Parasudis truculenta (Goode & Bean, 1896)
(Chlorophthalmidae, Aulopiformes)
The collection contains otoliths from 1048 individuals of this species, ranging from 91 to 296 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 88 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Parasudis truculenta, with total length of A. 91mm; B. 188mm; C. 296mm; 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 (53%), elliptic to rectangular (31%), rectangular (16%). Anterior region: peaked-round (48%), angled (16%), oblique (11%), angled-round (10%). Posterior region: rounded (52%), flattened (39%), oblique (6%), angled-round (3%). Dorsal edge: sinuate (76%), entire (18%), lobed (3%), lobed to sinuate (2%). Ventral edge: lobed to sinuate (47%), dentate to lobed (36%), lobed (11%), sinuate (6%). Profile: flattened. Rostrum and antirostrum orientation: in agreement (74%), not applicable (26%). Rostrum: Developed. Antirostrum: underdeveloped (66%), absent (26%), Developed (8%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median (93%), supramedian (7%), orientation horizontal (73%), descending (27%), opening ostial (93%), para-ostial (7%), morphology pseudo-archaesulcoid, colliculum heteromorphic, ostium funnel-like (93%), elliptic (7%), cauda straight tubular (90%), elliptic (10%).
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 1.83 ± 0.32 | 1.38 | 3.74 |
OH / OL % | 73.11 ± 5.25 | 62.08 | 88.63 |
OT / OL % | 17.63 ± 1.21 | 14.79 | 22.11 |
OT / OH % | 24.18 ± 1.76 | 19.89 | 29.94 |
Circularity | 16.99 ± 1.67 | 14.78 | 22.76 |
Rectangularity | 0.73 ± 0.03 | 0.66 | 0.78 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 9.1.PATRU.REV.AF.1014.10 (91 mm)
- 9.1.PATRU.REV.AF.1016.22 (188 mm)
- 9.1.PATRU.REV.AF.402.36 (296 mm)
For more information about this species: