Sphoeroides greeleyi Gilbert, 1900

(Tetraodontidae, Tetraodontiformes)

The collection contains otoliths from 69 individuals of this species, ranging from 51 to 145 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 23 analysed otoliths. See more detailed data here (in portuguese).

Otoliths from Sphoeroides greeleyi, with total length of A. 78mm; B. 145mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*

Morphology:
Shape: hourglass (87%), trapezoidal to elliptic (13%). Anterior region: double-peaked-round (52%), double-peaked (43%), angled-round (4%). Posterior region: double-peaked-round (61%), oblique to angled (22%), oblique-round (17%). Dorsal edge: entire (61%), lobed (39%). Ventral edge: entire (61%), sinuate to entire (39%). Profile: plane-convex. Rostrum and antirostrum orientation: in agreement. Rostrum: Developed (96%), underdeveloped (4%). Antirostrum: underdeveloped (74%), Developed (26%). Pseudorostrum: Developed (74%), underdeveloped (22%), absent (4%). Pseudoantirostrum: underdeveloped (74%), absent (26%). Sulcus acusticus: position median, orientation horizontal, opening ostiocaudal, morphology homosulcoid, colliculum homomorphic, ostium funnel-like, cauda funnel-like.
Description of the terms used

Morphometry:

Shape indices	Mean ± sd	Minimum	Maximum
OL / TL %	1.05 ± 0.12	0.74	1.26
OH / OL %	89.63 ± 5.72	80.95	105.06
OT / OL %	39.18 ± 4.43	32.11	49.37
OT / OH %	43.69 ± 3.83	36.08	51.76
Circularity	17.91 ± 4.63	14.00	33.33
Rectangularity	0.65 ± 0.05	0.52	0.71

Description of the abbreviations used

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

27.4.SPGR.BAI.PC.2/1.6 (78 mm)
27.4.SPGR.BAI.PC.1/1.1 (145 mm)

For more information about this species: