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Dentimargo gabrieli (May, 1911)

Diagnosis: Shell small, white, occasionally with pale fawn bands, biconic; spire medium height; aperture moderately broad; lip thickened, smooth internally; external varix present; siphonal notch absent; posterior notch absent; columella with four strong plaits occupying more than half the aperture.

Size: Adults 4 mm in length.

Distribution: Australian Museum Collection: Port Macquarie, NSW, to Great Australian Bight , WA , including Tasmania , in 64-186 metres.  Moderately common.

Comparison: This is this smallest member in this genus in NSW.  Mesoginella sinapi is similar but smaller.

Synonymy: Marginella parsobrina Laseron, 1948 (NEW SYNONYM) is based on a specimen of this species.

Remarks: Figs. 1a and 1b are shells of typical shape for the species.  Fig. 2 shows a more elongate shell from off  Brush Island, NSW, in 165 metres, which may be this species.  Such elongate shells are known uncommonly from central NSW, in depths of 150-200 metres.

Fig. 1a: Sussex Inlet, NSW, in 9 m (C.022451)

Fig. 1b: Paratype. Off Cape Pillar, Tasmania, in 100 fathoms (183 m) (C.028950)

Fig. 2: Off Brush Island, NSW, in 150-200 m (C.316074)


Copyright Des Beechey 2003