Parauchenoglanis buettikoferi (Popta, 1913)

Geerinckx, T., Adriaens, D., Teugels, G. G. & Verraes, W., 2004, A systematic revision of the African catfish genus Parauchenoglanis (Siluriformes: Claroteidae), Journal of Natural History 38 (6), pp. 775-803 : 800

Parauchenoglanis buettikoferi (Popta, 1913)

(figure 8g)

Auchenoglanis büttikoferi Popta, 1913 .

Parauchenoglanis buettikoferi: Teugels et al., 1991 .

Diagnosis. Head height greater than preorbital head length. Barbels rather short, with maxillary barbel just reaching base of pectoral fin spine, external mandibular barbel not reaching beyond tip of pectoral fin spine. Anterior margin of pectoral fin spine coarsely serrated over its whole length. Caudal peduncle long (as in P. balayi ), with its minimum height slightly greater than horizontal distance between bases of adipose and caudal fin.

Description. Based on holotype. See also table 4. Body relatively low and slender. Both margins of pectoral fin spine coarsely serrated. Humeral process narrow and pointed, with width at base being much smaller than length of process. Seven pectoral fin rays.

The coloration of the holotype of P. buettikoferi was described by Popta (1913) when it had already been preserved in alcohol for some time. She described the colour as violet brown. Afterwards the specimen was stained for bone, such that it is now impossible to perceive many details of the colour pattern. An examination of the specimen reveals the apparent presence of about four large spots on the flank.

Distribution (figure 10). The holotype of Parauchenoglanis buettikoferi was collected in the Warri River in the Western Niger Delta ( Nigeria). No other specimens seem to have been subsequently collected.

Maximum size recorded. The maximum size recorded is 84 mm SL (only specimen).

Material examined. One specimen. NNM 8860 (holotype): Warri River (Niger Delta, Nigeria); 5°34∞N, 5°55∞E; 84 mm SL .