TABLE OF CONTENTS 



Page 



Introduction 7 



Technique 9 



Methods of Study 10 



Biology V 12 



Types of Localities 12 



Reactions of Worms 17 



Morphology 22 



Family Planariidae 22 



Planaria velata Stringer 1909 22 



Planaria maculata Leidy 1847 23 



Planaria triincala Leidy 1851 24 



Family Catenulidae 25 



Stenostoma leucops (Ant. Duges) 1828 26 



Stenostoma tenuicaiida von Gra£f 1911 30 



Stenostoma giganteum nov. spec 30 



Stenostoma glandifermn nov. spec 35 



Family Microstomidae 37 



Microstoma catidatiim Leidy 1852 38 



Macrostoma sensitivum Silliman 1884 39 



Macrostoma album nov. spec 39 



Family Prorhynchidae 42 



Prorhynchiis stagnalis M. Schviltze 1851 43 



Prorhynch'ds applanatus Kennel 1888 44 



Family Dalj^elliidae 45 



Dalyellia dodgei von Grafif 1911 46 



DalyelUa alba nov. spec 47 



Dalyellia megacephala nov. spec 49 



Family Tjphloplanidae 50 



Rhynchomeso stoma rostratum (Miiller) 1774 51 



Strongylostoma rosaceum nov. spec 52 



Epithelium 54 



Muscular system 57 



Parenchyma 58 



Digestive System 59 



Nervous System 60 



Excretory System 62 



Reproductive System 63 



Development 64 



Life Habits 69 



Typkloplana viridata (Abildgaard) 1789 71 



Mesostoma ehrenbergii (Focke) 1836 73 



