Ctenogobius boleosoma (Jordan & Gilbert, 1882)
(Gobiidae, Perciformes)
The collection contains otoliths from 439 individuals of this species, ranging from 12 to 55 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 30 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Ctenogobius boleosoma, with total length of A. 17mm; B. 55mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: square (70%), discoidal (30%). Anterior region: flattened (47%), rounded (37%), blunt (10%), angled-round (7%). Posterior region: blunt-round (63%), rounded (23%), oblique-round (13%). Dorsal edge: entire (73%), sinuate to entire (23%), sinuate (3%). Ventral edge: entire (97%), sinuate to entire (3%). Anterior edge: entire (57%), (30%), sinuate to entire (13%). Posterior edge: entire (70%), (30%). Profile: plane-convex. 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 round-oval, cauda elliptic (60%), round-oval (40%).
Description of the terms used
Morphometry:
| Shape indices | Mean ± sd | Minimum | Maximum |
|---|---|---|---|
| OL / TL % | 3.59 ± 0.45 | 2.70 | 4.47 |
| OH / OL % | 97.12 ± 6.25 | 84.09 | 108.70 |
| OT / OL % | 31.19 ± 5.31 | 24.06 | 39.62 |
| OT / OH % | 31.96 ± 3.93 | 26.45 | 39.29 |
| Circularity | 13.40 ± 2.38 | 1.15 | 15.01 |
| Rectangularity | 0.79 ± 0.02 | 0.73 | 0.82 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.48.CTBO.BA.PMA II.4/1.48 (17 mm)
- 25.48.CTBO.BA.PMA I.5/1.5 (55 mm)
For more information about this species: