taxonID	type	description	language	source
E55FC469FFB4FF82FC568FDFFF28AEAD.taxon	materials_examined	Holotype: MCP 19615 (47.6 mm SL, male) creek tributary of rio Pelotas, on road from Silveira to Rondinha (rio Uruguay drainage), Bom Jesus, Rio Grande do Sul, Brazil, 14 January 1989, C. A. S. Lucena, E. H. L. Pereira & P. V. Azevedo. Paratypes: Brazil: Rio Grande do Sul: Vacaria: MCP 14376, (936, 7 c & s, 15.1 - 61.5 mm SL), MZUSP 84302 (20, 38.5 - 53.5 mm SL), MNRJ 26438 (20, 37.4 - 56.1 mm SL) collected with the holotype; MCP 11632 (19), arroio São Paulino, on road from Vacaria to Bom Jesus (tributary of rio Quebra-Dentes, laguna dos Patos drainage) (approx. 28 o 33 ’ S 50 o 48 ’ W), 2 May 1985, C. A. S. de Lucena, L. R. Malabarba & R. E. Reis. Bom Jesus: MCP 11637 (3), rio Manoel Leão near São José dos Ausentes (tributary of rio Pelotas, rio Uruguay drainage) (approx. 28 o 48 ’ S 50 o 03 ’ W), 2 May 1985, C. A. S. Lucena, L. R. Malabarba, & R. E. Reis.	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB4FF82FC568FDFFF28AEAD.taxon	diagnosis	Diagnosis. Bryconamericus patriciae differs from other Bryconamericus species, from southern South America, by the combination of body depth (25.5 - 30.3 % of SL, mean 28.0 versus 31.2 - 39.3 %, mean 34.6 in B. iheringii; 33.7 - 36.4 % of SL, mean 34.8 in B. ikaa; and 30.5 - 36.9 %, mean 34.4 in B. ecai); head length (25.2 - 27.6 % of SL, mean 26.3 versus 22.5 - 25.3 %, mean 23.6 in B. lambari); pelvic fin length (11.0 - 14.4 % of SL, mean 12.5 versus 14.2 - 18.0 %, mean 15.5 (female), 16.3 - 21.3 %, mean 18.3 (male) in B. rubropictus); branched anal-fin rays (14 - 18 versus 19 - 22 in B. agna; and 22 - 25 in B. sylvicola); teeth of outer row of premaxilla regularly implanted (versus irregularly implanted in B. stramineus and B. exodon); teeth of inner row of premaxilla pentacuspid (versus heptacuspid in B. uporas); teeth compressed distally (versus teeth massive in B. microcephalus, B. ornaticeps, and B. tenuis); males with bony hooks on pelvic and anal fins (males without bony hooks on pelvic and anal fins in B. menni and B. pyahu).	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB4FF82FC568FDFFF28AEAD.taxon	description	Description. Morphometric data summarized in Table 1. Body laterally compressed. Greatest body depth at origin of dorsal fin. Dorsal profile of body slightly convex from tip of supraoccipital to dorsal fin origin, nearly straight from posterior dorsal-fin base to adipose fin, and gently concave from adipose-fin base to caudal-fin origin. Ventral body profile slightly convex from isthmus to anal-fin origin, straight along anal-fin base, and gently concave from posterior of anal-fin base to caudal-fin origin. Mouth sub-terminal, lower jaw shorter than upper jaw. Snout profile rounded from margin of upper lip to vertical through anterior nostrils, slightly convex from that point to supraoccipital. Ventral profile of head gently convex. Premaxilla with two series of teeth. Four teeth in inner row with three to five cusps, central cusp greater than others; 3 or 4 tricuspid teeth in outer row; teeth of inner row distinctly larger than teeth of outer row. Dentary with 9 to 12 teeth. Anterior six dentary teeth largest, with 3 to 5 cusps; posterior 3 to 6 teeth progressively smaller, tricuspid or conical. Maxilla with 4 to 6, usually tricuspid teeth. Dorsal-fin rays ii, 8. First unbranched dorsal-fin ray about half length of second ray. Posterior border of dorsal fin straight; tip not reaching adipose fin when fin depressed. Dorsal-fin origin situated slightly posterior to middle of body. Adiposefin origin located at vertical through insertion of last anal-fin ray. Anal-fin rays iii-iv, 14 - 18 (iii, 17). Anal fin origin at vertical through insertion of last dorsal-fin ray. Distal border of anal fin straight or slightly concave. Anal-fin rays in males with few and tiny bony hooks, from last unbranched ray to 8 th branched ray, one pair of hooks per segment and up to 10 pairs per ray, present in posterolateral surface of ray. Female without hooks on anal fin. Pectoral-fin rays i, 10 - 12 (i, 10), distal margin slightly rounded, not reaching pelvic-fin origin. Pelvic-fin rays i, 6 - 7 (i, 6), distal margin rounded, not reaching anal-fin origin. Pelvicfin origin slightly anterior to vertical through dorsal-fin origin. Pelvic fin with few and tiny bony hooks in males, more elongate that anal bony hooks, in ventromedial surface of each ray, one hook per segment, absent on unbranched ray. Females without hooks on pelvic fin. Caudal fin forked, margin of lobes rounded, equal in size. Principal caudal-fin rays 19; 13 - 16 procurrent rays dorsally and 10 - 14 ventrally. 58 Two new species of Bryconamericus Eigenmann from southern Brazil Scales cycloid. Caudal fin not scaled. Single row of 4 - 9 (6) scales covering base of anteriormost anal-fin rays. Lateral line complete, 37 - 40 (38) perforated scales; 5 - 6 (5) scales in transverse series from dorsal-fin origin to lateral line; 4 - 5 (5) scales between lateral line and anal-fin origin. Predorsal scales 13 - 15 (15), sometimes in irregular series. Scales around caudal peduncle 14. Vertebrae: precaudal 16 - 17, caudal 20 - 21. Supraneurals 5 - 6 (in seven c & s specimens). Color in alcohol. Ground color tan. Dorsal portions of head and body region above midlateral stripe more pigmented. Dark midlateral stripe present, more conspicuous posterior to vertical through dorsal-fin origin, not reaching upper and lower borders of caudal peduncle and not extending on base of caudal fin rays. Humeral spot faint, vertically elongate, centered on third or fourth scales of pored lateral line, and extended two series above and one below it. Pectoral, ventral, and caudal fins hyaline. Dorsal and anal fins slightly covered by dark chromatophores.	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB4FF82FC568FDFFF28AEAD.taxon	distribution	Distribution. Bryconamericus patriciae is know from the headwaters of rio Pelotas (rio Uruguay drainage) and rio das Antas (laguna dos Patos drainage) (Fig. 2).	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB4FF82FC568FDFFF28AEAD.taxon	etymology	Etymology. The specific name patriciae is given in honor to my wife Patrícia L. Gonçalves. Habitat. Bryconamericus patriciae has been collected in rivers and creeks with clear water and light to strong water current. The bottom was formed by rocks, stones, and in some points gravel and sand. The fishes are usually found in pools below the rapids. The water temperature can drop to 7 oC during the winter.	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB6FF85FC3A8FDBFBC2A8ED.taxon	description	Fig. 3	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB6FF85FC3A8FDBFBC2A8ED.taxon	materials_examined	Holotype: MCP 19608 (60.6 mm SL, male) creek in Linha Brasil, parallel to the road from Vila Deodoro to Venâncio Aires (tributary to arroio Castelhano, rio Taquari, laguna dos Patos drainage) (approx. 29 o 33 ’ S 52 o 17 ’ W), Venâncio Aires, Rio Grande do Sul, Brazil, 14 October 1994, Z. M. S. Lucena, C. A. S. Lucena & J. F. Pezzi da Silva. Paratypes: MCP 17494, (75, 7 c & s, 13.6 - 75.1 mm SL), collected with the holotype.	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB6FF85FC3A8FDBFBC2A8ED.taxon	diagnosis	Diagnosis. Bryconamericus ecai differs from other Bryconamericus species by the combination of body depth (33.1 - 36.9 % of SL, mean 34.9, versus up to 31.0 % in B. lambari; B. patriciae; B. stramineus; and B. exodon) eye diameter (31.1 - 33.9 % of HL, mean 32.3, versus 35.4 - 42.8 %, mean 39.0 in B. iheringii); snout length (26.8 - 32.4 % of HL, mean 29.6 versus 20.1 - 24.6 %, mean 22.2 in B. rubropictus); branched anal-fin rays (15 - 18 versus 18 - 20 in B. ikaa; 19 - 22 in B. agna; and 22 - 25 in B. sylvicola); and teeth of inner row of premaxilla tricuspid or pentacuspid (versus heptacuspid in B. uporas); teeth compressed distally (versus teeth massive in B. microcephalus, B. ornaticeps, and B. tenuis); males with bony hooks on pelvic and anal fins (males without bony hooks on pelvic and anal fins in B. menni and B. pyahu).	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB6FF85FC3A8FDBFBC2A8ED.taxon	description	Description. Morphometric data summarized in Table 1. Body laterally compressed. Greatest body depth at dorsal fin origin. Dorsal body profile slightly convex from tip of supraoccipital to dorsal-fin origin, nearly straight from posterior dorsal-fin base to adipose fin, and gently concave from adipose fin to caudal-fin origin. Ventral body profile convex from isthmus to anal-fin origin, straight along anal-fin base, and gently concave from posterior anal-fin base to caudal fin. Mouth sub-terminal, lower jaw shorter than upper jaw. Snout profile rounded from margin of upper lip to vertical through anterior nostrils, nearly straight from that point to supraoccipital. Ventral profile of head gently convex. Premaxilla with two series of teeth with three to five cusps, central cusp largest, teeth with same size in both series. Inner row with four teeth, 3 to 5 in outer row. Dentary with 8 to 10 teeth. Anterior 4 to 5 dentary teeth largest, with 3 to 5 cusps, with 3 to 5 posterior teeth becoming progressively smaller, tricuspid or conical. Maxilla with 3 to 4 teeth, with 3 to 5 cusps, approximately equal in size. Dorsal-fin rays ii, 8. First unbranched dorsal-fin ray about half length of second unbranched ray. Dorsal fin posterior border straight; it tip not reaching adipose fin when depressed. Dorsal-fin origin approximately at mid-length of body. Adipose-fin origin located slightly anterior to vertical through insertion of last anal-fin ray. Anal-fin rays iii-iv, 15 - 18 (iii, 18). Anal fin origin slightly anterior to vertical through insertion of last dorsal-fin ray. Distal border of anal fin slightly concave. Last unbranched to 7 th branched anal-fin rays with few, tiny bony hooks, one pair per segment. Up to 16 hook pairs per ray, usually 10 - 13. Hooks present in posterolateral surface of ray. Females without hooks on anal fin. Pectoral-fin rays i, 10 - 12 (i, 11), distal margin slightly rounded, not reaching pelvicfin origin. Pelvic-fin rays i, 6 - 7 (i, 7), distal margin straight, not reaching anal fin origin. Pelvic-fin origin slightly anterior of vertical through dorsal-fin origin. Male pelvic fin with thin bony hooks, more elongate than anal bony hooks, present in ventromedial surface of each ray, with one hook per segment, absent on unbranched ray. Females without hooks on pelvic fin. Caudal fin forked, lobes rounded, equal in size, not scaled. Principal caudal-fin rays 19; 11 - 12 procurrent rays dorsally and 10 - 12 ventrally. Scale cycloid. Anal fin with a single row of 7 - 10 (8) scales covering base of anteriormost rays. Lateral line complete, 36 - 38 (37) scales; 5 - 6 (5) scales in transverse series from dorsalfin origin to lateral line; 4 scales between lateral line and analfin origin. Predorsal scales 12 - 14 (13) sometimes in irregular series. Scales around caudal peduncle 14. Vertebrae: precaudal 16 - 17; caudal 18 - 19. Supraneurals 4 - 6 (in six c & s specimens). Color in alcohol. Ground color tan. Dorsal portions of head and body region above midlateral stripe more pigmented. Dark midlateral stripe, more conspicuous posterior to vertical through distal border of pectoral fin, expanded into faint, small horizontally elongate spot on caudal peduncle, not reaching upper and lower margins of caudal peduncle and extending on base of caudal fin rays. Two humeral spots, first, vertically elongate, centered on third or fourth scales of pored lateral line and extended two series above; second spot more diffuse, without clearly marked limits. Pectoral and pelvic fins hyaline. Dorsal, anal, and caudal fin with scattered dark chromatophores	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB6FF85FC3A8FDBFBC2A8ED.taxon	etymology	Etymology. From the Tupi-Guarani eçai, meaning small eye, in allusion to the smaller eye diameter in comparison to other Bryconamericus species.	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
E55FC469FFB6FF85FC3A8FDBFBC2A8ED.taxon	distribution	Distribution. So far known from the type-locality a creek tributary of the lower portion of rio Taquari (laguna dos Patos drainage), Rio Grande do Sul, Brazil. Habitat. Bryconamericus ecai was found in a creek with clear to turbid water, light to moderate water current and bottom with stones and sand.	en	Silva, José Francisco Pezzi da (2004): Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotropical Ichthyology 2 (2): 55-60, DOI: 10.1590/S1679-62252004000200002, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200002&lng=en&tlng=en
