TY - BOOK AU - Pechenik,Jan A. TI - Biology of the invertebrates / SN - 0070122040 U1 - 592 21 PY - 2000/// CY - Boston PB - McGraw-Hill KW - Invertebrates N1 - Includes bibliographical references; Brief contents 1 environmental considerations 2 invertebrate classification 3 the protozoans 4 the poriferans and placozoans 5 introduction to the hydrostatic skeleton 6 the cnidarians 7 the ctenophores 8 the platyhelminthes 9 possible flatworm relatives: the mesozoans 10 the nemertines 11 the rotifers and acanthocephalans 12 the molluscs 13 the annelids and sipunculans 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 five phyla of uncertain affiliation: myxozoa, gnathostomulida, gastrotricha, xenoturbella bocki, chaetognatha, and cyliophora 19 the lophophorates (phoronids, brachiopods, bryozoans) and entoprocts 20 the echinoderms 21 the hemichordates 22 the nonvertebrate chordates 23 invertebrate reproduction and developmentā€”an overview Glossary Index ER -