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The West African slender-snouted crocodile (Mecistops cataphractus), or slender-snouted crocodile, is a critically endangered species of African crocodile. It is one of five species of crocodile in Africa, the other four being the Central African slender-snouted, Nile, West African and dwarf crocodiles.
The slender-snouted crocodile (M. cataphractus) was thought to be distributed across west Africa and into central Africa but the central African species has been separated as the Central African slender-snouted crocodile (M. leptorhynchus) based on studies in 2014 and 2018 that indicated that both were distinct species. The name cataphractus is retained for the West African species as that species was described first based on specimens from western Africa. The two species diverged about 6.5–7.5 mya, living in different river drainage zones that were geographically separated from each other by the Cameroon Line.
As with its relative, the West African slender-snouted crocodile has a very long, slender snout that it uses to catch fish and small aquatic invertebrates. As with all crocodilians, larger animals may feed opportunistically on larger prey if it becomes available. They are relatively medium-sized, but large males can exceed several other species of crocodilians in size. Three individuals measuring 2.31 to 2.62 m (7 ft 7 in – 8 ft 7 in) and weighing 50–95 kg (110–209 lb) had a bite force in the range of 1,704–2,447 N (383–550 lbf). Adult males typically reach 3 to 4 m (9 ft 10 in – 13 ft 1 in) in length. Large males can reportedly grow up to 4.5 m (15 ft) in length. They generally weigh between 125 and 325 kg (276 and 717 lb).[13] The body mass of the largest males have been estimated to reach up to 667 kg (1,470 lb).
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