Course Description: Aspects of the diversity, comparative and functional morphology, natural history, evolution, and water-land transitions of invertebrates exclusive of arthropods. Three hours of lecture and one three-and-one-half hour laboratory per week.

The course considers the natural history, comparative morphology and evolution of the multicellular invertebrates (exclusive of arthropods which need half of my spring course, Bio 346). Feeding, defense, respiration, locomotion (or attachment), reproduction, and modes of development are particularly emphasized. Stress is placed on major groups of benthic marine invertebrates, but we do consider some, planktonic fresh water and terrestrial animals.

The course is excellent preparation for Bio 353, Marine Ecology and helpful for Mar 320, Limnology.

Some groups are studied in detail, so we will examine upwards of twenty kinds of snails rather than a "representative" one or two examples.

Students who have not done Bio 344 or 346, and who wish a broader overview, covering protozoans, arthropods and vertebrates, should consider switching to my Bio 340 Zoology.

Prerequisite: BIO 201 or MAR 104

Credit Information: 4

Assignments: