TABLE OF CONTENTS. 



Page. 



Introduction 1 



Phylogenetic development of the Miliolidae 1 



Family 10. Miliolidae 23 



Subfamily 1. Cornuspirininae 24 



Genus Cornuspira 24 



foliacea 24 



involvens 25 



lacunosa 26 



Genus Opthalmidium 27 



inconstans 28 



tumidulum 28 



Genus Spiroloculina 29 



depressa 29 



canalieulata 30 



grateloupi 31 



acutimargo 31 



tenuimargo 32 



tenuissima 32 



robusta 33 



milletti 33 



nuda '. 34 



costifera 34 



unicostata 35 



grata 35 



var. angulata 36 



arenaria 36 



Genus Planispirina 37 



sphaera 37 



Genus Vertebralina 37 



striata 38 



insignis 39 



Genus Nodobacularia 39 



tibia 39 



irregularis 40 



Genus Nubecularia 40 



lucifuga 41 



bradyi 41 



Subfamily 2. Quinqueloculininae 41 



Genus Quinqueloculina 42 



agglutinans 42 



alveoliniformis 43 



agglutinata 43 



subarenaria 44 



arenacea 44 



seminulum 44 



procera 45 



v 



