Volume 104 Number 4 (December 13, 1990)- R. W. GILMER. Procymbulia philiporum new species, with a discussion of the genus Procymbulia Meisenheimer, 1905 (Gastropoda: Thecosomata): 111–119
- M. G. HARASEWYCH. Studies on bathyal and abyssal Buccinidae (Gastropoda: Neogastropoda): 1. Metula fusiformis Clench and Aguayo, 1941: 120–129
- C. C. CONEY. Bellascintilla parmaleeana new genus and species from the tropical eastern Pacific, with a review of the other, ventrally notched galeommatid genera (Bivalvia: Galeommatacea): 130–144
- R. ROBERTSON. Malacology or Conchology?: 145–146
Volume 104 Number 3 (October 11, 1990)
- J. H. MCLEAN. A new genus and species of neomphalid limpet from the Mariana Vents with a review of current understanding of relationships among Neomphalacea and Peltospiracea: 77–86
- R. D. HUNTER. Shell dissolution rate in freshwater pulmonate snails: influence of periostracum and water chemistry: 87–91
- T. STAHL and D. M. LODGE. Effect of experimentally induced shell damage on mortality, reproduction and growth in Helisoma trivolvis (Say, 1816): 92–95
- E. J. PETUCH. New gastropods from the Bermont Formation (Middle Pleistocene) from the Everglades Basin: 96–104
- B. A. MARSHALL. Micropilina tangaroa, a new monoplacophoran (Mollusca) from northern New Zealand: 105–107
- W. K. EMERSON and W. E. SAGE, III. Addenda to “Distorsio ridens (Reeve, 1844): a synonym of Distorsio clathrata (Lamarck, 1816) (Gastropoda: Personidae)”: 108–110
Volume 104 Number 2 (September 6, 1990)
- R. S. HOUBRICK. Review of the genus Colina H. and A. Adams, 1854 (Cerithiidae: Prosobranchia): 35–52
- H. G. PIERCE. Two unusual gastropods from Late Pliocene lakes in northeast Nebraska: 53–56
- E. J. PETUCH. A new molluscan faunule from the Caribbean coast of Panama: 57–70
- H. L. FAIRBANKS. Morphological comparisons of the species of Megapallifera (Gastropods: Philomycidae): 71–75
- M. G. HARASEWYCH. Ovophagy in Anachis avara (Say, 1822) (Gastropoda: Columbellidae): 76
Volume 104 Number 1 (June 25, 1990)
- W. K. EMERSON and W. E. SAGE, III. A new species of Latirus from the Philippine Islands (Gastropoda: Fasciolariidae): 1–3
- T. V. BELANGER, C. G. ANNIS, JR. and D. D. VANEPPS. Growth rate of the asiatic clam, Corbicula fluminea, in the upper and middle St. Johns River, Florida: 4–9
- F. G. DOHERTY, D. S. CHERRY and J. CAIRNS, JR. Multiseasonal tissue growth trends in Corbicula fluminea (Bivalvia: Corbiculidae) from the New River, Virginia: 10–15
- R. W. NECK. Geological substrate and human impact as influences on bivalves of Lake Lewisville, Trinity River, Texas: 16–25
- R. B. TOLL. A reaffirmation of the nomenclatural status of Octopus filosus Howell, 1868, the senior synonym of Octopus hummelincki Adam, 1936: 26–28
- G. ROSENBERG, A. E. BOGAN and E. E. SPAMER. Coelatura Conrad, 1853, Caelatura Conrad, 1865 and Coelatura Pfeiffer, 1877 (Mollusca): a tale of two diphthongs: 29–32
- K. C. EMBERTON and L. RICHARDSON. Eduardus Pilsbry, 1930, a subgenus of Praticolella Martens, 1892 (Gastropoda: Stylommatophora: Polygyridae): 33
- News and Notices: 34
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