Reproductive Biology and Phylogeny of Chondrichthyes Sharks, Batoids and Chimaeras Volume edited by WILLIAM C. HAMLETT Volume 3 of Series: Reproductive Biology and Phylogeny Series edited by BARRIE G.M. JAMIESON Reproductive Biology and Phylogeny of Chondrichthyes Sharks, Batoids and Chimaeras Reproductive Biology and Phylogeny of Chondrichthyes Sharks, Batoids and Chimaeras Volume edited by WILLIAM C. HAMLETT Professor Department of Anatomy and Cell Biology Indiana University School of Medicine Notre Dame, Indiana USA Volume 3 of Series: Reproductive Biology and Phylogeny Series edited by BARRIE G.M. JAMIESON School of Integrative Biology University of Queensland St. Lucia, Queensland Australia Science Publishers, Inc. Enfield (NH), USA Plymouth, UK SCIENCE PUBLISHERS, INC. Post Office Box 699 Enfield, New Hampshire 03748 United States of America Internet site: http://www.scipub.net
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[email protected] (for all other enquiries) Library of Congress Cataloging-in-Publication Data Reproductive biology and phylogeny of Chondrichthyes: sharks, batoids, and chimaeras/ volume edited by William C. Hamlett. p. cm. --(Reproductive biology and phylogeny; v. 3) Includes bibliographical references and index. ISBN 1-57808-314-1 1. Chondrichthyes—Reproduction. I. Hamlett, William C. II. Series. QL638.6.R467 2005 597.3--dc22 2004065324 ISBN (Set) 1-57808-271-4 ISBN (Vol. 3) 1-57808-314-1 © 2005, Copyright reserved All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior permission. This book is sold subject to the condition that it shall not, by way of trade or otherwise, be lent, re-sold, hired out, or otherwise circullated without the publisher’s prior consent in any form of binding or cover other than that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser. Published by Science Publishers, Inc., Enfield, NH, USA Printed in India Preface to the Series This series was founded by the present series editor, Barrie Jamieson, in consultation with Science Publishers, Inc., in 1991. The series bears the title ‘Reproductive Biology and Phylogeny’ and this title is followed in each volume with the name of the taxonomic group which is the subject of the volume. Each publication has one or more invited volume editors and a large number of authors of international repute. The level of the taxonomic group which is the subject of each volume varies according, largely, to the amount of information available on the group, the advice of proposed volume editors, and the interest expressed by the zoological community in the proposed work. The order of publication reflects these concerns, and the availability of authors for the various chapters, and it is not proposed to proceed serially through the animal kingdom in a presumed phylogenetic sequence. Nevertheless, a second aspect of the series is coverage of the phylogeny and classification of the group, as a necessary framework for an understanding of reproductive biology. Evidence for relationships from molecular studies is an important aspect of the phylogenetic sections. Apart from the chapter(s) on phylogeny classification, chapters do not necessorily have a phylogenetic theme. It is not