红口仿鲸科为辐鳍鱼纲鲸头鱼目的其中一科。

红口仿鲸科其下仅有一属：

• 龙氏鲸头鱼属（Rondeletia）
  • 双色龙氏鲸头鱼（Rondeletia bicolor）
  • 网肩龙氏鱼（Rondeletia loricata）：又称网肩龙氏鲸头鱼。

The redmouth whalefishes are two species of deep-sea whalefishes in the genus Rondeletia, the only genus in the family Rondeletiidae. They are apparently close to the velvet whalefish (Barbourisia rufa), and apparently also to the gibberfishes (Gibberichthyidae). The latter and the Rondeletiidae are the only known living fishes which have the mysterious Tominaga's organ.