Clupeacharax anchoveoides Pearson, 1924

Vera-Alcaraz, Héctor S., Rios, Gabriela & Emhart Vuletich, Jimmy D., 2017, Confirmation of the occurrence for seven fish species in Paraguay., Ichthyological Contributions of PecesCriollos 49, pp. 1-9 : 4

Clupeacharax anchoveoides Pearson, 1924

Morphology. Body elongated, compressed, belly keeled. Dorsal profile of body straight to slightly concave; ventral profile convex, pronounced below pectoral-fin insertion. Head small; eye large; strong teeth present on mouth, long maxilla, surpassing vertical line of anterior margin of the eye; gill membranes free of isthmus. Dorsal-fin insertion behind midpoint of body; adipose fin present; pectoral-fin insertion low, pectoral fin long, surpassing ventral-fin insertion; pelvic-fin short, not reaching anal-fin insertion; anal-fin base long; caudal fin forked. Lateral line complete, running low on body just above anal fin base.

Counts. Based in four specimens. Lateral line scales 34-38. Lateral scales of the upper series 3-4, lateral scales of the lower series 2.

Coloration in alcohol. Body ground yellow with dispersed dark brown chromatophores on dorsal portion. Dark brown chromothophores concentrated on mouth, posterior margin of dorsum of head, and anal fin base. A silver diffuse lateral stripe on midline of flanks, dark brown chromatophores forming a lateral band bellow silver stripe.

Remarks. First listed in Paraguay by Chernoff et al. (2001) in the Río Apa, no record of specimens.

Examined material. All from Paraguay: Departamento de Presidente Hayes: CZCEN 396, alc. 5, 25.7-32.9 mm SL, Riacho Paloma. CZCEN 397, alc. 1, 36.7 mm SL, Rio Negro, Nanawa.