Species Nesogobius sp1 in Last et al 1983

Common name: Girdled goby

Material

Description based on otoliths of three specimens of 32-74 mm SL. Otolith catalogue reference 30.126P54, P52 and P59. Catch locality Cremorne, southern Tasmania. ID by RG / CL.

Otolith description

Otolith discoid with rostral and pseudo-rostral projections. Dorsal margin entire; ventral margin entire in small specimens to lobed in larger. Sulcus groove heterosulcoid; opening mesial to ostial. Colliculum heteromorph and deep. Collum slight, separating ostium and cauda. Crista superior distinct and irregular; crista inferior ridge-like. Rostrum broad, very short and rounded when present. Antirostrum, if present, smaller than rostrum. Pseudo-rostrum and pseudo-antirostrum smaller than rostrum and antirostrum, respectively. Excisura shallow with near 180° angle. Pseudo-excisura shallow to indistinct with near 180° angle.

Morphometry

SL = 28.39 OL097 mm n = 65; Std Err Est = 0.090; R = 0.92;

Otolith length range = 1.3-3.1 mm (TMAG)

Mass = 3.06 x 10-6 SL 344 g n = 65; Std Err Est = 0.12; R = 0.99;

Fish length range = 33-75 mm SL (TMAG)

Distribution and ecology

Victoria, South Australia and Tasmania; common in areas of sheltered sand flats and estuaries, from intertidal to 2-3 m depth; reaches 90 mm in length (Last et al. 1983, Gomon et al. 1994).

Predator-prey information

None cited.

Otoliths of Nesogobius sp.1 from fish of 67 mm and 74 mm SL, figures a and b, respectively. Two otoliths have been included to illustrate changes with ontogeny. (Note: Some debris is present on the surface of otolith a.)

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