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Columnaris (also referred to as cottonmouth and saddle-back disease) is a disease in fish which results from an infection caused by the Gram-negative, aerobic, rod-shaped bacterium Flavobacterium columnare. It was previously known as Bacillus columnaris, Chondrococcus columnaris, Cytophaga columnaris and Flexibacter columnaris. The bacteria are ...
The Florida cottonmouth (Agkistrodon conanti) is a species of venomous snake, a pit viper in the subfamily Crotalinae of the family Viperidae.The species is endemic to the United States, where it occurs in southern Georgia and the Florida peninsula in nearly every type of wetlands in the region, including brackish water and offshore islands.
A. p. piscivorus – gaping is part of the typical defensive display, the white mouth giving it the nickname "cottonmouth". A cottonmouth in water in Tennessee – the high position in the water and upward-tilted head can help distinguish it from Nerodia watersnakes such as the common watersnake, although there is substantial similarity.
Cottonmouths are one of the six venomous snakes found in North Carolina. ... mouth. The snake’s mouth is a stark contrast to the its darker colored, thick body, N.C. Park’s Bischof said ...
The origin of this nickname is unknown. The first known use of "moccasin" to refer to a deadly venomous snake was in a 1765 publication. The nickname is used to refer to both cottonmouths and copperheads. According to the Word Detective, this use may be related to their color and appearance or the silence with which they move. [10]
Cottonmouth snakes are a regular sight and hazard along the rivers, lakes, and swamps of the southeastern United States. Excellent swimmers and climbers, cottonmouths are a potential danger to ...
Sandfly species transmit the disease leishmaniasis, by acting as vectors for protozoan Leishmania species, and tsetse flies transmit protozoan trypansomes (Trypanosoma brucei gambiense and Trypansoma brucei rhodesiense) which cause African Trypanosomiasis (sleeping sickness). Ticks and lice form another large group of invertebrate vectors.
The eastern cottonmouth (Agkistrodon piscivorus piscivorus) [4] [5] was once classified as a subspecies of the cottonmouth (Agkistrodon piscivorus).However, DNA based studies published in 2008 and 2015, revealed no significant genetic difference between the eastern cottonmouth (Agkistrodon piscivorus piscivorus) and the western cottonmouth (Agkistrodon piscivorus leucostoma) and synonymized ...