$1.00 per Year. 
/&, 
NAUTILUS 
A MONTHLY 
DEVOTED TO THE INTERESTS 
OF CONCHO LOG1STS. 
EDITOR : 
H. A. Pilsbry, Conservator Conchological Section, Academy of Natural Sciences, Philadelphi*. 
ASSOCIATE EDITOR : 
C. W. Johnson, Curator of the Wagner Free Institute of Science. 
($1.12 to Foreign Countries.) lOcts. a copy. 
THE 
Vol. VIII. JULY, 1894. No. 3. 
CONTENTS : 
PAGE. 
Synopsis of the Matrid^e of North America. By Wm. H. Dali . 25 
Helix (Arionta) Coloradoensis :—A New Locality. 
By Robt. E. C. Stearns. 29 
«• 
Notices of New Japanese Mollusks, IV. By H. A. Pilsbry. . . 2y 
List of Shells Collected in Jamaica. By J. B. Henderson, Jr. . 31 
My Daily Walk. By W. M. Wood. 33 
Notes and News .35 
Published by 
H. A. PILSBRY, Editor, Academy of Nat. Sciences, Philadelphia. 
C. W. JOHNSON, Manager, Wagner Free Institute of Science, Philad’a. 
Entered at Philadelphia Post-Office as second-class matter. 
