Hasemania crenuchoides Zarske & Géry, 1999, Zarske & Gery, 1999

Serra, Jane Piton & Langeani, Francisco, 2015, A new Hasemania Ellis from the upper rio Paraná basin, with the redescription of Hasemania crenuchoides Zarske & Géry (Characiformes: Characidae), Neotropical Ichthyology (Neotrop. Ichthyol.) 13 (3), pp. 479-486: 483-485

publication ID

http://doi.org/ 10.1590/1982-0224-20140107

DOI

http://doi.org/10.5281/zenodo.4776293

persistent identifier

http://treatment.plazi.org/id/03BCB80F-6A52-FF9B-FF2F-5EAD9700B643

treatment provided by

Carolina

scientific name

Hasemania crenuchoides Zarske & Géry, 1999
status

 

Hasemania crenuchoides Zarske & Géry, 1999  

Figs. 4-5 View Fig View Fig

Hasemania crenuchoides Zarske & Géry, 1999   (original description, type locality: corrego Planaltina, oberer rio São Bartolomeu (mündend in den rio Corumba, Nebenfluss des rio Paranaiba, La-Plata system), 1050 m über NN, nahe Planaltina, nordöstl. von Brasilia, Distrito Federal, Bundesstaat Goias, Brasilien, etwa 15°38’ südl. Breite und 47°40’ westl. Länge); Lima et al., 2003 (128: check list for the genus); Bertaco & Malabarba, 2007 (compared to H. nambiquara   ); Langeani et al., 2007 (partim, 121: holotype (MZUSP 52723) and two paratypes (MHNG 2594.044) morphometrics and meristics comparisons with Hasemania   specimens from rio Grande (= Hasemania uberaba   ); Bertaco & Carvalho, 2010 (compared to H. kalunga   ); Langeani & Serra, 2010 (733: rhinosphenoid bone comparisons with Coptobrycon bilineatus   ); Zanata & Serra, 2010 (compared to H. piatan   ).

Diagnosis. Hasemania crenuchoides   is distinguished from its congeners by having a black vertically-elongate humeral spot (vs. absent, except from H. kalunga   , H. nambiquara   , H. piatan   , and H. uberaba   ), ii,8 dorsal-fin rays (vs. ii,9, except H. hanseni   , H. kalunga   , H. melanura   , H. nana   , and H. uberaba   ); 11-14 branched anal-fin rays (vs. 16-19, except H. kalunga   , H. melanura   , H. nana   , H. piatan   , and H. uberaba   ), infraorbitals four and five (vs. a single ossification in the position occupied by infraorbitals four and five, except H. hanseni   , H. maxillaris   , H. melanura   , H. nambiquara   , and H. nana   ), and presence of scales covering the anal-fin base (vs. absent, except H. hanseni   , H. maxillaris   , H. melanura   , H. nambiquara   , H. nana   , and H. uberaba   ). Additionally, H. crenuchoides   differs from H. melanura   by having maxillary teeth (vs. absent); from H. nambiquara   by the absence of a broad black band in the midlateral line, from the humeral region to the caudalfin (vs. presence), and from H. piatan   by possessing 19 principal caudal-fin rays (vs. 18).

Description. Morphometric data in Table 2 View Table 2 . Body deep and transversely rounded. Greatest body depth between tip of supraoccipital spine and dorsal-fin origin. Head moderately deep and rounded anteriorly in lateral profile; eye small. Dorsal profile of head distinctly convex from margin of upper lip to region of vertical through anterior nostril, nearly straight from that point to tip of supraoccipital spine. Dorsal profile of body slightly convex from tip of supraoccipital spine to dorsal-fin origin, posteroventrally inclined along dorsal-fin base, straight from terminus of dorsal-fin base to origin of caudal-fin rays. Ventral profile of head and body convex from margin of lower lip to analfin origin, straight and posterodorsally inclined along analfin base, nearly straight in caudal peduncle. Infraorbital series complete. Rhinosphenoid cartilaginous.

Jaws equal, mouth terminal. Premaxillary dentition in two rows. Outer row with 3(4), 4*(25) or 5(1) tricuspid teeth and inner row with 5*(30) irregularly placed teeth with 5 cusps. Maxilla with 1(4), 2*(24), 3(4), or 4(1) tricuspid teeth along anterior dentigerous portion of bone. Dentary with single row of 4*(27) or 5(4) larger teeth with 5 cusps anteriorly followed by 5(2) or 6(2) distinctly smaller ones, with 1 or 3 cusps.

Dorsal-fin rays ii,8*(38). Anal fin short, iii-iv,11(3), 12*(24), 13(9), or 14(2) rays. Caudal fin forked, lobes rounded and similar in size, with some scales covering basal portion of rays. Principal caudal-fin rays i,8/8,i(1); i,9/8,i(33); or i,9/9/i*(1). Pectoral-fin rays i,9(5), 10(16), 11*(16) or 12(1), its tip falling short of pelvic-fin insertion. Pelvic-fin rays i,5(4), 6(32) or 7*(1). Adipose fin absent.

Scales cycloid. Lateral line incomplete. Pored scales: 5(1), 7(1), 9(2), 11(3), 12*(9), 13(7), 14(5), 15(4), 16(4) or 17(2). Longitudinal scale series including perforated scales 20(1), 22(2), 23(5), 24(4), 25(10), 26(7), 27*(5), 28(1), 29(1), 31(1) or 33(1). Horizontal scale rows between lateral line and dorsal-fin origin 4(1) or 5*(37). Horizontal scale rows between lateral line and pelvic-fin origin 4*(38). Scale sheath along basal portion of anal-fin rays with 4*(6), 5(12), 6(12), 7(5), 8(2) or 9(1) scales in single series. Horizontal scale rows around caudal peduncle 13(3), 14*(34) or 15(1). Scales between tip of supraoccipital process and dorsalfin origin 10(6), 11(13), 12(11), 13*(1) or 14(1). Vertebrae 33(2) or 34(2). First gill arch with 6(2) epibranchial, 8(2) ceratobranquial, 1(2) on cartilage between ceratobranchial and epibranchial, and 2(2) hypobranchial gill-rakers.

Color in alcohol. Based on recently collected specimens. Preserved specimens with yellowish bodies and darkbrown chromatophores concentrated more dorsally and along posterior margin of scales (mainly in midportion), resulting in slightly reticulated pattern on body; humeral spot irregular, inconspicuous and vertically elongated, midlateral stripe extending from slightly behind humeral spot to middle caudal-fin rays. Fins with chromatophores more concentrated along rays than on membranes ( Figs. 4-5 View Fig View Fig ).

Color in life. Body and head yellowish, more so along ventral portion of head, opercular series and anterior portion of body. Pectoral fin yellowish. Dorsal fin mostly hyaline. Pelvic fin reddish to yellowish. Anal fin red overall but turning yellowish along posteriormost rays. Caudal fin reddish along most superior and inferior rays and yellowish along median ones.

Sexual dimorphism. No secondary sexual characters were observed.

Distribution. Hasemania crenuchoides   seems to be restricted to the streams from the upper rio Paraná and upper rio Tocantins in the Distrito Federal, Brazil. This is the first reference to the species for the rio Tocantins basin.

Material Examined. Brazil: Distrito Federal: Upper rio   Paraná drainage. DZSJRP 11039, 47 (4 c&s, 33.8-50.7 mm SL) 20.3-58.0 mm SL, and DZSJRP 14222, 4, 42.9-52.9 mm SL, córrego Paranoazinho, tributary of rio Sobradinho. MHNG 2594.044 View Materials , 2 View Materials of 5 paratypes, 28.0 and 38.0 mm SL; and MZUSP 52732 View Materials , 63.7 mm SL, holotype, male, córrego Planaltina. Upper rio   Tocantins drainage. DZSJRP 14185, 20, 35.6-78.2 mm SL, ribeirão da Contagem, Contagem Biological Reserve   .

Table 2. Morphometric data of holotype (H) (MZUSP 52732), paratypes (MHNG 2594.044) and non-type specimens (DZSJRP 11039 and DZSJRP 14185) of Hasemania crenuchoides. SD = standard deviation, N = 38 including the holotype and paratypes.

  H Paratypes Range Mean SD
Standard length (mm) 63.7 28.0-38.0 28.0-63.7 41.9  
Percents of Standard length    
Body depth 34.4 32.8-36.0 27.8-36.1 31.4 1.7
Head length 29.7 27.9-30.0 26.2-30.0 28.0 0.9
Predorsal distance 56.8 52.6-55.0 50.1-56.8 52.6 1.3
Preventral distance 51.2 48.4-50.0 47.1-51.9 49.5 1.1
Pelvic-anal fin distance 16.5 17.5-18.2 15.3-19.5 17.4 1.0
Caudal-peduncle depth 14.3 12.8-12.9 12.2-14.3 13.3 0.5
Caudal-peduncle length 15.7 17.5-17.6 12.8-18.1 16.2 1.1
Dorsal-fin base length 12.6 9.7-10.0 9.7-15.0 13.1 1.3
Anal-fin base length 18.7 18.9-19.5 17.5-22.7 19.9 1.3
Pectoral-fin length 18.2 18.7-21.1 18.2-22.5 20.3 1.1
Pelvic-fin length 14.1 13.4-14.3 10.1-17.9 15.2 1.4
Dorsal-fin length 21.4 21.3-23.9 21.3-28.6 25.4 1.7
Anal-fin length 16.0 16.8-17.6 16-21.6 19.2 1.4
Caudal-fin length 20.4 18.9-22.5 18.2-24.2 21.1 1.5
Percents of Head length    
Head depth 97.9 85.7-94.3 85.6-97.9 90.3 2.9
Orbital diameter 25.4 32.1 25.4-34.8 31.3 2.0
Snout length 26.5 22.6 20.2-26.5 22.6 1.3
Interorbital width 33.9 32.1-34.0 30.9-35.5 33.2 1.3

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Characiformes

Family

Characidae

Genus

Hasemania

Loc

Hasemania crenuchoides Zarske & Géry, 1999

Serra, Jane Piton & Langeani, Francisco 2015
2015
Loc

Hasemania uberaba

Serra & Langeani 2015
2015
Loc

H. kalunga

Bertaco & Carvalho 2010
2010
Loc

H. piatan

Zanata & Serra 2010
2010
Loc

H. nambiquara

Bertaco & Malabarba 2007
2007
Loc

Hasemania crenuchoides Zarske & Géry, 1999

Zarske & Gery 1999
1999
Loc

Hasemania

Ellis 1911
1911