About Haliotis coccoradiata Reeve, 1846
The shell of Haliotis coccoradiata Reeve, 1846 varies in size between 30 mm and 75 mm. The shell is rather thin and depressed, with an overall oval shape. The distance from the apex to the shell margin is approximately one-sixth the total length of the shell. The shell surface is spirally striate, crossed by closer, finer growth striae in a decussate pattern. It has six nearly circular perforations, separated by spaces roughly as wide as the holes themselves. The shell's color pattern is yellowish or olive, marked with irregular radiating stripes of vivid scarlet. This is a rather small species, and the right margin of the shell is decidedly less convex than the left margin. The upper surface is depressed and flattened, with a spiral depression around the middle of the body whorl. In addition to its radiating scarlet stripes, the closed perforations of the shell are also scarlet, and the spire is pink. The shell surface bears numerous unequal spiral threads, decussated by distinct, close growth striae. There are also inconspicuous short folds that radiate from the suture on the earlier portion of the body whorl, and just outside the median spiral depression on the body. The inner surface of the shell is bright silvery, with green and red reflections. The nacre of the inner surface shows spiral folds. The columellar plate is flat but rather narrow, and is obliquely subtruncate at its base. The cavity of the spire is visible. This marine species is endemic to Australia, and occurs off the coasts of New South Wales, Queensland, South Australia, Tasmania and Victoria.
