TABLE OF CONTENTS 



PAGE 



PREFACE v 



TABLE OF MAGNIFICATIONS xi 



LIST OF THINGS TO BE FURNISHED BY THE LABORATORY xii 



LIST OF THINGS TO BE FURNISHED BY THE STUDENT xiii 



PARAM^CIUM CAUDATUM EHRENBERG i 



GRANTIA CILIATA FABRICIUS 10 



PENNARIA TIARELLA MCRADY 16 



SERTULARIA PUMILA LINN^US 23 



TlMA FORMOSA L. AGASSIZ 27 



GONIONEMUS MURBACHII MAYER 33 



AURELIA AURITA (L.) VAR. FLAVIDULA PERON ET LESUEUR. . . 35 



METRIDIUM MARGINATUM MILNE-DWARDS 45 



DENDROCCELUM LACTEUM (MULLER) 55 



DlCROCCELIUM LANCEATUM STILES AND HASSALL 62 



T^ENIA SAGINATA GOEZE 7 2 



ASCARIS LUMBRICOIDES LlNN^EUS VAR. SUILLA 79 



LUMBRICUS TERRESTRIS L. MULLER 88 



NEREIS VIRENS SARS 97 



HlRUDO MEDICINALIS LlNN^EUS IO5 



DAPHNIA PULEX MULLER 113 



HOMARUS AMERICANUS MlLNE-ED WARDS 122 



SCHISTOCERCA AMERICANA DRURY 145 



AGELENA N^VIA WALCKEN^R 158 



ASTERIAS FORBESI (DESOR) 1 74 



OPHIOPHOLIS ACULEATA (LINN^US) 183 



PENTACRINUS ASTERIA (CAPUTMEDUS^E) (MULLER) 189 



ARBACIA PUNCTULATA (LAMARCK) 19 l 



THYONE BRIAREUS (LESUEUR) 202 



VENUS MERCENARIA LlNN^US 2o8 



LlMAX MAXIMUS LlNN^US 22O 



LOLIGO PEALII LESUEUR 231 



MOLGULA MANHATTENSIS (DE KAY) 256 



ix 



