Species Kathetostoma laeve

Common names: Common stargazer (barred stargazer, catfish, stonelifter)

Material

Description based on otoliths of four specimens. Specimen 1-3 of 218-395 mm TL. Otolith catalogue reference 30.91P1-3. Catch locality southern Tasmania. ID by RG. Specimen 4 of 381 mm TL. Otolith catalogue reference DMF54. Catch locality Disaster Bay, New South Wales, 80 m depth. ID by DMF.

Otolith description

Otolith medium/large ovate. Large ontogenic variation in marginal sculpturing and form of sulcus and colliculi. Dorsal margin rounded, lobed to crenate, notches in dorsal margin of larger specimens; ventral margin and posterior margin slightly rounded and irregular. Distal surface flat; proximal surface flat. Sulcus groove heterosulcoid, opening ostial to ostio-caudal. Ostium larger than cauda and shallower. Colliculum heteromorph. Crista superior well developed over cauda and neck; crista inferior well developed, ridge-like under ostium. Rostrum short, robust and rounded. Antirostrum smaller than rostrum in small specimens, but similar in size in larger specimens. Excisura absent, but shallow to deep notch present with acute angle. Dorsal area depression broad, shallow oval. Ventral area groove in larger specimens. Primordium central

Morphometry

TL = 103.647 OW 029 mm n = 10; Std Err Est = 0.183; R = 0.779; P<0.008 Otolith weight range = 24.0-230.0 mg (CMAR)

Mass = 9.531 x 10-6 TL 3149 g n = 18; Std Err Est = 0.266; R = 0.969; P<0.001; Fish length range = 172-599 mm TL (CMAR)

Distribution and ecology

New South Wales to Western Australia, and Tasmania; on sand and mud substrates; to 60 m depth; reaches 750 mm in length (May and Maxwell 1986, Gomon et al. 1994).

Predator-prey information

None cited.

Otoliths of Kathetostoma laeve from fish of 218 mm, 381 mm and 395 mm TL, figures a, b and c, respectively. Three otoliths have been included to illustrate changes with ontogeny.

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