Papuarius, Marceniuk & Oliveira & Ferraris Jr, 2024

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 : 473

Papuarius gen.nov.

( Figs 1–3 , 52 )

ZooBank registration: urn:lsid:zoobank.org:act:AD2D552B-DF0E-46F1-B9CD-B712C9703F4 .

Type species: Arius latirostris Macleay, 1883 .

Diagnosis

Mesethmoid median portion moderately wide (2, 2> 1); lateral ethmoid main component of bony bridge formed by lateral ethmoid and frontal (15, 1> 0); frontal mesial laminar projection absent (23, 1> 0); posterior cranial fontanel relatively narrow and long (27, 1> 2); epiphyseal bar transversely elongate and longitudinally narrow (29, 0> 1); medial groove of cranium absent (30, 0> 1); anterior opening of aortic canal at base of subvertebral process and anteroventrally oriented (77, 0> 1); contact face for articulation of transcapular process with basioccipital large and depressed (85, 0> 1); dorsal crest of hyomandibula short and high (141, 0> 1); contact face between first epibranchial and first pharyngobranchial conspicuous (177, 0> 1); distal portion of uncinate process of third epibranchial acute (183, 1> 0).

Ambiguous optimization: Lateral horn of lateral ethmoid compressed and spatulate (11, 0> 1); posterolateral processes of urohyal lateroposteriorlyoriented,forminganglegreaterthan70° (161, 1> 0).

Etymology

The first part of the generic name comes from Papua, a common element of the names of the six Indonesian provinces as well as the independent country that together compose the island group called New Guinea. The second part is from the frequently used ariid generic name Arius . Gender: masculine.

Included species

Papuarius latirostris Macleay, 1883 .

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

Remarks

The genus Papuarius is established to accommodate Papuarius latirostris , a species that has been assigned to a number of different genera over time. In this study it is likewise assigned to different places within the Ariina , but without a clear association to any single genus.

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 52. Pauparius latirostris, AMS I 9072, New Guinea, type species of the genus.