Evoxymetopon taeniatus Gill, 1863
(Trichiuridae, Perciformes)
The collection contains otoliths from 22 individuals of this species, ranging from 512 to 1760 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 10 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Evoxymetopon taeniatus, with total length of A. 512mm; B. 1640mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: fusiform to lanceolated. Anterior region: lanceolated. Posterior region: peaked-round. Dorsal edge: sinuate to entire (80%), lobed to sinuate (20%). Ventral edge: lobed to sinuate (60%), sinuate to entire (30%), dentate to sinuate (10%). Profile: flattened. Rostrum and antirostrum orientation: in agreement. Rostrum: Developed. Antirostrum: Developed (80%), underdeveloped (20%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like (80%), tubular (20%), cauda straight tubular.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 0.48 ± 0.09 | 0.43 | 0.71 |
OH / OL % | 34.24 ± 1.77 | 32.02 | 37.50 |
OT / OL % | 12.91 ± 1.2 | 11.18 | 14.68 |
OT / OH % | 37.67 ± 2.48 | 33.62 | 41.13 |
Circularity | 26.45 ± 2.34 | 23.04 | 30.81 |
Rectangularity | 0.66 ± 0.02 | 0.63 | 0.69 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.56.EVTA.OGX2.AM.BMS57/2.2 (512 mm)
- 25.56.EVTA.REV.AF.603.2 (1640 mm)
For more information about this species: