Ventrifossa macropogon Marshall, 1973
(Macrouridae, Gadiformes)
Ocorre no Atlântico Tropical Ocidental, desde a Florida até o sul do Brasil, na Austrália e em águas antárticas. Atinge 450 mm de comprimento. É uma espécie bentopelágica que vive no talude continental entre 320 e 1000 m de profundidade, geralmente entre 500 e 600 m (Bernardes et al. 2005).
The collection contains otoliths from 171 individuals of this species, ranging from 164 to 389 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 67 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Ventrifossa macropogon, with total length of A. 164mm; B. 277mm; C. 387mm; 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. Anterior region: oblique-round (57%), oblique to angled-round (33%), oblique to peaked-round (9%), angled-round (1%). Posterior region: oblique-round (84%), oblique to blunt-round (15%), rounded (1%). Dorsal edge: lobed to sinuate (33%), sinuate to entire (31%), sinuate (30%), lobed to entire (6%). Ventral edge: lobed to sinuate (51%), sinuate (25%), sinuate to entire (24%). Profile: biconvex. Rostrum and antirostrum orientation: in agreement. Rostrum: underdeveloped. Antirostrum: underdeveloped (78%), Developed (18%), absent (4%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position supramedian, orientation slightly ascending (67%), horizontal (33%), opening para-ostial (52%), ostiocaudal (39%), ostial (6%), pseudo-ostiocaudal (3%), morphology homosulcoid, colliculum homomorphic, ostium elliptic, cauda elliptic.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.28 ± 0.23 | 2.50 | 3.85 |
OH / OL % | 63.10 ± 3.74 | 56.31 | 73.39 |
OT / OL % | 19.98 ± 1.32 | 17.65 | 25.29 |
OT / OH % | 31.71 ± 1.98 | 27.92 | 37.61 |
Circularity | 16.23 ± 0.73 | 14.46 | 18.73 |
Rectangularity | 0.72 ± 0.02 | 0.66 | 0.79 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 14.1.VEMA.REV.AF.614.11 (164 mm)
- 14.1.VEMA.REV.AF.607.20 (277 mm)
- 14.1.VEMA.REV.AF.607.17 (387 mm)
For more information about this species: