Taxonomy of Auchenoglanis Günther 1865 (Siluriformes: Auchenoglanididae) Author Retzer, Michael E. text Zootaxa 2010 2010-10-25 2655 1 25 51 https://biotaxa.org/Zootaxa/article/view/zootaxa.2655.1.2 journal article 10.11646/zootaxa.2655.1.2 1175-5326 5303955 Key to the Species of Auchenoglanis 1. Origin of adipose fin over anal-fin origin ....................................................................................................... A . sacchii -. Origin of adipose fin anterior to anal-fin origin .......................................................................................................... 2 2. Anterior margins of nuchal plates strongly curved ( Fig. 1b ); premaxillary tooth patches round ( Fig. 2b ) ................... ................................................................................................................................................................... A . biscutatus -. Anterior margins of nuchal plates straight to slightly curved ( Fig. 1a ); premaxillary tooth patches not round ( Fig. 2a, c–e )................................................................................................................................................................................ 3 3. Small irregularly shaped spots of various size and intensity on body and adipose fin of adult; large adult has six vertical pairs of small but evenly spaced prominent spots beginning under dorsal fin and ending on caudal peduncle just above lateral line ................................................................................................................................... A . tanganicanus -. Medium-sized spots in regular pattern or no spots on body and adipose fin of adult; no paired vertical spots on body of large adult ................................................................................................................................................................. 4 4. Body and fins of adult with medium-sized spots in a reticulated pattern; %MxBL/HL> 53.2 ....................... A . wittei -. Body and fins of adult not with medium-sized spots in a reticulated pattern; %MxBL/HL <53.2 ............................ 5 5. Premaxillary tooth patches triangular or tear-shaped ( Fig. 2d–e ) ............................................................................... 6 -. Premaxillary tooth patches oblong-oval ( Fig. 2a ) ........................................................................................................ 7 6. Premaxillary tooth patches tear-shaped ( Fig. 2d ); adult with three horizontal series of dark spots on body and intense dark spots on fins; lips thin ........................................................................................................................... A . senegali -. Premaxillary tooth patches triangular ( Fig. 2c ); adult without three horizontal series of dark spots and intense dark spots on fins; lips thick ........................................................................................................................... A . tchadiensis 7. External and internal mandibular barbels dark; adult body spotted .......................................................... A . acuticeps -. External and internal mandibular barbels white; adult body plain ........................................................ A . occidentalis