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The species complex was first described by the ornithologist John Latham in 1790 as Psittacus banksii, [4] commemorating English botanist Sir Joseph Banks.The red-tailed black cockatoo also has the distinction of being the first bird from Eastern Australia illustrated by a European, as a female, presumably collected at Endeavour River in north Queensland, was sketched by Banks' draughtsman ...
The coloring of boa constrictors can vary greatly depending on the locality. However, they are generally a brown, gray, or cream base color, patterned with brown or reddish-brown "saddles" that become more pronounced towards the tail. This coloring gives B. constrictor subspecies the common name of "red-tailed boas." The coloring works as a ...
The body is light colored, white to silver, with vertical marks or bars and red or pink fins (e. g. dorsal, anal and tail). The vertical marks begin as bars when young and become less distinct olive-red-brown markings as the fish grows. [2] Fins of the redtail surfperch have both spines and fin rays, and the tail is moderately forked.
The term red tail may refer to the following animals: Red-tailed hawk (Buteo jamaicensis), a North American bird of prey; Red-tailed boa (Boa constrictor), a Central American snake; Red-tailed Barbel (Barbus haasi), a European barbel; Redtail catfish (Phractocephalus hemioliopterus), a South American freshwater fish
There is an elaborate scheme of nomenclature of scales. Scales patterns, by way of scale surface or texture, pattern and colouration and the division of the anal plate, in combination with other morphological characteristics, are the principal means of classifying snakes down to species level. [29]
Red drum are a dark red color on the back, which fades into white on the belly. The red drum has a characteristic eyespot near the tail and is somewhat streamlined. Three-year-old red drum typically weigh 6 to 8 pounds (2.7–3.6 kg). The largest red drum on record weighed just over 94 pounds (43 kg) and was caught in 1984 on Hatteras Island.
Etelis carbunculus is an elongated fish with a small head and a large eye, the space between the eyes is flat. The mouth extends back as far as the middle of the eye and the jaws are each equipped with a single row of conical teeth with 1 or 2 pairs of enlarged canines at the front.
The red coloration is created by blood vessels near the surface of the skin, [31] while the blue is a form of structural coloration caused by parallel arrangements of collagen fibers. [32] The blue ridges on males contrast with both the red facial hues and the green foliage of their environment, helping them stand out to other individuals. [33]