Notoscopelus caudispinosus (Johnson, 1863)
(Myctophidae, Myctophiformes)
The collection contains otoliths from 59 individuals of this species, ranging from 42 to 78 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 20 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Notoscopelus caudispinosus, with total length of A. 43mm; B. 78mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: elliptic. Anterior region: angled (60%), peaked (40%). Posterior region: rounded (95%), flattened (5%). Dorsal edge: lobed to entire (60%), lobed (40%). Ventral edge: lobed to sinuate (85%), sinuate (10%), lobed (5%). Profile: flattened. Rostrum and antirostrum orientation: in agreement (75%), not applicable (25%). Rostrum: underdeveloped (55%), Developed (45%). Antirostrum: underdeveloped (45%), absent (30%), Developed (25%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium tubular, cauda round-oval.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 4.62 ± 0.16 | 4.41 | 4.91 |
OH / OL % | 65.35 ± 1.43 | 63.12 | 68.61 |
OT / OL % | 16.09 ± 0.95 | 14.24 | 17.67 |
OT / OH % | 24.62 ± 1.31 | 21.97 | 26.47 |
Circularity | 15.34 ± 0.36 | 14.77 | 15.79 |
Rectangularity | 0.74 ± 0.01 | 0.72 | 0.75 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 10.2.NOCA.REVP.AM.314.27 (43 mm)
- 10.2.NOCA.REVP.AM.314.30 (78 mm)
For more information about this species: