Potamosilurus Marceniuk & Menezes, 2007

MP 99, BI 1, ML 99

(Figs 1–3, 38H and 53)

Type species: Hemipimelodus macrorhynchus Weber, 1913 .

Diagnosis

Lateral ethmoid as main component of bony bridge formed by lateral ethmoid and frontal (15, 1> 0); accessory tooth plates absent (58, 1> 0); contact face for articulation of transcapular process with basioccipital large and depressed (85, 0> 1).

Ambiguous optimization: Mesethmoid medial notch indistinct, obscured by bone deposition (1, 1> 2); mesethmoid median portion moderately wide (2, 2> 1); dorsal crest of hyomandibula short and high (141, 0> 1); adipose-fin base moderately long (222, 1> 2).

Included species

Potamosilurus coatesi Kailola, 1990

Potamosilurus macrorhynchus Weber, 1913

Potamosilurus robertsi Kailola, 1990 * sedis mutabilis Potamosilurus velutinus Weber, 1907 .

Habitat and distribution: Freshwater, southern New Guinea (Fig. 38).

Remarks

Potamosilurus is recognized as a valid genus, as defined by Marceniuk and Menezes (2007) excluding Papuarius latirostris, which is assigned to a new genus based on the results of the total-evidence analysis.