Open Access PDF - Sven Kullander
Open Access PDF - Sven Kullander
Open Access PDF - Sven Kullander
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in Marabá, river bank; 18 Sep 1990, R. Stawikowski<br />
et al. Rio Itacaiúnas drainage: Pará: MZUSP<br />
33140, 5, to ca 430 mm SL, MZUSP 40296, 1,<br />
218.8 mm SL, NRM 12878, 4, 196.6-233 mm SL;<br />
Caldeirão; Apr-May 1983, M. Goulding. – MZUSP<br />
32755, 25, ca 20 mm SL; Rio Itacaiúnas, Caldeirão;<br />
14 Oct 1983, M. Goulding. – MZUSP 33139, 7,<br />
140-190 mm SL; Caldeirão, pedral; Nov 1983, M.<br />
Goulding. – MZUSP 33141, 3, 180-350 mm SL;<br />
Caldeirão, Igarapé Boa Vista. Nov 1983. M. Goulding.<br />
– MZUSP 33142, 1, 103.1 mm SL; Caldeirão,<br />
Igarapé Aguas Claras; Nov 1983, M. Goulding.<br />
– MZUSP 33143, 1, 65.2 mm SL, MZUSP 33756,<br />
7, 230-250 mm SL; Caldeirão, Cachoeira Carreira<br />
Comprida, rocky pool; 14 Oct 1983, M. Goulding.<br />
Non-types (translocations). Brazil: Rio Paraná drainage:<br />
MZUSP 38912, 1, 125.0 mm SL; Minas Gerais: Rio<br />
Paranaíba, projeto UHE Bocaina; Nov 1987 - Apr 1988,<br />
Leme Engenharia S/A. – MZUSP 45118, 5; Minas Gerais:<br />
Represa de Embarcação (Rio Paranaíba); no date, no<br />
collector. Rio Paraguai drainage: MZUSP 36762, 1<br />
adult; Mato Grosso do Sul: Itiquira, dam in Fazenda<br />
Santo Antonio do Paraíso; 21 Oct 1980, J. H. B. Medeiros<br />
& J. C. de Oliveira. Paraguay: Rio Paraná drainage:<br />
NRM 50336, 2, 46.3-54.7 mm SL; Alto Paraná: Rio Limoy,<br />
Reserva Limoy de Itaipú; 1 Mar 1998, S. O. <strong>Kullander</strong><br />
et al.<br />
Diagnosis. Uniquely distinguished from other<br />
species of Cichla by the combination of 83-104<br />
scales in E1 row and adult colour pattern including<br />
five wide dark vertical bars below the dorsal<br />
fin (bars 1-3, 1a, 2a).<br />
345<br />
Description. Based on the holotype (219 mm SL)<br />
and selected specimens of similar length unless<br />
otherwise stated. Refer to Figs. 49-54 for general<br />
shape and colour pattern, Table 20 for morphometrics,<br />
and Tables 2-10 for meristics.<br />
Adults moderately elongate (depth 26.0-<br />
30.7 % SL, N = 12, 202-298 mm SL). Predorsal<br />
contour smoothly arched; largest specimen examined,<br />
430 mm SL, with incipient nuchal protuberance.<br />
Maxilla extending to below middle of<br />
orbit. Lower jaw prognathous, articulation below<br />
posterior margin of orbit or slightly posterior. In<br />
21 specimens, lateral line bilaterally discontinuous<br />
in 18 specimens, continuous on right side in one,<br />
continuous on left side in one, subcontinuous on<br />
right side in one.<br />
Dorsal fin rays 4-6 longest; soft dorsal fin<br />
rounded, not reaching to caudal fin base. Anal<br />
fin rounded, not reaching to caudal fin base.<br />
Caudal fin subtruncate or slightly convex, with<br />
more angled dorsal corner and rounded lower<br />
corner. Pectoral fin pointed, extending halfway<br />
to origin or middle of soft anal fin. Pelvic fin<br />
subacuminate, with tip formed by rays 1-2, ray 1<br />
longest, extending halfway to anal fin origin or<br />
slightly beyond.<br />
Dorsal fin scaled from behind last spine, scales<br />
behind each ray, in three rows, posteriorly gradually<br />
reduced to one row, last membrane naked;<br />
scales also in deeper branches. Anal fin with thick<br />
basal and anterior scale cover, posterodistally less<br />
densely scaled, only last two membranes naked.<br />
Caudal fin extensively scaled in adults, except for<br />
posterior margin and middle membranes. Pectoral<br />
fin basally with a few small cycloid scales.<br />
Table 20. Morphometry of Cichla piquiti. Measurements are in percent of SL, except SL (in mm). Linear regression<br />
parameters calculated from original measurements in mm. HT, holotype (MZUSP 40296).<br />
N min max mean SD HT a b r<br />
SL (mm) 20 65.2 298.0 192.6 219.0<br />
Head length 20 30.6 35.0 31.8 0.96 31.4 3.680 0.297 0.999<br />
Snout length 20 10.3 12.0 11.4 0.44 11.6 –0.755 0.118 0.995<br />
Head depth 20 20.9 23.6 22.0 0.70 22.6 –0.470 0.223 0.994<br />
Body depth 20 26.0 30.7 28.3 1.22 30.3 –2.914 0.299 0.987<br />
Orbit diameter 20 6.7 11.2 7.9 1.09 7.5 4.655 0.052 0.984<br />
Interorbital width 20 6.9 8.1 7.5 0.35 7.8 –0.581 0.078 0.989<br />
Pectoral fin length 18 22.1 25.1 23.2 0.89 25.1 –3.488 0.251 0.989<br />
Upper jaw length 20 14.2 15.6 14.7 0.34 14.9 –0.822 0.151 0.995<br />
Lower jaw length 20 18.2 20.1 18.7 0.47 19.0 0.636 0.183 0.998<br />
Caudal peduncle depth 20 10.0 12.1 11.1 0.68 12.1 –0.178 0.112 0.975<br />
Caudal peduncle length 20 16.0 19.9 17.8 0.93 17.7 0.585 0.174 0.982<br />
Dorsal spine length 20 11.1 13.7 12.5 0.59 11.9 1.579 0.117 0.984<br />
Ichthyol. Explor. Freshwaters, Vol. 17, No. 4