Biology of the Invertebrates
This textbook is the most concise and readable invertebrates book in terms of detail and pedagogy (other texts do not offer boxed readings, a second color, end of chapter questions, or pronunciation guides). All phyla of invertebrates are covered (comprehensive) with an emphasis on unifying characteristics of each group.

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Table of Contents

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1 Introduction and Environmental Considerations

2 Invertebrate Classification and Relationships

3 The Protists

4 The Poriferans and Placozoans

5 Introduction to the Hydrostatic Skeleton

6 The Cnidarians

7 The Ctenophores

8 The Platyhelminthes

9 The Mesozoand: Possible Flatworm Relatives

10 The Gnathifera: Rotifers, Acanthocephalans, and Two Smaller Groups

11 The Nemertines

12 The Molluscs

13 The Annelids

14 The Arthropods

15 Two Phyla of Likely Arthropod Relatives: Tardigrades and Onychophorans

16 The Nematodes

17 Four Phyla of Likely Nematode Relatives: Nematomorpha, Priapulida, Kinorhyncha, and Loricifera

18 Three Phyla of Uncertain Affiliation: Gastrotricha, Chaetognatha, and Cyliophora

19 The Lophophorates (Phoronids, Brachiopods, Bryozoans) and Entoprocts

20 The Echinoderms

21 The Hemichordates

22 The Xenoturbellids: Deuterostomes at Last?

23 The Nonvertebrate Chordates

24 Invertebrate Reproduction and Development--An Overview