Shubunkin of age, even though they live much longer. Blue colouring in goldfish comes from black pigment within the body wall. It will not show as blue in fish with metallic type scales, but will look blue if the fish has matte or nacreous scales. The nacreous (formerly called calico) scale type is produced in a fish that carries the gene for metallic scales, as well as the gene for matte scales (the fish is heterozygous). Only nacreous scales are accepted by the Shubunkin breed standards. Shubunkin The Shubunkin was created by Yoshigoro Akiyama （, by crossing Calico telescope eye with
A Kind of Anger subversive and amoral tone. Although comic in overall intention, the plot of the novel is rooted in historical and political realities, namely the troubled history of the Kurds. This is explained at some length in the novel, from the post-Great War Treaty of Sèvres onwards. Mention is also made of the 1958 coup which overthrew the monarchy to create the republic of Iraq. Situating the plot in this political context gives the novel a sense of urgency and reality. A Kind of Anger A Kind of Anger is a novel by British thriller writer Eric Ambler, first published in 1964.