Chlorophthalmus agassizi Bonaparte, 1980
(Chlorophthalmidae, Aulopiformes)
The collection contains otoliths from 303 individuals of this species, ranging from 88 to 167 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 37 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Chlorophthalmus agassizi, with total length of A. 88mm; B. 167mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: oblong (92%), rectangular to oblong (8%). Anterior region: rounded (89%), oblique-round (8%), angled-round (3%). Posterior region: rounded (65%), oblique-round (19%), angled-round (14%), flattened (3%). Dorsal edge: sinuate to entire. Ventral edge: entire (70%), sinuate to entire (30%). Profile: flattened. Rostrum and antirostrum orientation: not applicable. Rostrum: absent (95%), underdeveloped (5%). Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position supramedian, orientation descending, opening ostial (97%), ostiocaudal (3%), morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like, cauda slightly curved tubular (92%), strongly curved tubular (8%).
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 2.92 ± 0.26 | 2.38 | 3.47 |
OH / OL % | 48.44 ± 3.08 | 42.24 | 57.14 |
OT / OL % | 14.21 ± 1.23 | 11.24 | 16.67 |
OT / OH % | 29.41 ± 2.55 | 21.93 | 33.52 |
Circularity | 17.51 ± 0.62 | 16.07 | 18.81 |
Rectangularity | 0.71 ± 0.03 | 0.62 | 0.78 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 9.1.CHAG.REV.AF.1135.1 (88 mm)
- 9.1.CHAG.REV.AF.1014.15 (167 mm)
For more information about this species: