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Alosa fallax (Lacepède, 1803) is a polytypic species. If we consider the meristic characters four subspecies can be distinguished in the anadromous migratory form of the north-east Atlantic Ocean and of the Mediterranean Sea. 16 pp., 2 figs, stapled gr. 8.

Couverture souple. Zustand: bon. R260269440: Décembre 1991. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 157 pages. . . . Classification Dewey : 331-Métiers.

The appearance of exotic species in Mediterranean waters is not new: ever since Phoenician times have marine organisms been transported on ship hulls and in ballast water across the Strait of Gibraltar and around Mediterranean ports. But in recent history human technologies have definitely accelerated this phenomenon. Connected to the Red Sea by the sea-level Suez Canal since 1869, criss-crossed by shipping routes, encircled by harbours and mariculture farms - each providing a possible way of entry for non-native species - the Mediterranean Sea appears exceptionally vulnerable to biological invasions. This Atlas of Exotic Fishes presents and illustrated record of 91 species. The final selection emerged from a rigorous analysis, ranging from old scientific records to the most recent sightings. The quasi-totality of species is of tropical origin: roughly two-thirds from the Red Sea / Indo-Pacific domain, the others from tropical regions of the Atlantic. They cover a broad taxonomic range: 56 fish families are represented. Monaco, CIESM Publishers. 256 pp., num. color figs and distribution maps, br. gr. 8 [15 x 22 cm].

Montpellier, Naturalia Monspeliensia, 1966. 8vo (24.0 x 16.1 cm). 247 pp., 87 text illustrations, 79 tables. Original printed wrappers. = A seldom-seen illustrated monogaph of the European wrasses. Very detailed. This is an offprint, dedicated, on the half title, by the author to the Dutch marine biologist Ingvar Kristensen. With the latter's name written in the top margin of the front wrapper. Otherwise a clean, very good copy.