UNIVALVES. — HALIOTIS. 125 



bright iridescent colors, which are finely contrasted with 

 a green and gold bronze-like lustre. The H. gigantea, 

 from New Holland, sometimes exceeds a foot in length. 



Two species are found in a fossil state : the H. perversa, 

 and the H. plicata, the latter near Hildesia. 



The Haliotides are found on the shores of Europe, 

 Africa, and India; where, like the limpets, they adhere to 

 the rocks, from which they are with difficulty removed. 



HALIOTIS.— ^ym Ear. 



Midae — Midm's. Guineensis — Guinea. 



* Tuberculata — Common. Imperforata — Imperforated. 



Striata — Striated. Perversa — Revei'se-spire. 



Varia — Rough-striated. Plicata — Plaited. 



Marmorata — Marbled. Glabra — Smooth-mottled. 



Asinum — Ass^s. Pulcherrima — Byron. 



Parva — Small orange. Virginea — Iridescent. 



Bistriata — Double-lined. Ovina — Chesnut. 



Australis — Quilted. Gigantea — Gigantic. 

 Iris — Iris's. 



