Bagre filamentosus (Swainson 1839)

Ceríaco, Luis M. P., Santos, Bruna S., Semedo, Thiago B. F., Garcia, Lucas Canes & Moreira, Cristiano Rangel, 2023, The fish collection of José Mariano da Conceição Veloso (1742 - 1811) and the beginning of ichthyological research in Brazil, with a taxonomic description of the extant specimens, Zootaxa 5391 (1), pp. 1-85 : 28

Bagre filamentosus (Swainson 1839)

Extant specimens: MCUC ZOO.0000017 ( Fig. 16 ).

Classification on the specimen: “P. Abd. Silurus bagre ”.

Common names on the specimen (Portuguese/Tupi): None.

Comments: This species was undescribed at the time Veloso prepared it. The original classification on the herbarium sheet refers to Silurus bagre Linnaeus 1766 (= Bagre bagre ). In the Ajuda inventory ( Ferreira 1794) there are 34 herborized specimens of Silurus herborized mentioned, however, no specimen is mentioned in the transference list to the University of Coimbra. While there is no explicit mention of Silurus bagre in Veloso’s Ichthyologia Fluminensis, it seems to be included in the description of Silurus catus [= Ameiurus catus ( Linnaeus 1758) ], a North American ictalurid. This is primarily due to the mention in Veloso’s description that it occurs in both freshwater and marine environments. Not only the ariid Bagre filamentosus is morphologically distinct from Ameiurus catus , Ariidae is the only marine catfish family to occur in Brazil. Bagre filamentosus was recently considered a valid species and removed from the synonym of Bagre marinus (Mitchill, 1815) which is now restricted to the populations of the northwestern Atlantic ( Marceniuk et al. 2022). This species occurs in the Western Atlantic from Nicaragua to Rio de Janeiro ( Brazil) ( Marceniuk et al. 2022).

Figures

FIGURE 16. Bagre filamentosus (Swainson 1839), MCUC ZOO.0000017, 375 mm SL. Photo by Luis M. P. Ceríaco.