Porichthys porosissimus (Valenciennes, 1837)
(Batrachoididae, Batrachoidiformes)
The collection contains otoliths from 380 individuals of this species, ranging from 62 to 307 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 96 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Porichthys porosissimus, with total length of A. 62mm; B. 183mm; C. 307mm; internal side A1; B1; C1; external side A2; B2; C2; profile of the ventral region A3; B3; C3; click the figures for larger version*
Morphology:
Shape: elliptic (86%), cuneiform (11%), discoidal (2%). Anterior region: blunt-round (89%), oblique-round (11%). Posterior region: rounded (90%), oblique-round (10%). Dorsal edge: irregular (23%), lobed to sinuate (18%), dentate to lobed (16%), sinuate to entire (16%). Ventral edge: entire (49%), sinuate to entire (31%), lobed to sinuate (17%), lobed (3%). Profile: plane-convex. Rostrum and antirostrum orientation: not applicable. Rostrum: absent (77%), Developed (23%). Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening mesial (76%), para-ostial (15%), ostiocaudal (4%), caudal (3%), morphology heterosulcoid, colliculum heteromorphic, ostium round-oval, cauda elliptic.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.99 ± 0.27 | 3.41 | 5.06 |
OH / OL % | 86.83 ± 7.4 | 69.98 | 101.51 |
OT / OL % | 18.14 ± 2.5 | 12.00 | 24.83 |
OT / OH % | 20.90 ± 2.19 | 15.71 | 26.10 |
Circularity | 21.74 ± 3.56 | 16.83 | 34.56 |
Rectangularity | 0.67 ± 0.04 | 0.57 | 0.76 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 15.1.POPO.PI.AF.4.20 (62 mm)
- 15.1.POPO.PI.AF.8.3 (183 mm)
- 15.1.POPO.PI.AF.17.1 (307 mm)
For more information about this species: