䲟科是辐鳍鱼纲鲈形目的一个科。䲟鱼的头顶上有一个吸盘，用来吸附在其它大鱼身上以移动位置。

䲟鱼科其下分4个属，如下：

The remoras (pronounced /rəˈmɔːrə/ or /ˈrɛmərə/), sometimes called suckerfish, are a family (Echeneidae) of ray-finned fish in the order Perciformes. They grow to 7–75 cm (2.8 in–2 ft 5.5 in) long, and their distinctive first dorsal fins take the form of a modified oval, sucker-like organ with slat-like structures that open and close to create suction and take a firm hold against the skin of larger marine animals. By sliding backward, the remora can increase the suction, or it can release itself by swimming forward. Remoras sometimes attach to small boats. They swim well on their own, with a sinuous, or curved, motion.