THE NAUTILUS. 141 



341c. PYRAMIDULA STRIGOSA BINNEYI (Hemph.). Box Elder 

 Co., Utah. Forms cooperi, multicostata, castanea, albofasciata and 

 buttoni Hemph., same locality. Form youldi Hemph., bauks of 

 Bear River, north of Brigham City, Utah. 



341 d. PYRAMIDULA STRIGOSA (Gld.) typical. Spokane, Wash- 

 ington. Var. parma Hemphill is a synonym. 



341e. PYRAMIDULA STRIGOSA JUGALIS (Hemph.). Salmon 

 River, Idaho. Form inters urn Hemph., same locality. 



341 f. PYRAMIDULA STRIGOSA SUBCARINATA (Hemph.). Rath- 

 drum, Idaho. Includes forms subcarinata, bicolor, lactea and picta 

 Hemph. 



341g. PYRAMIDULA STRIGOSA COOPERI (W. G. B.). Colorado, 

 etc. Form globulosa Ckll., Summit Co.. trifasciata Ckll., Mesa Co., 

 confluens Ckll., Custer, Garfield and Mesa Cos., elevata Ckll., Delta 

 Co., major Ckll., Mesa Co., minor Ckll. near Egeria, Routt Co., all 

 Colorado. 



341h. PYRAMIDULA STRIGOSA IOWENSIS Pils. Loess at Iowa 

 City, Iowa (extinct). 



341i. PYRAMIDULA STRIGOSA CONCENTRATA Ball. Summits of 

 the Hachita Grande and Huachuca Mts., New Mexico and Ari- 

 zona. 



341j. PYRAMIDULA STRIGOSA HAYDENI (Gabb). Utah. Form 

 hemphilli Newc., Arizona, Nevada, Idaho, Utah and Colorado ; 

 form gabbiana Hemph., Near Salt Lake City ; form biuneri Ancey 

 (oquirrhensis Hemph.), Oquirrh Mts., Utah ; form hybrida Hemph., 

 near Logan, Utah. 



Subgenus Gonyodiscus Fitz. 



342. PYRAMIDULA PERSPECTIVA (Say). Minnesota to Texas, 

 east to the Atlantic, but wanting from the Middle States east of the 

 Allegheuies, and from New England, Canada. 



343. PYRAMIDULA BRYANTI (Harper). Mitchell Co., N. C. 



344. PYRAMIDULA STRIATELLA (Anth.). Ontario to Wiunepeg, 

 Manitoba, Montana and Vancouver Id., south to New Mexico and 

 Arizona. Kern River region, Cal. 



344a. PYRAMIDULA STRIATELLA CATSKILLENSIS Pils. Tanners- 

 ville valley, Catskill Mts. 



344b. PYRAMIDULA STRIATELLA CRONKHITEI (Newc.). Klamath 

 valley, Oregon. Nevada and California. 



