Occidentarius Betancur-R. & Acero P., 2007

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 : 435-436

publication ID	https://doi.org/10.1093/zoolinnean/zlad078
publication LSID	lsid:zoobank.org:pub:5D6C7EBF-E568-4100-9364-2DD357003878
DOI	https://doi.org/10.5281/zenodo.11282591
persistent identifier	https://treatment.plazi.org/id/03F32B77-FFEE-FFAA-0EDF-F9ECFED2489B
treatment provided by	Plazi (2024-05-22 07:02:05, last updated 2024-11-26 01:27:52)
scientific name	Occidentarius Betancur-R. & Acero P., 2007
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Occidentarius Betancur-R. & Acero P., 2007 View in CoL View at ENA

( Figs 1–3 View Figure 1 View Figure 2 View Figure 3 , 7–8 View Figure 7 View Figure 8 )

Type species: Arius platypogon Günther, 1864 .

Diagnosis

Posterior branch of lateral ethmoid depressed (13, 0> 1); fenestra delimited by lateral ethmoid and frontal very small or indistinct (17, 1> 0); temporal fossa absent (38, 0> 1); epioccipital contacting small narrow area of diagonal crest associated with neural spine of fourth vertebra (44, 2> 0); ventral crest of parieto-supraoccipital process well-developed through entire extension of process (48, 0> 1); transverse crest associated with neural spine of fourth vertebra very high (200, 0> 1); median crest associated with neural spine of third vertebra very high (201, 0> 1); median crest associated with neural spine of fourth vertebra very high (202, 0> 1). Ambiguous optimization: Vomer lateral processes wide (53, 1> 0); tooth plates associated with vomer present (55, 0> 1); subvertebral process indistinct or weakly developed (78, 1> 0); dorsal crest of urohyal projected anteriorly (156, 0> 1).

Included species

Occidentarius platypogon ( Günther, 1864) View in CoL .

Habitat and distribution: Marine, western America ( Fig. 7 View Figure 7 ).

Remarks

The genus Occidentarius was well defined in previous morphological and molecular studies (Marceniuk and Menezes 2003, Betancur-R. 2009, Marceniuk et al. 2012), which was corroborated in the present analysis, but without consensus regarding its relationships.

References

Gunther A. Catalogue of Fishes in the British Museum, vol. 5. - Catalogue of the Physostomi, Containing the Families Siluridae, Characinidae, Haplochitonidae, Sternoptychidae, Scopelidae, Stomiatidae in the Collection of the British Museum. London: Trustees of the British Museum (Natural History), 1864, xxii + 455 p.

Marceniuk AP, Menezes NA, Britto MR. Phylogenetic analysis of the family Ariidae (Ostariophysi: Siluriformes), with a hypothesis on the monophyly and relationships of the genera. Zoological Journal of the Linnean Society 2012; 165: 534 - 669. https: // doi. org / 10.1111 / j. 1096 - 3642.2012.00822. x

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 7. Representative skull, in dorsal view, and distribution of the Ariinae incertae sedis. A, Occidentarius platypogon, catfishesbone. acnatsci.org.

Figure 8. Occidentarius platypogon, BMNH 1864.1.26.316-319, eastern Pacific, type species of the genus.

Figure 7. Representative skull, in dorsal view, and distribution of the Ariinae incertae sedis. A, Occidentarius platypogon, catfishesbone. acnatsci.org.