64 
THE NAUTILUS. 
The occurrence of Pupa syngenes Pils., previously known only 
from Arizona, and of Planorbis umbilicatellus Ckll., described and 
reported only from Manitoba, are especially interesting. Many of 
the forms were identified at the National Museum by Messrs. Dali 
and Simpson, while Dr. Sterki has kindly named the Pupidce and 
Vallonias. Mingusville is two thousand six hundred and forty-five 
feet above sea level. 
HELICACEA. 
Family ZONITIDJE. 
Vitrea arborea Say; worn var., approaching V. breweri Newc. 
Vitrea radiatula Alder, rare. 
Conulus fulvus Drap., one specimen. 
Pseudohyalina minuscula Binn. 
Pseudohyalina Iceviuscula f Sterki. Close to vars. of minuscula. 
Pseudohyalina conspeda Bland. 
Family ENDODONTIDJE. 
Pyramidula striatella A nth. 
Family HELICID2E. 
Vallonia gracilicosta Reinh. 
V. gracilicosta var. close to costata Say. 
Vallonia perspediva Sterki. 
Vallonia pulchella Mull. 
Family PUPID.E. 
Pupa muscorum L. 
Pupa blandi Morse. 
Pupa blandi var. edentata; one specimen. 
Pupa syngenes Pilsbry. Eight more or less perfect specimens. 
Pupa holzingeri Sterki. 
Pupa armifera Say. 
Pupa pentodon Say. 
Pupa decora Gould. 
Vertigo ovata Say. 
Vertigo binneyana Sterki. 
SUCCINEACEA, 
Family SUCCINEIDJE. 
Succinea avara Say. 
Sucdnea obliqua Say. 
