F in A systematic revision of the African catfish genus Parauchenoglanis (Siluriformes: Claroteidae)

F. 6. Plot of the second versus the third principal component taken from a principal components analysis of 42 log-transformed biometric data for 44 specimens from the area between the Ouémé River (Benin) and the Wouri River (West Cameroon). (1) P. guttatus; (2) syntypes of P. guttatus; (+) syntypes of P. ahli; ($) holotype of P. buettikoferi.