Ledella rhomboidea is an extinct species of marine bivalve mollusk in the family Nuculanidae.MolluscaBase eds. (2023). MolluscaBase. Ledella rhomboidea (May, 1922) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1635210 on 2023-11-09
Description The length of the shell attains 2 mm, its diameter 1.3 mm.
(Original description) The shell is minute, smooth, white and shining. It is rhomboidal, rounded in front, narrowly produced behind into a short beak. The hinge line is arcuate, bearing arrow-shaped teeth, strong on the anterior slope, but less so posteriorly.May, W.L. (1922) New species of fossil shells from Table Cape. Papers and Proceedings of the Royal Society of Tasmania, 1921, 9–12, pl. 4.
Distribution This extinct marine species is endemic to Tasmania and were found in Tertiary strata.
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