Contents of Volume 20 (1906–1907): The Nautilus

THE NAUTILUS

A Quarterly Devoted to Malacology

Contents of Volume 20 (1906–1907)

Volume 20 Number 12 (April 12, 1907)

H. A. PILSBRY and J. H. FERRISS. Notes on some new Mexican ashmunellas: 133–135
R. E. C. STEARNS. Abalones and the earthquake: 135–136
G. H. CLAPP. Epiphragmophora (Micrarionta) hutsoni n. sp.: 136–137
H. A. PILSBRY. On the soft anatomy of E. (Micrarionta) hutsoni: 138–139
H. B. PRESTON. Descriptions of Cypraea bernardinae and Calliostoma: 139–140
H. A. PILSBRY and E. G. VANATTA. Description of a new Bifidaria (B. agna): 140–142
W. H. DALL. Correspondence: 142–143
Publications received: 143–144
Notes: 144

Volume 20 Number 11 (March 4, 1907)

Volume 20 Number 10 (February 12, 1907)

G. H. CLAPP. New species of Stenotrema and Paravitrea from Alabama: 109–111
W. H. DALL. A new Cardium from Puget Sound: 111–112
L. P. GRATACAP. A note upon the insufficiency of the operculum as a basis of classification in round-mouthed shells (concluded): 113–118
Notes: 118–119
Publications received: 119–120

Volume 20 Number 9 (January 11, 1907)

J. B. HENDERSON, JR. Mollusks of Cazenovia, N.Y.: 97–98
V. STERKI. New Pisidia: 98–100
S. C. WHEAT. Land shells from East shore of Cayuga Lake: 100–101
L. P. GRATACAP. A note upon the insufficiency of the operculum as a basis of classification in round-mouthed shells (continued): 102–105
Notes: 105–106
Publications received: 106–108

Volume 20 Number 8 (December 10, 1906)

M. B. WILLIAMSON. Abalones and the penal code of California: 85–87
V. STERKI. New Pisidia: 87–89
S. C. WEAT. The Brooklyn Conchological Club: 89
M. SMITH. Shells of Richfield Springs, New York and vicinity: 89–91
L. P. GRATACAP. A note upon the insufficiency of the operculum as a basis of classification in round-mouthed shells: 91–94
T. D. A. COCKERELL. Helix hortensis in Newfoundland: 94
Notes: 94–96
Publications received: 96

Volume 20 Number 7 (November 5, 1906)

C. W. JOHNSON. On the distribution of Helix hortensis Mueller, in North America: 73–80
B. WALKER. A list of shells from Nebraska: 81–83
Notes: 83–84
Publications received: 84

Volume 20 Number 6 (October 13, 1906)

F. W. KELSEY. A healthy colony of Epiphragmophora tudiculata: 61
F. N. BALCH. Remarks on certain New England chitons with description of a new variety: 62–68
L. S. FRIERSON. Some observations on the ova of Unionidae: 68–69
V. STERKI. Sphaerium hendersoni n. sp.: 69–70
Notes: 71
Publications received: 71–72

Volume 20 Number 5 (September 22, 1906)

H. A. PILSBRY. Two new American genera of Basommatophora: 49–51
H. A. PILSBRY. Note on Lepyrium: 51
A. A. HINKLEY. Some shells of Mississippi and Alabama (concluded): 52–55
F. C. BAKER. Lymnaea danielsi sp. nov.: 55–56
S. ROUS. Note on Mitra picta Reeve: 57
H. A. PILSBRY and B. WALKER. Note on Vitrea approxima and V. vanattai: 57–58
T. D. A. COCKERELL. Subspecies, mutations and forms: 58–60

Volume 20 Number 4 (August 18, 1906)

W. J. RAYMOND. The West American species of Pleurotoma, subgenus Genota: 37–39
W. H. DALL. Note on the genus Glabaris Gray or Patularia Swainson: 39–40
A. A. HINKLEY. Some shells of Mississippi and Alabama (continued): 40–44
W. H. DALL. A new Scala from California: 44
C. F. ANCEY. Descriptions of two new Cleopatra and a Pisidium: 45–46
Notes: 46–47
Publications received: 47–48
Anonymous: Henry A. Ward: 48

Volume 20 Number 3 (July 2, 1906)

Volume 20 Number 2 (June 11, 1906)

G. H. CLAPP. Epiphragmophora kellettii (Fbs.) and E. stearnsiana (Gabb.): 13–16
J. H. FERRISS. Mollusks of Oklahoma: 16–17
V. STERKI. New species of Pisidium: 17–20
F. C. BAKER. A new Sphaerium from Illinois: 21–22
C. H. CHADWICK. List of Wisconsin shells: 22–24
Notes: 24

Volume 20 Number 1 (May 14, 1906)