collectively as pygmy sunfishes, but are not true sunfishes, which are members of family Centrarchidae. Some researchers believe they are related to sticklebacks and pipefishes (order Syngnathiformes) rather than Perciformes.