Open Access PDF - Sven Kullander
Open Access PDF - Sven Kullander
Open Access PDF - Sven Kullander
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362<br />
about uniformly wide. Distinguished from C. vazzoleri<br />
by larger scales (86-105 vs. 95-114), but<br />
ranges overlap, and common absence of row of<br />
light spots along the abdominal side (vs. persistent<br />
in C. vazzoleri). Breeding C. pinima possess<br />
three ocellated bars, which continuous above<br />
upper lateral line when extending above it, and<br />
isolated blotches on dorsum usually not present<br />
(vs. dorsal blotches present or absent in C. vazzoleri,<br />
and typically three vertical rows of 3, 3, and<br />
2 blotches in C. jariina and C. thyrorus).<br />
Description. Based on the holotype and selected<br />
specimens of similar length unless otherwise<br />
stated. Refer to Figs. 64-74 for general shape and<br />
colour pattern, Table 23 for morphometrics, and<br />
Tables 2-10 for meristics.<br />
Adults relatively elongate (depth 24.9-30.3 %<br />
SL, N = 21, 204-310 mm SL). Predorsal contour<br />
gently curved. Nuchal hump observed in three<br />
specimens, 260, 307 and 430 mm SL. Maxilla extending<br />
to below anterior | or middle of orbit.<br />
Lower jaw prognathous, articulation below posterior<br />
margin of orbit. Lateral line bilaterally<br />
discontinuous in 32, unilaterally discontinuous<br />
in 27, bilaterally continuous in 10 of 69 specimens.<br />
Dorsal fin spines 3-4, 4 or 4-5 longest; soft<br />
dorsal fin rounded, reaching posterior to middle<br />
of caudal peduncle. Soft anal fin rounded, reaching<br />
to middle of caudal peduncle. Caudal fin<br />
subemarginate or subtruncate with angled dorsal<br />
corner and rounded ventral corner. Pectoral fin<br />
pointed, extending to halfway to posterior end<br />
of anal fin base. Pelvic fin subacuminate, tip<br />
formed by rays 1-2, ray 1 longest, extending<br />
halfway to first spine or soft ray of anal fin.<br />
Dorsal fin naked in specimens up to about<br />
140 mm SL, smallest specimen with a few scales<br />
on dorsal fin anteriorly 147 mm SL; specimens<br />
about 200 mm SL with single scale row along<br />
posterior margin of anterior and middle rays;<br />
from about 250 mm SL extensively scaled with<br />
up to three rows of scales anteriorly, reduced to<br />
one row posteriorly, and scales present between<br />
major fin ray branches. Anal fin scaled basally on<br />
anterior rays in specimens 100-150 mm SL, in<br />
specimens about 200 mm SL and larger extensively<br />
scaled except naked posterodistally. Caudal<br />
fin densely scaled in adults, scales absent only<br />
from distal half of middle of membranes between<br />
rays V2 and D2 and posterior margin of fin. Pectoral<br />
fin in large specimens naked or few basal<br />
scales present. Pelvic fin scaled anteriorly on both<br />
sides.<br />
Juveniles (Fig. 64) terete, all fins naked, except<br />
caudal fin base. Caudal fin distinctly emarginate.<br />
Colouration in preservative. Juveniles, ca 20 mm<br />
SL, yellowish white with a dark lateral band from<br />
head to caudal fin. Band includes dark postorbital<br />
spot, short horizontal stripe dorsally on opercle,<br />
and greyish band along middle of side containing<br />
three roundish black blotches, of which two below<br />
spinous dorsal fin and one below soft dorsal fin.<br />
Fins hyaline except for blackish, horizontally<br />
extended caudal spot.<br />
At about 40 mm SL (Fig. 64) bars 1-3 present<br />
but still very faint, extending height of side. Often<br />
Table 23. Morphometry of Cichla pinima. Measurements are in percent of SL, except SL (in mm). Linear regression<br />
parameters calculated from original measurements in mm. HT, holotype (INPA 691).<br />
N min max mean SD HT a b r<br />
SL (mm) 49 91.7 310.0 175.9 300.0<br />
Head length 49 30.1 33.9 31.7 1.04 33.2 0.316 0.315 0.994<br />
Snout length 49 10.3 12.5 11.1 0.54 12.5 –1.763 0.122 0.989<br />
Head depth 49 19.6 23.9 21.1 0.88 22.6 –2.958 0.230 0.992<br />
Body depth 49 24.2 30.3 26.6 1.49 28.0 –4.404 0.294 0.989<br />
Orbit diameter 49 6.8 9.6 7.8 0.70 7.3 2.936 0.060 0.983<br />
Interorbital width 49 6.7 8.3 7.3 0.37 8.3 –1.424 0.082 0.991<br />
Pectoral fin length 48 18.6 24.2 21.6 1.42 23.3 –5.072 0.247 0.988<br />
Upper jaw length 49 13.3 16.3 14.2 0.61 16.3 –2.325 0.157 0.991<br />
Lower jaw length 49 16.7 19.5 18.1 0.72 19.5 –1.227 0.188 0.992<br />
Caudal peduncle depth 49 9.8 12.3 10.6 0.62 10.9 –1.467 0.116 0.983<br />
Caudal peduncle length 49 16.6 20.6 18.7 1.04 16.6 3.577 0.165 0.985<br />
Dorsal spine length 47 10.5 15.0 12.7 0.91 12.9 –1.853 0.139 0.984<br />
<strong>Kullander</strong> & Ferreira: Review of Cichla