Hyphessobrycon clavatus Zarske 2015

This species is distinguished by the following characters: undeveloped humeral spot and the dark diffuse longitudinal band is indifferent developed; longitudinal band starts behind the operculum or below the dorsal fin and runs to the tips of the middle rays of the caudal fin; a golden or silvery stripe above the longitudinal band is not developed; body relatively short and high, looks somewhat like a club, body depth 3.04 (2.69-3.32) times in body length; maxillary bone with (mean) 6 (6.40, 4-8) conical to tricuspid teeth; outer row of the praemaxillary bone are in the mean 2 (1.68. 1-3 ) tricuspid teeth; in a longitudinal row are 31 (31.27. 30-32) scales; lateral line relatively short and has developed in the mean 5 (5.18, 4-6) pored scales; in males, ventral fins reach beyond the origin of anal fin, not in the females; presence of small hooks on the first 6-7 divided fin rays of the anal fin of the males, also on the first fin rays of the ventral fins; 4 (4.18. 3-5) scales are on the beginning of the base of anal fin; vertebrae mean 32 (32.72, 32-33); branched (?) anal fin rays, mean 19 (18.81, 17-20) (Ref. 105293).

Hyphessobrycon clavatus is a species of South American tetra, belonging to the family Characidae. It is a pale golden green color, with its belly being even paler. It has an orange midlateral line. Below the midlateral line is a thick black stripe that fades around the gills. Their fins have white tips. They are known to reach about 3 centimeters (1.2 inches) in length. Its species name, clavatus, is derived from the Latin term clava lat, meaning club-shaped. Hyphessobrycon clavatus is known to inhabit the waters of Peru. As a pelagic fish, they swim near the surface of the water. They have seen limited use in the fish trade.