Figure 7 from: Slater G, Scheel D, Kolokotronis S, Potter C, Rotstein D, Tsangaras K, Greenwood A, Helgen K (2014) Biogeography and taxonomy of extinct and endangered monk seals illuminated by ancient DNA and skull morphology. ZooKeys 409: 1-33. https://doi.org/10.3897/zookeys.409.6244

Figure 7 - Dorsal view of rostra of a Monachus monachus b Neomonachus schauinslandi, and c Neomonachus tropicalis. Monachus exhibits a well-developed antorbital process on the maxilla, immediately inferior to the fronto-maxillary suture. The process is reduced or absent in Neomonachus. The nasals of Monachus are short and triangular, tapering smoothly posteriorly to produce a point at their union. The nasals of Neomonachus are longer and do not taper smoothly.