Genidens Castelnau, 1855

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 : 442

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.11282605

persistent identifier

https://treatment.plazi.org/id/03F32B77-FFF7-FFB1-0C74-F9D9FCC44DA7

treatment provided by

Plazi

scientific name

Genidens Castelnau, 1855
status

 

Genidens Castelnau, 1855 View in CoL View at ENA

MP 100, BI 1, ML 100

( Figs 1–3 View Figure 1 View Figure 2 View Figure 3 , 12B View Figure 12 , 14 View Figure 14 )

Type species: Bagrus genidens Valenciennes, 1840 .

Diagnosis

Temporal fossa very reduced (39, 1> 0); dentary teeth restricted to mesial two-thirds (116, 1> 0); posterolateral processes of urohyal short (160, 1> 0); posterolateral processes of urohyal two-thirds as long as distal portion of bone (162, 1> 2); posterior portion of second basibranchial short and wide (167, 2> 3).

Ambiguousoptimization: Mesialborderwithparieto-supraoccipital as long as distal portion of bone (36, 1> 0); tooth plates attached to vomer by ligaments (57, 0> 1); otolith posterior margin rounded (74, 1> 0); posterolateral processes of urohyal as long as or longer than distal portion of bone (162, 0> 1).

Included species

Genidens barbus (Lacepède, 1803)

Genidens genidens (Cuvier, 1829)

Genidens machadoi (Miranda Ribeiro, 1918)

Genidens planifrons (Higuchi, Reis & Araújo, 1982) .

Habitat and distribution: Brackish and marine waters, east and southern South America ( Fig. 12 View Figure 12 ).

Remarks

Total-evidence analysis supports the monophyly of Genidens , as reported in previous phylogenetic studies (Betancur-R. 2009, Marceniuk et al. 2012), with a new hypothesis of relationships. The species of Genidens form a species flock, as evidenced by their shallow genetic divergences (Cerqueira et al, unpublished work).

Kingdom

Animalia

Phylum

Chordata

Order

Siluriformes

Family

Ariidae

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