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The pattern of the eruption changes, with slow extension and often some clearing of the original lesions. Schamberg's disease, or progressive pigmented purpuric dermatosis, is a chronic discoloration of the skin which usually affects the legs and often spreads slowly. This disease is more common in males and may occur at any age from childhood ...
Catfish (or catfishes; order Siluriformes / s ɪ ˈ lj ʊər ɪ f ɔːr m iː z / or Nematognathi) are a diverse group of ray-finned fish.Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to ...
Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration.
Alfred Blaschko, a private practice dermatologist from Berlin, first described and drew the patterns of the lines of Blaschko in 1901. He obtained his data by studying over 140 patients with various nevoid and acquired skin diseases and transposed the visible patterns the diseases followed onto dolls and statues, then compiled the patterns onto a composite schematic of the human body.
Micromyzon akamai appears to have a patchy distribution. It has been found in the Amazon River basin as well as the lower Tocantins River. [2]Micromyzon akamai inhabits channels of the white-water rivers on sandy substrates at a depth of about 5–20 metres (16–66 ft).
Pseudoplatystoma is a genus of several South American catfish species of family Pimelodidae.The species are known by a number of different common names.They typically inhabit major rivers where they prefer the main channels and tend to stay at maximum depth, but some species can also be seen in lakes, flooded forests, and other freshwater habitats.
Mochokidae. Genus: Synodontis. Species: S. nigriventris. Binomial name. Synodontis nigriventris. David, 1936. Synodontis nigriventris, the blotched upside-down catfish, is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo.
The Rough-head sea catfish (Carlarius latiscutatus), also known as the marine catfish, [3] is a species of sea catfish in the family Ariidae. [4] It was described by Albert Günther in 1864. It inhabits tropical marine and brackish waters in the eastern Atlantic region, including Angola, Senegal, and Bioko. It dwells at a depth range of 0 to 70 ...