1016.] NATURAL SCIENCES OF PHILADELPHIA. 327 



Suceinea avara Say. 



Thysanophora ingersolli (Bland). 



Agriolimux aimpc.slris (Binney). 



It may be well to add that this canyon is the type locality of 

 Vertigo corpulenta parietalis (Ancey), and that Hemphill's Patula 

 striatella from here is probably Pyramidula cronkhitei anthonyi Pils. 



Oreohelix strigosa buttoni (Hemph.). ?. PI. XVI, fig. 2. 



Patula sir it/"*' ' var. buttonii Hemphill, in Binney's 3rd Suppl. to 5th Vol. 

 Terr. Moll. U. S., p. 220, 1S90, Box Elder Co., Utah. Binney, 4th Suppl. 

 5th Vol. Terr. Moll. V. S., p. 171, PI. I, Bgs. 2 and 10, 1892. 



Stations 16, 17, 18 and 19, Taylor Canyon, near Ogden, south of 

 Ogden Canyon, under poison ivy, elderberry, mountain maple and 

 other shrubbery about limestone ledges, the farthest station being 

 about half a mile up the canyon, and 19 being just outside the canyon 

 and to the south, at an old lime kiln. Color light brown to nearly 

 white, color bands from very faint to strong, varying somewhat in 

 width. 



Sta. 24, half hour's walk below Gateway, in Weber Canyon, 

 southeast of Ogden, Utah, on south side of canyon in gneiss slide rock, 

 no limestone seen, and another similar slide half a mile farther down. 



Sta. 25, about half mile above mouth of Weber Canyon, south 

 side, south of canal, 400 to 500 yards below Utah Light and Railway 

 Co.'s power plant, in a similar slide. 



Dr. Pilsbry has examined material from all these stations except 

 19, and identified it as above. Many examples have strong spiral 

 color bands, and nearly all from 17 have. Otherwise they agree 

 well with those under this name in Clapp's Hemphill collection. 

 The tooth on the columellar margin is very often absent. 



At Sta. 17 we also found Vitrina alaskana Dall. 



Oreohelix peripherica (Ancey). PI. XV, fig. l. 



Sta. 26, west side of gulch which comes into North Ogden Canyon 

 half a mile or so above its mouth, abundant in scrub oak and other 

 brush on hard sandstone and conglomerate overlaid by limestone, 

 but not found in rock slide. This species and its varieties are more 

 fully discussed under the Cache Junction District. At Sta. 26 the 

 specimens collected average larger and smoother, but present the 

 usual variation in size, as well as in the coarseness of sculpture and 

 elevation of the spire. Many are plain, others with two narrow- 

 bands, either faint (especially on the last whorl) or well-marked. 

 but none here with the broad, nearly black bands and white periphery 

 of the albofasciata type, though some show a very slight tendency in 



