| sarcoptic mange and pelodera dermatitis in an american black bear (ursus americanus). | an adult female free-ranging american black bear (ursus americanus) was presented in poor body condition, with advanced skin disease. skin changes included hair loss, lichenification, crusting, and focal erosions. skin scrapings and histopathology identified two distinct parasitic conditions that were contributing to this animal's dermatitis. large numbers of larvae, nymphs, and adults of sarcoptes scabiei were present in the superficial epidermis, and nematodes consistent with pelodera strongyl ... | 2008 | 18634219 |