Hyphessobrycon clavatus Zarske, 2015
Hyphessobrycon clavatus
photo by Hoffmann, P. and M. Hoffmann

Family:  Characidae (Characins; tetras), subfamily: Stethaprioninae
Max. size:  3.06 cm SL (male/unsexed)
Environment:  pelagic; freshwater
Distribution:  South America: Peru.
Diagnosis:  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).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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