Coelophrys

Coelophrys batfishes are characterised by having a rather box-like head that is not vertically flattened, a very short caudal peduncle and a large mouth. The cavity on the forehead that the illicium folds into is very large and spacious. The esca has 2 lobes to the side and a middle part which is slender and leaf-shaped. There is no skin over the eye. The pelvic fin does not have an elbow. There are no teeth on the roof of the mouth and very few, or none, on the tongue. The scales are simple tubercles and the lateral line is divided. There is no spine on the preoperculum.^[9] These are small fishes: The largest species in the genus is C. micropa, which has a maximum published total length of 8.4 cm (3.3 in).^[6]

Coelophrys batfishes are found in the Western Pacific Ocean in deep water between 423^[10] and at least 1400m.^[11] These batfishes, as adults, have a morphology similar to the pelagic larvae of other anglerfish species; this, along with the reduced pectoral and pelvic fins, implies that these are pelagic rather than demersal fishes.^[9]