Loma fontinalis. [Descriptions of Fungi and Bacteria].
A description is provided for Loma fontinalis, which infects Salvelinus fontinalis (the brook trout, a fish of the family Salmonidae) in east-coast North America; infections developing in the host cytoplasm (but not in nerve tissues), without diplokarya, and resulting in tumours (also known as 'xenomas') in which the host nucleus is centrally located. Some information on its dispersal and transmission, habitats and conservation status is given, along with details of its geographical distribution (North America (Canada (Nova Scotia))). No evaluation has been made of any possible positive economic impact of this species (e.g. as a recycler, as a source of useful products, as a provider of checks and balances within its ecosystem, etc.), despite its only known host, S. fontinalis, being an invasive in some parts of the world.