Cynoscion sp., 1861

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 : 73

Cynoscion sp. , probably Cynoscion jamaicensis (Vaillant & Bocourt 1883)

Extant specimens: MCUC ZOO.0000023 ( Fig. 58 ).

Classification on the specimen: None.

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

Comments: Two species of the genus Cynoscion with truncate caudal fin and ctenoid scales occur in the southwestern Atlantic, C. guatucupa and C. jamaicensis ( Menezes & Figueiredo 1980; Chao 2002). Cynoscion jamaicensis can be distinguished from C. guatucupa by a higher number of dorsal-fin rays (22–27 in C. jamaicensis vs. 18–21 in C. guatucupa ) and by a higher number of scales above lateral line (68–73 in C. jamaicensis vs. 63–66 in C. guatucupa ) ( Menezes & Figueiredo 1980; Chao 2002). The specimen analyzed has more than 23 dorsal-fin rays, however, due to its poor conditions, it is not possible to count the scales, hindering a proper identification of this specimen.

Figures

FIGURE 58. Cynoscion sp. (Cuvier 1830), MCUC ZOO.0000023, 300 mm SL. Photo by Luis M. P. Ceríaco.