作者: Arthur Haddleton Clarke
关键词: Ecology (disciplines) 、 Fishery 、 Biology 、 Freshwater mollusc 、 Identification (biology) 、 Ecology
摘要: A complete field guide and laboratory manual for shell collectors, with descriptions lovely watercolour illustrations of every species freshwater mollusc found in Canada. Clarke's identification keys are extremely useful tools. Clarke also deals ecology our relationship to molluscs. 1981