Ctenogobius smaragdus (Valenciennes, 1837)
(Gobiidae, Perciformes)
The collection contains otoliths from 1 individuals of this species, ranging from 45 to 45 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 1 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Ctenogobius smaragdus, with total length of A. 45mm; internal side A1; external side A2; profile of the ventral region A3; click the figures for larger version*
Morphology:
Shape: square. Anterior region: rounded. Posterior region: blunt-round. Dorsal edge: lobed to entire. Ventral edge: entire. Anterior edge: lobed. Posterior edge: entire. Profile: biconvex. Rostrum and antirostrum orientation: not applicable. Rostrum: absent. Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation ascending, opening mesial, morphology heterosulcoid, colliculum heteromorphic, ostium elliptic, cauda round-oval.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 2.56 ± 0.00 | 2.56 | 2.56 |
OH / OL % | 106.96 ± 0.00 | 106.96 | 106.96 |
OT / OL % | 29.57 ± 0.00 | 29.57 | 29.57 |
OT / OH % | 27.64 ± 0.00 | 27.64 | 27.64 |
Circularity | 15.95 ± 0.00 | 15.95 | 15.95 |
Rectangularity | 0.76 ± 0.00 | 0.76 | 0.76 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.48.CTSM.BA.PMA I.1/1.1 (45 mm)
For more information about this species: