Revision of Bagre

[Silurus]

Marceniuk, AP, C Oliveira, JBL Sales & R Betancur-R, 2022. The marine catfishes of the genus Bagre (Siluriformes; Ariidae) from the Western Atlantic. Marine Biodiversity 52:12.

Abstract
The marine catfishes of the family Ariidae present an ample range of life histories. Although most species are demersal, and are common in estuaries and coastal zones, species of the genus Bagre Cloquet, 1816, are pelagic and are typical of coastal and offshore environments. While the genus Bagre is a well-defined monophyletic group, the taxonomy of its species is complex, and the four recognized species include a total of 12 synonyms. Based on morphological and molecular data, we provide a redescription of Bagre marinus Mitchill, 1815, restricting its geographic range to the Gulf of Mexico and the southeastern coast of the USA. We also resurrect Bagre filamentosus Swainson, 1839 (formerly a junior synonym of B. marinus), a species endemic to the Caribbean Sea and the Atlantic coast of South America. Finally, we redescribe Bagre bagre Linnaeus, 1766, clarifying geographic range of all species. Our study contributes to the alpha taxonomy of the genus Bagre and to biogeographic and evolutionary history of its species in the western Atlantic.

[Jools]

Could I have a copy of this please? I suspect some of the "new" species are in the cat-elog and I know catch locations are variously Nicaragua / Costa Rica, River San Juan, USA, Florida Keys, Islamorada and USA, Texas, Texas City.


Cheers,

Jools

[bekateen]

https://link.springer.com/article/10.10 ... 21-01238-0

[bekateen]

Key to the species of the genus Bagre (from Marceniuk, et al., 2022)

• 1. 17–21 gill rakers on first arch; dorsal fin not produced in a band-like filament; anal and pelvic fins without dark blotch...
  Bagre panamensis
  • 4–12 gill rakers on first arch; dorsal fin produced in a band-like filament; anal and pelvic fins with dark blotch... 2

• 2. 9–26 anal fin rays; dorsal fin band-like filament not reaching anterior insertion of adipose fin... 3
  • 27–37 anal fin rays; dorsal fin band-like filament beyond the posterior insertion of the adipose fin... 4

• 3. 19–22 anal fin rays, rarely 23; cephalic shield granulated, especially on the occipital process and sphenotic; supraoccipital process profile very elevated posteriorly….
  Bagre filamentosus
  • 23–26, rarely 22 anal fin rays; cephalic shield smooth, eventually granulated only in central portion of occipital process; supraoccipital process profile moderately elevated posteriorly....
    Bagre marinus

• 4. 4–6 gill rakers on first arch…
  Bagre pinnimaculatus
  • 7–12 gill rakers on first arch...
    Bagre bagre

[Jools]

Thanks HH and Eric.



Jools