Symphurus tesselatus (Quoy & Gaimard,1824)
(Cynoglossidae, Pleuronectiformes)
The collection contains otoliths from 10 individuals of this species, ranging from 103 to 218 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 17 analysed otoliths. See more detailed data here (in portuguese).
Right otolith
Otoliths from Symphurus tesselatus, with total length of A. 137mm; B. 218mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: discoidal. Anterior region: rounded (75%), angled-round (25%). Posterior region: rounded (75%), flattened (25%). Dorsal edge: entire (88%), sinuate to entire (13%). Ventral edge: entire (75%), sinuate to entire (25%). Profile: plane-convex. Rostrum and antirostrum orientation: not applicable. Rostrum: absent. Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation descending, opening mesial, morphology heterosulcoid, colliculum heteromorphic, ostium round-oval, cauda round-oval.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 1.48 ± 0.09 | 1.38 | 1.59 |
OH / OL % | 109.25 ± 2.81 | 104.35 | 112.54 |
OT / OL % | 33.18 ± 2.6 | 30.14 | 36.64 |
OT / OH % | 30.35 ± 1.92 | 27.50 | 33.07 |
Circularity | 13.52 ± 0.41 | 13.09 | 14.29 |
Rectangularity | 0.74 ± 0.02 | 0.72 | 0.77 |
Morphology:
Shape: discoidal. Anterior region: rounded. Posterior region: flattened. Dorsal edge: entire (78%), sinuate (22%). Ventral edge: entire (78%), sinuate (22%). Profile: plane-convex. Rostrum and antirostrum orientation: not applicable. Rostrum: absent. Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening mesial, morphology heterosulcoid, colliculum heteromorphic, ostium round-oval, cauda round-oval.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 1.53 ± 0.11 | 1.38 | 1.67 |
OH / OL % | 106.33 ± 2.64 | 102.33 | 110.03 |
OT / OL % | 30.34 ± 2.32 | 26.61 | 33.72 |
OT / OH % | 28.56 ± 2.44 | 24.80 | 32.95 |
Circularity | 13.20 ± 0.53 | 11.98 | 14.02 |
Rectangularity | 0.76 ± 0.01 | 0.75 | 0.77 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 26.5.SYTE.BAIII.AF.14/1.1 (137 mm)
- 26.5.SYTE.BAIII.AF.7/1.1 (218 mm)
For more information about this species: