Page:Land Mollusca of North America (north of Mexico) Vol. I Part 1 i-276.pdf/6

VI CONTENTS :::::*Subgenus Masculus
 * Subgenus Sonoranax
 * Subgenus Mytophallus
 * SUBFAMILIY HUMBOLDTIANINAE
 * Genus Humboldtiana
 * Family IV. Camaenidae
 * SUBFAMILIY OREOHELICINAE
 * Genus Oreohelix
 * Subgenus Oreohelix s.s.
 * Subgenus Radiocentrum
 * SUBFAMILIY AMMONITELLINAE
 * Genus Polygyrella
 * Genus Ammonitella
 * Genus Polygyroidea
 * Genus Glyptostoma

Part 2 (1940)

 * Title Page
 * Preface
 * Family V. Polygyridae
 * Genus Trilobopsis
 * Genus Triodopsis
 * Subgenus Crpytomastix
 * Genus Allogona
 * Subgenus Dysmedoma
 * Genus Vespericola
 * Family VI. Sagididae

INDEX