Hello the only reference I find is the following in my database.
Morton, B. (1979). A comparison of lip structure and function correlated with other aspects of the functional morphology of Lima lima, Limaria (Platilimaria) fragilis, and Limaria (Platilimaria) hongkongensis sp. nov.(Bivalvia: Limacea). Canadian Journal of Zoology, 57(4), 728-742.