Note 70 — Chapter IX · GEOGRAPHY OF RED SEA AND FOUNDATIONS OF THE REEF SYSTEMS
Reading edition
Actually many of these shells retain some of their colour! e.g. the red of the common Spondylus, the bands of Strombus fasciatus and the mottlings of Cyprina tigrina are quite distinct on some specimens from 100 feet above, and on others dug out 15 feet below sea level.