| Ai-Goromo
(Eye-Gor-Omo) | White koi with blue/black bordered scales on the red (hi) patches. 'Ai' means indigo blue in Japanese. Ai-Goromo was developed by cross breeding a male Kohaku and a female Asagi. |  |
| Asagi
(Ass-Ah-Gee) | A blue/grey koi with red along the sides, belly and cheeks and in the fins. |  |
| Doitsu
(Doytz) | Doitsu koi are mirror carp. They have scales along the dorsal and lateral lines only. Most koi varieties have a Doitsu version, the exception being Shusui which is the Doitsu version of Asagi. Developed in germany. |  |
| Gin Matsuba
(Gin Mats-Ba) | A silver metallic koi. Each scale has a black centre giving it a pinecone effect. |  |
| Ginrin Kohaku
(Gin-Rin Ko-Hah-Coo) | The classic white koi with a red (hi) pattern but with silver metallic scales. |  |
| Goshiki
(Gosh-Key) | Goshiki means five colours. Light and dark blue, red, black and white. Goshiki were developed by cross breeding Asagi with Taisho Sanke. |  |
| Hariwake
(Harry-Way-Key) | A white metallic koi with a yellow/gold pattern. The Doitsu variety is the most popular. |  |
| Ki Utsuri
(Key Ut-Sue-Ree) | A black koi with yellow (ki) markings. The sumi should be large and extend below the lateral line. The head and pectoral fins should be patterned with sumi. |  |
| Kohaku
(Ko-Hah-Coo) | The classic white koi with a red (hi) pattern. |  |
| Kujaku
(Coo-Ja-Coo) | A white metallic koi with a red/orange pattern. Each scale has a black centre giving it a pinecone effect. |  |
| Kumonryu
(Come-On-Ree-You) | Black koi with white along the shoulder, dorsal area and along the sides above the lateral line. The pattern is not stable. |  |
| Ochiba-Shigure
(Oh-Chee-Ba She-Goo-Ray) | Ochiba-Shigure means autumn leaves on water. Blue/grey koi with a brown pattern. Developed from the Chagoi line. |  |
| Orenji Ogon
(Or-En-Gee Oh-Gone) | Orange koi with metallic scales. |  |
| Platinum Ogon
(Plat-In-Um Gh-Gone) | Pure white koi with metallic scales. |  |
| Shiro Bekko
(She-Roe Bay-Co) | Black (sumi) on a white koi. There should be no sumi on the head or below the lateral line. |  |
| Showa Sanshoku
(Sho-Wa San-Show-Coo) | A black koi with hi (red) and white pattern |  |
| Shusui
(Shoe-Suey) | Doitsu (mirror) type of Asagi. Deep blue mirror scales along both sides of the dorsal fin. Shusui were developed by cross breeding Asagi with mirror carp. |  |
| Taisho Sanke
(Tie-Show San-Key) | Red (hi) and black (sumi) on a white koi. |  |
| Tancho Kohaku
(Tahn-Cho Ko-Hah-Coo) | A white koi with a red (hi) patch on the head. |  |
| Tancho Sanke
(Tahn-Cho San-Key) | A Sanke with a red (hi) patch on the head. |  |
| Yamabuki Ogon
(Yam-A-Boo-Key Oh-Gone) | Yellow koi with metallic scales. |  |