Helicolenus lahillei Norman, 1937

(Sebastidae, Scorpaeniformes)

The collection contains otoliths from 339 individuals of this species, ranging from 61 to 462 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 96 analysed otoliths. See more detailed data here (in portuguese).

Otoliths from Helicolenus lahillei, with total length of A. 75mm; B. 260mm; C. 462mm; 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 (79%), fusiform (11%), elliptic to lanceolated (5%), fusiform to lanceolated (4%). Anterior region: peaked (91%), lanceolated (9%). Posterior region: rounded (32%), oblique-round (26%), flattened (17%), peaked (13%). Dorsal edge: entire (45%), sinuate (41%), lobed (8%), lobed to sinuate (6%). Ventral edge: sinuate (39%), lobed to sinuate (35%), serrate to entire (15%), entire (11%). Profile: concave-convex. Rostrum and antirostrum orientation: in agreement (60%), not applicable (40%). Rostrum: Developed (98%), absent (2%). Antirostrum: underdeveloped (60%), absent (40%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position inframedian (67%), median (33%), orientation horizontal, opening ostial (93%), para-ostial (5%), pseudo-ostial (2%), morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like (90%), elliptic (10%), cauda straight tubular (52%), slightly curved tubular (48%).
Description of the terms used

Morphometry:

Shape indices	Mean ± sd	Minimum	Maximum
OL / TL %	4.08 ± 0.5	2.78	5.38
OH / OL %	53.44 ± 2.69	46.35	60.19
OT / OL %	14.64 ± 2.2	11.62	23.15
OT / OH %	27.46 ± 4.4	21.72	44.23
Circularity	18.07 ± 1.73	15.82	24.49
Rectangularity	0.66 ± 0.02	0.59	0.70

Description of the abbreviations used

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

24.7.HELA.REV.AF.1020.14 (75 mm)
24.7.HELA.REV.AF.1017.2 (260 mm)
24.7.HELA.REV.AF.402.1 (462 mm)

For more information about this species: