巨颚水虱科（学名：Gnathiidae）为等足目的一个科。
下级分类
本科包括以下属：
- Afrignathia Hadfield & Smit, 2008
- Bathygnathia Dollfus, 1901
- Bythognathia Camp, 1988
- Caecognathia Dollfus, 1901
- Elaphognathia Monod, 1926
- Euneognathia Stebbing, 1893
- Gibbagnathia Cohen & Poore, 1994
- 巨颚水虱属 Gnathia Leach, 1814
- Monodgnathia Cohen & Poore, 1994
- Paragnathia Omer-Cooper & Omer-Cooper, 1916
- Prognathia Hu & Tao, 1996
- Tenerognathia Tanaka, 2005
- Thaumastognathia Monod, 1926
- Thaumastognathia bicorniger Ota, Kurashima & Horie, 2022[1]
- Thaumastognathia diceros Monod, 1926
- Thaumastognathia metaphone Cohen & Poore, 1994
- Thaumastognathia orectognathus Cohen & Poore, 1994
- Thaumastognathia tanseimaruae Shimomura & Tanaka, 2008
- Thaumastognathia wasmannia Cohen & Poore, 1994
参考文献
