Folio (31 cm), pp. 740. Blue boards with black titling, no jacket. Includes maps, tables, black and white illustrations, and fold-out page of maps tipped in at rear pastedown. Former owner's stamp on lower board and front pastedown. Dampstaining to lower right corner of text block, light stains on front and rear boards. Scarce in the trade. Major contribution to the field of stygobiology edited by Romanian limnologist Botosaneau, who wrote seven chapters, with contributions from 65 authors. First Edition.