Malayomaorica? sp.

Plate 3, figs 6-10

Material.

Numerous right and left valves preserved as composite moulds or with remains of shell, generally strongly compacted and often fragmented, from the upper member close to Demul Pass (SNSB-BSPG 2020 XCIX 51-52).

Description and remarks.

The poorly preserved specimens are characterized by a feebly inflated right valve and a strongly inflated left valve. The height distinctly exceeds the length of the shell, which is slightly oblique, the ventralmost part being posterior of the mid-line. The anterior margin is well-rounded, the posterior margin sub-straight, the ventral margin strongly curved. The right valve anterior auricle is directed towards the left valve; the byssal notch is well-developed. The surface of the shell is covered with faint radial riblets in addition to faint commarginal growth rugae.

The different outline and the radial riblets distinguish the material from Buchia . Due to the poor preservation and lack of detailed hinge information the specimens are only tentatively placed in Malayomaorica . This is the first documentation of the genus from the Indian Himalayas.