P. lima is difficult to identify due to its similar morphology to several other Prorocentrum species with a triangular and an oval or ovoid shape (e.g. P. foraminosum, P. concavum and P. hoffmannianum). P. lima can be distinguished by its size, shape, narrow and the presence of valve and marginal .
Raymark Corporation and Asbestos. Raymark Industries were at one time a major parts manufacturer in the automotive industry. For 70 years, Raymark operated from their 33-acre site located in Bountiful, Utah, where they manufactured disk brakes, drum brakes, brake pads, brake linings and adhesives.
But once the asbestos fibers are encapsulated in other materials, they pose little danger to workers in brake, clutch or gasket manufacturing plants. There is a danger, however, to brake technicians and do-it-yourselfs who change their own brake pads and shoes because of the dust that is generated as brakes wear. As the linings wear, asbestos fibers are exposed and released as dust into the air. Some of the dust clings to brake parts and some of it is blown away.