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Notoplax aenigma (Iredale & Hull, 1925)

Description: Animal ovate, elongate, girdle moderately broad. Median valves with jugal area triangular, either smooth or longitudinally striate. Lateral and pleural areas not differentiated, sculptured with curved rows of elongate pustules. Girdle densely spiculose with long sutural tufts. Colour pale fawn mottled with reddish brown.

Size: Holotype 11 mm in length.

Distribution: Known from only 2 specimens (Holotype and paratype (Fig. 1)) from off Ulladulla, NSW, collected in 1924.

Habitat: Dredged in 70 fathoms (128 m). Iredale & Hull (1927, p. 77) reported the specimens were "taken alive from a block of stone brought up in a trawl".

Remarks: This species is still known only from the 2 type specimens.

Figs. 1, 2: Off Ulladulla, NSW, in 70 fathoms (128 m). (C. 148694 PARATYPE This is a dried specimen with the girdle distorted and the sutural tufts barely apparent.).


Copyright Des Beechey 2019