Volume 3 Number 12 (May 7, 1890)
- H. HEMPHILL. Description of new varieties of North American land shells: 133–135
- V. STERKI. Notes on some northern Pupidae with description of a new species: 135–137
- C. W. JOHNSON. Annotated list of the shells of St. Augustine, Fla.: 137–139
- T. D. A. COCKERELL. Helix hortensis in America: 139–140
- American Association of Conchologists: 140–143
- M. B. WILLIAMSON. Leaves from a diary: 143–144
- Publications received: 144
Volume 3 Number 11 (April 15, 1890)
- W. H. DALL. On a new species of Tylodina: 121–122
- H. A. PILSBRY. A new American Bulimulus: 122–123
- V. STERKI. On some northern Pupidae, with descriptions of new species: 123–126
- T. D. A. COCKERELL. On the generic position of Arion foliolatus, Gould: 126–128
- J. FORD. A few last words on Crepidula: 128–129
- W. S. TEATOR. Collecting land shells in eastern New York (continued): 129–132
- General notes: 132
Volume 3 Number 10 (March 12, 1890)
- W. S. TEATON. Collecting land shells in eastern New York: 109–110
- T. D. A. COCKERELL. New western slugs: 111–113
- G. T. MARSTON. Occurrence of Helicina occulta Say, in Brown Co., Wis.: 113
- C. W. JOHNSON. Annotated list of the shells of St. Augustine, Fla.: 114–115
- J. KEEP. A word to young collectors: 115–117
- V. STERKI. Notes on some northern Pupidae with description of a new species: 117–120
- General notes: 120
Volume 3 Number 9 (February 11, 1890)
- E. W. ROPER. In a Maine conchologist’s hunting grounds: 97–98
- W. H. DALL. Note on Crepidula glauca Say: 98–99
- T. D. A. COCKERELL. A list of the Mollusca of Colorado: 99–103
- C. W. JOHNSON. An annotated list of the shells of St. Augustine, Fla.: 103–105
- General notes: 105–107
- Publications received: 107–108
Volume 3 Number 8 (January 7, 1890)
- F. A. SAMPSON. Description of a new American Helix: 85–86
- T. D. A. COCKERELL. Notes on the variation of certain Mollusca introduced from Europe: 86–87
- C. T. SIMPSON. What is a species? (continued): 88–90
- J. FORD. On Crepidula glauca: 90–92
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 92–95
- General notes: 95–96
Volume 3 Number 7 (November 13, 1889)
- T. D. A. COCKERELL. The Virginia colony of Helix nemoralis: 73–77
- E. W. ROPER. Collecting land shells in southern California: 77–78
- C. T. SIMPSON. What is a species?: 78–80
- F. C. BAKER. Description of a new species of Ocinebra: 80–81
- R. E. C. STEARNS. Helix (Stenotrema) hirsuta Say, on the West Coast: 81–82
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 82–83
- General notes: 83
- Publications received: 83–84
Volume 3 Number 6 (October 18, 1889)
- H. A. PILSBRY. Recent additions to the United States snail fauna: 61–64
- R. E. C. STEARNS. Critiques and comments: 64–66
- H. F. CARPENTER. Notes on Valvata (Lyogyrus) brownii: 67
- W. S. TEATOR. On Anodonta fluviatilis Dillw.: 67–69
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 69–71
- New publications: 71–72
Volume 3 Number 5 (October 1, 1889)
- R. E. C. STEARNS. Notes on Physa triticea of Lea; its relations and comments on the variation, etc. of Physae: 49–51
- H. A. PILSBRY. Helix nemoralis in Virginia: 51–52
- J. FORD. Scalaria angulata in New Jersey: 52–53
- F. C. BAKER. Notes on Floridan [sic] shells: 53–54
- J. KEEP. Summer studies in conchology: 54–56
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 56–59
- General notes: 59–60
Volume 3 Number 4 (August 11, 1889)
- V. STERKI. Pupa holzingeri, n. sp.: 37–39
- C. F. ANCEY. On Mr. Pilsbry’s critics upon some American shells: 39–42
- H. A. PILSBRY. Note upon Mr. Ancey’s criticism: 42–44
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 44–46
- General notes: 46
- Publications received: 47–48
Volume 3 Number 3 (July 14, 1889)
- W. H. DALL. Note on two helices new to the fauna of the United States: 25–26
- C. T. SIMPSON. On a singular case of imitation in Ostrea virginica: 26–27
- J. FORD. List of shells of the New Jersey coast south of Brigantine Island: 27–29
- R. E. C. STEARNS. A mammoth land snail: 29–30
- W. H. DALL. On the genus Corolla Dall: 30–32
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 32–33
- W. A. MARSH. Brief notes on the land and fresh-water shells of Mercer County, Ill. (continued): 34–35
- General notes: 35
- Publications: 35–36
Volume 3 Number 2 (June 9, 1889)
- W. H. DALL. Notes on Lophocardium Fischer: 13–14
- H. A. PILSBRY. A new Californian Helix: 14–15
- B. WALKER. On the occurrence of Unio complanatus Sol., in Michigan: 16–17
- J. FORD. Description of Helix (Trachia) dentoni n. sp.: 17–18
- C. R. KEYES. Note on the distribution of Helicina occulta: 18–19
- General notes: 19–20
- Proceedings of scientific societies: 20–21
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island (continued): 21–23
- W. A. MARSH. Brief notes on the land and fresh-water shells of Mercer County, Ill.: 23–24
- Publications received: 24
Volume 3 Number 1 (May 5, 1889)
- Introduction: 1
- W. H. DALL. Notes on the soft parts of Trochus infundibulum Watson. With an account of a remarkable sexual modification of the epipodium, hitherto undescribed in Mollusca: 2–4
- E. W. ROPER. Cast up by the sea: 5
- C. T. SIMPSON. Genus making: 5–8
- Anonymous. Striae: 8–9
- J. H. CAMPBELL. Notes on the genus Cypraea: 10–11
- H. F. CARPENTER. The shell-bearing Mollusca of Rhode Island: 11–12
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