Figure 2 in Evidence for a close phylogenetic relationship between the teleost orders Tetraodontiformes and Lophiiformes based on an analysis of soft anatomy

Figure 2. - The restricted gill opening (black arrow) in a few lophiiform and tetraodontiform species. A: Lophius piscatorius (Lophiiformes, Lophiidae); B: Microlophichthys micro- lophus (Lophiiformes, Oneirodidae); C: Tetraodon sp., (Tetraodontiformes, Tetraodontidae); D: Mola mola (Tetraodontiformes, Molidae). All drawings from F. Dejouannet, excepted drawing B modified after Trewavas and Regan (1932).