Brustiarius Herre, 1935

Marceniuk, Alexandre Pires, Oliveira, Claudio & Ferraris Jr, Carl J., 2024, A new classification of the family Ariidae (Osteichthyes: Ostariophysi: Siluriformes) based on combined analyses of morphological and molecular data, Zoological Journal of the Linnean Society 200 (2), pp. 426-476 : 465

Brustiarius Herre, 1935

MP 100, BI 1, ML 100

( Figs 1–3 , 38A , 41 )

Type species: Arius nox Herre, 1935 .

Diagnosis

Accessory tooth plates small, oval to rounded (60, 0> 1); lateral and mesial portions of premaxilla of different sizes (121, 0> 1); metapterygoid anterior process acute (138, 1> 0).

Ambiguous optimization: Posterior cranial fontanel small (27, 1> 0); vomer lateral processes very narrow (53, 0> 1); maxilla lateral and mesial margins considerably closer to each other proximally, distally narrow and pointed (102, 2> 3); articulation of autopalatine with lateral ethmoid in middle of bone (111, 2> 1); first external branchiostegal ray narrow proximally and broad distally (147, 1> 0); posterior ceratohyal long (153, 0> 1).

Included species

Brustiarius nox Herre, 1935

Brustiarius solidus Herre, 1935

Brustiarius utarus Kailola, 1990 .

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

Remarks

As indicated by the total-evidence analysis, Brustiarius follows the definition and species composition proposed in previous morphological studies ( Kailola 2004, Marceniuk and Menezes 2007, Marceniuk et al. 2012), with the inclusion of Brustiarius utarus sensu Betancur-R. (2009). The species in Brustiarius were treated as a species flock, based on the shallow genetic divergences found by Betancur-R. (2009).

Figures

Figure 1. MP analysis.Subfamilies (SF) Galeichthyinae (pink), Bagreinae (bright blue), and Ariinae (dark blue). Tribe (T) Ariini (blue), Cathopsini (orange), Genidentini tribe nov. (brown), and Sciadeini tribe nov. (light green).Subtribe (ST) Ariina (light blue) and Doiichthyina (green). Incertae sedis taxa (IS) (red). Numbers over branches correspond to the bootstrap support.

Figure 2. ML analysis. Subfamilies (SF) Galeichthyinae (pink), Bagreinae (bright blue), and Ariinae (dark blue). Tribe (T) Ariini (blue), Cathopsini (orange), Genidentini tribe nov. (brown), and Sciadeini tribe nov. (light green). Subtribe (ST) Ariina (light blue) and Doiichthyina (green). Incertae sedis taxa (IS) (red). Numbers over branches correspond to the bootstrap support.

Figure 3. BI analysis.Subfamilies (SF) Galeichthyinae (pink), Bagreinae (bright blue), and Ariinae (dark blue). Tribe (T) Ariini (blue), Cathopsini (orange), Genidentini tribe nov. (brown), and Sciadeini tribe nov. (light green).Subtribe (ST) Ariina (light blue) and Doiichthyina (green). Incertae sedis taxa (IS) (red). Numbers over branches correspond to the bootstrap support.

Figure 38. Representative skulls, in dorsal view, and distribution of the subtribe Doiichthyina.A, Brustiarius nox, AUM 47488. B, Paracinetodus carinatus, AUM 47550.C, Cochlefelis spatula, AUM 50296. D, Nedystoma dayi, AUM 47500. E, Aceroichthys dioctes, AUM 47507. F, Pachyula crassilabris, AUM 47509. G, Pararius proximus, AUM 47486.H, Potamosilurus velutinus, AUM 47489.* marine, ** brackish waters, *** freshwater.

Figure 41. Brustiarius nox, New Guinea, photograph by Ricardo Betancur-R., type species of the genus.