Ariopsis Gill, 1861

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 : 443-445

Ariopsis Gill, 1861

MP 100, BI 1, ML 99

( Figs 1–3 , 16A , 17 )

Type species: Arius milberti Valenciennes, 1840 .

Diagnosis (all of ambiguous optimization)

444 • Marceniuk et al.

Third basibranchial chalice shaped (168, 0> 1), reversed in Ariopsis guatemalensis ; Müllerian ramus bone blade evident only in basal third (206, 2> 1), state 2 in Ariopsis canteri .

Included species

Ariopsis assimilis Günther, 1864 *

Ariopsis canteri Acero P. , Betancur-R. & Marceniuk, 2017 Ariopsis felis Linnaeus, 1766

Ariopsis gilberti Jordan & Williams, 1895 *

Ariopsis guatemalensis Günther, 1864

Ariopsis jimenezi Marceniuk et al., 2017 *

Ariopsis seemanni Günther, 1864

Ariopsis simonsi Starks, 1906 .

Habitat and distribution: Freshwater, brackish, and marine waters, North America, Central America and northern South America ( Fig. 16 ).

Remarks

The total-evidence analysis corroborates the monophyly of Ariopsis and the relationships established by molecular data (Betancur-R. et al. 2007, Betancur-R. 2009), with the same species composition as in the recent revision of the genus ( Marceniuk et al. 2017b). The overall morphological similarity of Sciades and Ariopsis is expressed by the synonymy of the genera in previous morphological analyses ( Marceniuk and Menezes 2007, Marceniuk et al. 2012).

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 16. Representative skulls, in dorsal view, and distribution of Sciadeini tribe nov. A, Ariopsis felis, http://catfishbone.acnatsci.org. B, Potamarius izabalensis, UMMZ 177252. C, Sciades parkeri, MPEG APM 147. * marine, ** brackish waters, *** freshwater.

Figure 17. Ariopsis felis, MNHN B-0593 (senior synonym of Arius milberti), north-western Atlantic, type species of the genus.