Synagrops bellus (Goode & Bean, 1896)
(Acropomatidae, Perciformes)
The collection contains otoliths from 1277 individuals of this species, ranging from 79 to 290 mm of total length. Click here to see the map of the sampling area for the individuals of this species. The following summaries contains data from 98 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Synagrops bellus, with total length of A. 79mm; B. 177mm; C. 290mm; internal side A1; B1; C1; external side A2; B2; C2; profile of the ventral region A3; B3; C3; click the figures for larger version*
Morphology:
Shape: trapezoidal to elliptic (53%), trapezoidal (35%), elliptic (12%). Anterior region: peaked. Posterior region: oblique (43%), oblique-round (33%), rounded (21%), flattened (3%). Dorsal edge: lobed to sinuate (58%), sinuate to entire (42%). Ventral edge: sinuate to entire (57%), lobed to entire (36%), serrate to entire (4%), dentate to entire (3%). Profile: concave-convex. Rostrum and antirostrum orientation: in agreement. Rostrum: underdeveloped. Antirostrum: underdeveloped. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation ascending (95%), horizontal (5%), opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like, cauda bent tubular (62%), markedly curved tubular (38%).
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.34 ± 0.65 | 1.71 | 4.87 |
OH / OL % | 63.15 ± 2.54 | 56.20 | 68.23 |
OT / OL % | 18.22 ± 1.07 | 15.02 | 20.51 |
OT / OH % | 28.90 ± 1.99 | 24.71 | 34.07 |
Circularity | 17.33 ± 0.64 | 16.16 | 19.18 |
Rectangularity | 0.68 ± 0.02 | 0.62 | 0.72 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.2.SYBE.REVP.AM.231.11 (79 mm)
- 25.2.SYBE.REV.AF.1141.13 (177 mm)
- 25.2.SYBE.REV.AF.1128.1 (290 mm)
For more information about this species: