Telescope (goldfish)

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Telescope goldfish
Tricolor Dragoneye.jpg
Country of origin
China
Type
Fantailed
Breed standards
BAS
An orange dragoneye goldfish

The telescope eye (Japanese: 出目金, translit. Demekin) is a fancy goldfish characterised by its protruding eyes. [1][2][3]

Description[edit]

Ranchu with telescope eyes, 1910.

Except for its enlarged projecting eyes, the demekin is similar to the ryukin and fantail. It has a deep body and long flowing fins, some with veiled fins and some with broad, or short fins, like the "China doll". Demekins are available in red, red-and-white, calico, black-and-white, chocolate, blue, lavender, kirin, chocolate-and-blue and black coloration. They may either have metallic, matted, or nacreous scales. Telescope eyes can grow quite large.[1][2]

Variants[edit]

Black Telescope[edit]

The highest quality Blackamoors have a velvety appearance, and no metallic scales.

The black telescope is a black colored variant of a telescope goldfish that has a characteristic pair of protruding eyes. Black telescopes are commonly known as Blackamoors, black moors or just moors, a reference to the black North African Muslim inhabitants of Al-Andalus.

Black telescopes are descendants of a type of wild carp known as Silver Prussian Carp or Gibel Carp, this fish is believed to originate from China in the 1400s. In the 1500s they were traded in Japan, and lastly, in the 1800s, they made their way to the USA. It is widely accepted they were a result of selective fish breeding by Chinese who first called them Dragon Fish or Dragon Eyes.[4]

A partially gold black telescope

Most telescopes have deep bodies and long, flowing finnage, with characteristic protruding eyes, but the original is fan-tailed and has a similar body to the fantail goldfish, from which they are derived.

Young black telescopes resemble bronze fantails. Their black coloration and eye protrusion develop with age. They can grow up to a length of 6-10 inches but may lose their velvet-like appearance with increasing age (lifespan: 6 to 25 years). The fish can range in coloring anywhere from a lighter grey to a dark black, but most black telescope goldfish don't stay pure black forever, and many of them change from a rust-colored underbelly to orange splotches. Because their eyes are usually large, their vision is poor. [5]

Black telescope goldfish are popular because they are hardy fish and because their black color sets them apart from the more abundant orange color. Goldfish are typically easy to care for. Black moors, in particular, are able to withstand a wide variety of temperatures. They do well with other fancy goldfish varieties, especially those with impaired vision such as the bubble eye or Celestial goldfish.

It was once theorised that the blackness in goldfish is only exhibited by the telescope-eyed goldfish and that the black color is only a permanent fixture with telescope eye goldfish. However, with the recent entry of black lionheads, black orandas, black ranchus, black ryukins, black pearlscales, black comets, black bubble eyes, black crosses of two or more goldfish, and black "hibunas", this view is no longer true.

In fact, black telescopes do sometimes throw normal-eye offsprings, and they are black also. However, they are often culled as they do not conform to the telescope eye feature for the Moor variety.

In 1941, Moscow aquarist P. Andrianov, bred a kind of black telescope with orange-red eyes.

Panda Telescope[edit]

Juvenile Panda Moor goldfish

The panda telescope is a panda variant of a telescope goldfish with a characteristic black-and-white color pattern and protruding eyes. [1][2]

Panda telescopes have protruding eyes. Young moors resemble bronze fantails and their protruding eyes gradually develop with age. They sport a velvety appearance in maturity. However, they may lose this velvet-like appearance with increasing age. They can also lose their panda coloration with age; they may become orange and white or any other color combination. Frequently panda moors will not keep any of their coloration, or they may turn pure white.

White Telescope[edit]

A white telescope goldfish

White telescope is a white variant of telescope goldfish characterized by a solid white body and protruding eyes.

The white telescope has a solid white body which contrasts black variant, black telescope goldfish which has a solid black body. White moor is a variant of telescope goldfish.

Young white telescopes resemble bronze fantails. Their brown coloration decreases and eye protrusion develops with age. They can grow up to a length of 6 inches. Because their eyes are usually large, their vision is poor.

White telescopes are less popular than black telescopes. The white telescopes, in particular, are able to withstand a wide variety of temperatures. They do well with other fancy goldfish varieties.

Other Variants[edit]

Common variations of the telescope eye

There are also red, orange and yellow telescopes.

References[edit]

  1. ^ a b c Andrews, Chris. An Interpet Guide to Fancy Goldfish, Interpet Publishing, 2002. - ISBN 1-902389-64-6
  2. ^ a b c Johnson, Dr. Erik L., D.V.M. and Richard E. Hess. Fancy Goldfish: A Complete Guide to Care and Collecting, Weatherhill, Shambala Publications, Inc., 2006. - ISBN 0-8348-0448-4
  3. ^ Bristol Aquarists' Society, Bristol Aquarists.org, United Kingdom, retrieved on: 4 June 2007
  4. ^ Black Moor goldfish
  5. ^ Goldfish info

See also[edit]

External links[edit]