200 PROCEEDINGS OF THE ACADEMY OF [1889, 



92a. Patula strigosa haydexi Gabb. (Including Hemphilli 

 Newc., gabbiana Hemphill, bruneri Ancey, wasatchensis 

 Hemphill.) Nevada, Idaho, Colorado, Utah. 



92b. Patula strigosa idahoensis Newc. (Including binneyi, 

 newcombi, castaneus, albqfasciata, gouldi and multicostata 

 of Hemphill.) Idaho ; Utah. 



(Section Discus Fitzinger.) 



93. Patula. perspectiya Say. ,Eastern U. S. 



94. Patula bryaxti Harper. Mitchell Co., X. Carolina. 



95. Patula striatella Anthony. 



95a. Patula striatella croxkhitei Newc. Klamath Valley, 

 Oregon. 



96. Patula ruderata pauper Gould. Alaska. 



97. Patula horxii Gabb. Arizona. 



(Section Ptychopatula Filsbry, 1889.) 



98. Patula c.eca Gappy. St. Augustine to Hillsborough 



River, Florida ; Hidalgo, Texas. 



99. Patula granum Strebel and Pfeffer. Alachua Co. ; Evans' 



Plantation, Rogers River ; and near Lake Worth, Florida. 



(Section Planogyra Morse, 1864.) 



100. Patula asteriscus Morse. Maine to Washington Ter. 



and Northward. 



(Section Microphysa Albers-Martens, I860.) 



101. Patula incrustata Poey. Galveston, Corpus Christi, 



and Hidalgo, Texas. 



102. Patula vortex Pfr. Southern Florida. 



103. Patula ingersolli Bid. Lawrence, Kansas; Colorado; 



Utah; Umatilla Co., Oregon. 



Subgenus HELICODISCUS Morse, 1S64. 



104. Patula lixeata Say. Entire U. S. 



105. Patula fimbriata Wetherby. Mts. of Eastern Tennessee; 



Subgenus ACANTHINULA Beck, 1837. 



106. Patula iiarpa Say. Maine to Minnesota and Northward. 



Genus xvi. PUNCTUM Morse, 1864. 



107. Puxctum PYiiJLEUM mixutissimum Lea. Entire U. S. 



108. Puxctum conspectum Bid. Monterey, Cah, to Alaska ; 



Colorado. 



