Kyndalynia inflata n.sp.

PI. 12 figs 6-11

Description. Shell minute, cyrtoconoidal, widely phaneromphalous. Protoconch of 1Y2 smooth whorls with slightly deviated bulbous apex, boundary with teleoconch sharp. Teleoconch with first whorl with fine growth line, followed by 2Y2 rounded whorls with evenly spaced collabral riblets with about 32 in the last whorl, spire outline very convex, suture impressed. Aperture circular, lips slightly thickened, with outer lip prosoc1ine.

Types. Holotype (F78440) and 4 figured paratypes (F78441 -3). There are 14 unfigured additional specimens (F78444) from the type locality .

Type locality. Behind 'Kyndalyn' homestead, 10 km south-west of Somerton, NSW (Locality 24).

Stratigraphic position. In base of oolitic limestone in the Kyndalyn Mudstone Member of the Merlewood Formation.

Geographic distribution. Type locality only.

Geological age. Middle or late Visean.

Etymology. Derived from the Latin inflatus meaning swollen; referring to inflated whorls.

Remarks. This species is characterised by having very inflated whorl profile. This is relatively rare in the type locality. No other Australian form has so far been referred to this genus.