Caulolatilus chrysops (Valenciennes, 1833)
(Malacanthidae, Perciformes)
The collection contains otoliths from 6 individuals of this species, ranging from 283 to 469 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 4 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Caulolatilus chrysops, with total length of A. 283mm; B. 469mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: rectangular. Anterior region: peaked-round (50%), rounded (25%), peaked (25%). Posterior region: rounded (75%), flattened (25%). Dorsal edge: lobed to entire (50%), dentate to sinuate (25%), dentate to crenate (25%). Ventral edge: dentate to sinuate (50%), lobed to sinuate (50%). Profile: concave-convex. Rostrum and antirostrum orientation: in agreement. Rostrum: Developed. Antirostrum: Developed. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation descending (50%), horizontal (50%), opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like, cauda strongly curved tubular (75%), markedly curved tubular (25%).
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 1.94 ± 0.17 | 1.79 | 2.17 |
OH / OL % | 45.66 ± 2.45 | 43.58 | 48.79 |
OT / OL % | 17.51 ± 2.03 | 15.12 | 19.98 |
OT / OH % | 38.26 ± 2.6 | 34.70 | 40.94 |
Circularity | 24.02 ± 3.96 | 20.75 | 29.68 |
Rectangularity | 0.76 ± 0.03 | 0.73 | 0.79 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.8.CACH.REV.AF.1132.1 (283 mm)
- 25.8.CACH.REV.AF.1133.3 (469 mm)
For more information about this species: