142 THE NAUTILUS. 
Subgenus Planogyra Morse, 1864, 
345, PyRAMIDULA ASTERISCUS (Morse). Quebec, Ont. and Maine 
(to Vancouver Island ?). 
Genus HELICODISCUS Morse, 1864. 
346. Hexicopiscus LingaTus (Say). Ontario and Quebec to 
Florida, west to Rio Chama and White Oaks, New Mexico. 
347. HELIcopIscUs FIMBRIATUS Wetherby. Tellico Plains, Tenn. 
A variety is reported from Indian Territory. 
Subfamily Punctinee ( Vel Polyplacognatha). 
Genus PUNCTUM Morse. 
348. puNctum PyGmMaum (Drap.). Quebec, Manitoba and 
northern States; Texas; California, Vancouver Id. 
349. PuNcTUM RANDOLPHII (Dall). Seattle, Washington. 
390. PunctuM consPEcTUM (Bld.). Middle California to Van- 
couver Id. and Sitka. 
350a. PUNCTUM CONSPECTUM PASADEN Pils. Pasadena, Cali- 
fornia. 
391. Puncrum cLapP! Pilsbry. Seattle and Tacoma, Washington ; 
Salem, Oregon. 
352. PUNCTUM CALIFORNICUM Pilsbry. Fish Camp, Fresno Co. 
Cal. 
Genus SPHYRADIUM Charp. 
393. SPHYRADIUM EDENTULUM (Drap.). Ontario to Vancouver 
Id. Vertigo simplex Gld._ A longer cylindrical form, a/ticola Inger- 
soll, occurs in the Rocky Mts., Colorado, ete., and Mississippi valley 
Loess. 
(Superfamily ELASMOGNA THA.) 
Family SUCCINEIDZ. 
Genus SUCCINEA Drap. 
(Amphibine.) 
(The species of this section are variable and extremely difficult to 
define from the shells alone, and the soft anatomy is as yet practic- 
ally unknown). 
354. SuccCINEA SALLEANA Pfr. New Orleans and Alexandria, 
La.; Gloucester, N. J. 
355. SuccineEA EFFuSA “Shutt.” Pfr. Florida. 
