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Ryūkin goldfish, Plate XIX in: Goldfish and Their Culture in Japan, by Shinnosuke Matsubara. Yamagata kingyo (yamagata goldfish) or sabao (mackerel tail) or tamasaba - a hardy single-tailed variety of the ryukin that has been developed in the Yamagata Prefecture of Northern Japan.
Nymph goldfish - It is similar to the fantail, except they have a single caudal fin and anal fin. Considered a byproduct of the breeding process due to recessive genes handed down from fantail or veiltail parents. Tamasaba goldfish (or Sabao goldfish) - It is similar to the ryukin, except they have a single caudal fin and anal fin. A rare type ...
Goldfish produce pigment in response to light, similarly to how human skin becomes tanned in the sun. Fish have cells called chromatophores that produce pigments that reflect light and give the fish coloration. The color of a goldfish is determined by their diet, water quality, and exposure to light, along with age and health. [48]
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Although calico coloration occurs in many fancy goldfish varieties such as telescope eyes, fantails, ryukins, orandas, and ranchu's, the nacreous scale characteristic is usually exclusive to the shubunkins, which are single-tailed fish that are similar to the common goldfish and could grow up to 12 inches in length. [2] [3] Calico Ryukin goldfish
Jikin have a similar body shape as a wakin or a ryukin, but with a compressed, wide-angled tail that looks like the letter X when viewed from behind.. In addition other ubiquitous color variations (from red, white, and orange), jikin also have a desired pattern called rokurin, or 'Twelve Points of Red' (TPoR).
Pearlscale goldfish are susceptible to swimbladder disorders which affect the ability to maintain normal position in the water. This is attributed to the selective breeding process of fancy goldfish to achieve particular body forms, such as that of the Pearlscale's roundness, which results in the alteration of the appearance of the shape and ...
The Izumo Nankin (出雲南金) is a rare breed of goldfish native to southwestern Japan. It is very difficult to source individuals outside Japan, but Nankin are commonly available there. [ 1 ] This breed has many fanciers in its native country, with many clubs dedicated to it such as the Central Nankin Lovers Association.