Lymphocystivirus cause mass mortality events like megalocytiviruses and ranaviruses, fish with lymphocystis exhibit grossly visible papilloma-like skin lesions which substantially reduce their commercial value. No vaccines are currently available for lymphocystis viruses. Group: dsDNA The genus "Lymphocystivirus" has only one species: "Lymphocystis disease virus 1" (LCDV-1), but Lymphocystis disease virus 2 (LCD-2) is another virus that has been proposed as a second member. LCDV-1 infects European flounder "Platichthys flesus" and European plaice ("Pleuronectes platessa"). LCDV-2 infects the common dab ("Limanda limanda"). A third species Lymphocystis disease virus C has also been proposed based on the relative lack of sequence similarity of
Bend-Or spots Unrelated patterns may be confused with Bend-Or spots. Some roan horses have patches of darker hairs called "corn marks" or "corn spots." While these resemble Bend-Or spots, they are linked to solid-colored hair growing in over minor cuts or scratches to the skin, and thus the underlying genetic cause appears to be unrelated. Another pattern seen primarily in some gray horses is dappling, the presence of darker hairs in round shapes against a lighter hair coat. However, dapples are an intermediate stage of the graying process, and will only last a few years. These markings were named after the Thoroughbred