1896 [2], 270, [1] p.; seven lithographed plates, of which four double-sized and one in chromolithography; six steel-engravings in the text, including a large map of the itinerary up and down the Bay of Biscay, 8vo (24.6 x 16.1 cm), blue buckram with gilt title on the spine. Edges speckled red. Provenance: stamp of the American malacologist Richard Irwin Johnson (1925-2020) in the top margin of the front free endpaper and title. Spine faded to olive-green; a few text leaves spotted; otherwise, a very good, clean copy. Deals with the deeper water invertebrates of the Bay of Biscay, and includes a general introduction with a description of the research vessel and its scientific instruments by the expedition leader, the French echidermatologist Jean Baptiste François René Koehler (1860-1931). The largest sections are on echinoderms (by Koehler), with four plates; shelled molluscs, by the French malacologist Étienne Alexandre Arnould Locard (1841-1904), with two plates; and nudibranchs, by their compatriot Albert Jean-Baptiste Marie Vayssière (1854-1942). Shorter chapters deal with Cephalopoda (by Louis Joubin) and Bryozoa (by Calvet), with one plate. Locard's contribution includes several Brachiopoda, and a long table, titled Récapitulation des espèces suivant leurs habitats. Several species are new. Offprint. With new pagination.