Squalodontidae closely related to the South Asian river dolphin ("Platanista gangetica"). The genus "Squalodon" was named by French naturalist Jean-Pierre Sylvestre de Grateloup in 1840 based on a jaw fragment he thought belonged to a reptile. Fossils discovered later, nevertheless, showed that this was a toothed whale. In extant odontocetes, however, the dentition is atavistic with all teeth reduced to simple, undifferentiated conical shapes. In squalodonts the teeth resemble those of the archaic whales, Archaeoceti, with conical incisors anteriorly and low-crowned, serrated teeth posteriorly. Squalodontidae Squalodontidae or the shark-toothed dolphins is an extinct family of large toothed whales who had long
Catacroptera dark brown underside. The larvae feed on "Justicia protracta", "Barleria stuhlmanni", "Ruellia cordata", "Asystasia gangetica", "Barleria opaca", "Ruellia togoensis", "Chaetacanthus setiger", "Asclepias" and "Phaulopsis" species. Catacroptera Catacroptera is a monotypic butterfly genus of the subfamily Nymphalinae in the family Nymphalidae found in sub-Saharan Africa. The habitat consists of grassland and savanna. Adults are on wing year round, but from September to April in cooler areas. The single species, Catacroptera cloanthe, the pirate, has a wingspan of 50 to 63 mm. Its dorsal colour is orange with rows of dark bands in the forewing and blue spots surrounded by darker brown