IV CONTENTS 



Page 



Family Calcarinidae 36 



Genus Calcarina 36 



Genus Baculogypsina 36 



Family Cymbaloporidae 37 



Genus Cymbaloporetta 37 



Genus Cymbaloporella 38 



Genus Tretomphalus 39 



Family Cassidulinidae 40 



Genus Cassidulina 40 



Genus Islandiella 46 



Genus Cassidulinoides 46 



Genus Ehrenbergina 47 



Family Chilostomellidae 48 



Genus Pullenia 48 



Genus Sphaeroidina 49 



Family Anomalinidae 49 



Genus Anomalina 49 



Genus Anomalinella 50 



Genus Laticarinina 51 



Genus Planulina 51 



Genus Cibicides 52 



Genus Cibicidella 54 



Family Planorbulinidae 54 



Genus Planorbulina 54 



Genus Planorbulinella 55 



Genus Acervulina 55 



Genus Gypsina 55 



Family Ceratobuliminidae 56 



Genus Hoeglundina 56 



Genus Ceratobulimina 57 



Genus Geminospira 57 



Planktonic Families 



Family Globigerinidae 58 



Genus Globigerina 58 



Genus Globigerinoides 62 



Genus Globigerinella 64 



Genus Globigerinita 66 



Genus Orbulina 67 



Genus Pulleniatina 67 



Genus Sphaeroidinella 67 



Genus Candeina 68 



Genus Hastigerina 68 



Family Globorotaliidae 69 



Genus Globorotalia 69 



Literature cited 118 



Index 131 



