Title: Our reptiles and batrachians; a plain and easy account of the lizards, snakes, newts, toads, frogs and tortoises indigenous to Great Britain
Year: 1893 (1890s)
Authors: Cooke, M. C. (Mordecai Cubitt Cooke), b. 1825
Subjects: Reptiles Amphibians
Source book page: https://archive.org/stream/ourreptilesbat00cook/ourreptilesbat00cook#page/n211/mode/1up
Source: https://commons.wikimedia.org/wiki/File:Our_reptiles_and_batrachians;_a_plain_and_easy_account_of_the_lizards,_snakes,_newts,_toads,_frogs_and_tortoises_indigenous_to_Great_Britain_(1893)_(14780857782).jpg

The leatherback sea turtle (Dermochelys coriacea), sometimes called the lute turtle or leathery turtle, is the largest of all living turtles. It can easily be differentiated from other modern sea turtles by its lack of a bony shell, hence the name. Instead, its carapace is covered by skin and oily flesh.