Bregmaceros cantori Milliken & Houde, 1984

(Bregmacerotidae, Gadiformes)

Ocorre no Atlântico Sul Ocidental, do Golfo do México até o sul do Brasil. Atinge 76 mm de comprimento. Espécie de hábitos pelágicos, que vive em águas afastadas da costa, comum no Sudeste do Brasil (Figueiredo et al. 2002, Bernardes et al. 2005).

The collection contains otoliths from 651 individuals of this species, ranging from 28 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 83 analysed otoliths. See more detailed data here (in portuguese).

Otoliths from Bregmaceros cantori, with total length of A. 28mm; B. 52mm; C. 73mm; 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: square to discoidal (82%), hexagonal to discoidal (18%). Anterior region: flattened-round (75%), rounded (13%), angled-round (12%). Posterior region: rounded (46%), angled-round (34%), flattened-round (20%). Dorsal edge: sinuate (86%), sinuate to entire (14%). Ventral edge: entire (76%), sinuate to entire (24%). Anterior edge: entire (59%), sinuate to entire (41%). Posterior edge: sinuate to entire (65%), sinuate (18%), entire (17%). Profile: plane-convex (65%), biconvex (35%). Rostrum and antirostrum orientation: in agreement. Rostrum: absent. Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position inframedian, orientation horizontal (69%), slightly descending (31%), opening mesial, morphology heterosulcoid, colliculum heteromorphic, ostium oval (63%), elliptic (37%), cauda elliptic.
Description of the terms used

Morphometry:

Shape indices	Mean ± sd	Minimum	Maximum
OL / TL %	3.25 ± 0.23	2.65	3.74
OH / OL %	95.55 ± 6.05	78.85	105.93
OT / OL %	27.64 ± 3.86	19.38	33.90
OT / OH %	28.82 ± 2.73	23.33	33.33
Circularity	14.98 ± 0.59	13.91	16.45
Rectangularity	0.73 ± 0.02	0.69	0.78

Description of the abbreviations used

* Vouchers:
Collection identifier for the individuals shown on photography and drawings:

14.4.BRCA.SARVII.AM.14.24 (28 mm)
14.4.BRCA.REVP.AM.337.56 (52 mm)
14.4.BRCA.REF.AM.6.5 (73 mm)

For more information about this species: