CONTENTS. 



Page 



The Herpetology of Michigan H 



General Introduction, by Alexander G. Ruthven 11 



The Amphibians of Michigan, by Crystal Thompson and Helen Thompson 13 



Introduction 13 



Literature 13 



Methods of Study 16 



Methods of Collecting and Preserving Specimens 18 



Collecting 18 



Keeping Live Material .^ 19 



Preservation of Specimens 19 



Description of Species 20 



Key to Michigan Amphibia 20 



Necturus maculosus 23 



Ambystoma tigrinum 26 



Ambystoma punctatum 28 



Ambystoma jeffersonianum 30 



Plethodon erythronotus 32 



Hemidadylium scutatum 34 



Diemictylus viridescens 36 



Bufo americanus 39 



Hyla versicolor 41 



Hyla pickeringii 43 



Acris gryllus 45 



Chorophilus nigritus 47 



Rana pipiens 49 



Rana palustris 51 



Rana clamitans 53 



Rana cantabrigensis 55 



Rana septentrionalis 57 



Rana catesbeana 59 



Glossary 61 



The Reptiles of Michigan, by Alexander G. Ruthven 63 



Introduction 63 



Lit ^rature 63 



Methods of Study 67 



Methods of Collecting and Preserving Specimens 74 



Collecting 74 



Cages 74 



Preservation of Specimens 75 



Description of Michigan Reptiles 76 



Class Reptilia 76 



Keys to the Orders and S.uborders of Michigan Reptiles 77 



Order Squamata — Suborder Sauria (Lizards) 77 



Key to the Genera and Species of Michigan Lizards 77 



Eumeces quinqidhneatus 77 



Order Squamata — Suborder Serpentes (Snakes) 81 



Key to the Snakes of Michigan 81 



Storeria dekayi 83 



Storeria occipitomaculala 85 



Heterodon platyrhinu< 87 



Elaphe obsoletus 90 



Elaphe vulpinus 93 



Natrix sipedon 95 



Regi a lebcris 98 



Clonophis kirtlandii 100 



Liopeltis vernalis 102 



Diadophis pundatus 104 



Bascanion constridor 107 



Lampropeliis doliatus triangulus 110 



