Popular and minor contributions
in press
  • Geiger, D. L. in press. Experiences on growing orchids in a terrarium. Orchids.
  • 2008
  • Geiger, D. L. 2008. Bookreview: Kantor & Sysoev, 2006. Club Conchylia Mitteilungen 8: 47-48.
  • Geiger, D. L. 2008. Bookreview: Light’s Manual. Club Conchylia Mitteilungen 8: 48-49.
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    2007
  • Geiger, D. L. 2007. Micromolluscs: methodological challenges, exiting results. Unitas Malacologica Newsletter 25: 10-11.
  • 2006
  • Geiger, D. L. 2006. Five recipes in “A Whale of a Cookbook” (H. Bartz, V. Gerditzer, R. Johansen, N. Mills, S. Russell and R. Winitzky, eds.). Friends of the Santa Barbara Museum of Natural History, Santa Barbara: pp. 131, 153-154, 221, 223, 240.
  • Geiger, D. L. 2006. Kleinste Schnecken grossgeschrieben: der Stand der Scissurelliden-Forschung. Club Conchylia Informationen 38 (1/2): 33-46.
  • Geiger, D. L. 2006. Southernmost record of Zeidora bigelowi Farfante, 1947 from Honduras (Vetigastropoda: Fissurellidae). The Festivus 38(1): 3-4.
  • Geiger, D. L. 2006. Schaufelbaggern für Grosse: Mit dem Petite-Ponar Greiffer in Neu Britannien unterwegs. Club Conchylia Mitteilungen 5: 31-33.
  • Geiger, D. L. 2006. Pdf edition of A. A. H. Lichtenstein's (1794) Catalogus rerum naturalium rarissimarum, sectio secunda. Download pdf [77.3 MB].
  • 2004
  • Geiger, D. L. 2004. Made for SEM: the fascinating world of scissurellids. American Conchologist 32(4): 4-7.
  • 2003
  • Geiger, D. L. 2003. An new old (or old new) author in malacology. American Conchologist 31(3): 4-8.
  • Geiger, D. L. 2004. Warning! Micromount clay is NOT suitable for usage in Shell collections! Club Conchylia Informationen 35: 110-111. pdf
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    2002
  • Geiger, D. L. 2002. Australian Scissurellidae. Australasian Shell News 113: 1.
  • Geiger, D. L. 2002. The abalone from the Canary Islands: A taxonomic Bermuda triangle. Club Conchylia Informationen 33: 57-61.
  • 2001
  • Geiger, D. L. 2001. Revision of the Haliotidae [by the 2000 Annual Award Winner]. Bulletin of the Malacological Society of London 37: 16.
  • 2000
  • Geiger, D. L. 2000. Bookreview. A Conchological Iconography. The Veliger 43: 377-378.
  • Geiger, D. L. 2000. Abalone Update. Australasian Shellnews 107: 1, 3.
  • 1999
  • Geiger, D. L. & D. Pisor. 1999. Haliotis queketti (Smith, 1910) from northeast Somalia: a range extension of 4,000 km. The Festivus 31: 105-107.
  • Geiger, D. 1999. SCUM III in Sand Diego: 16. Jänner 1999. Club Conchylia Informationen 31(1/2): 72.
  • Geiger, D. 1999. Artbeschreibung ohne peer review? Species description without peer review? Club Conchylia Informationen 31(1/2): 79-80.
  • 1998
  • Geiger, D. L. & R. Herrmann. 1998. A black abalone with "withering foot disease" from the San Diego area. The Festivus 30:99, 101-102.
  • Geiger, D. L. 1998. A new photographic lighting method for macrophotography: the pseudo-TTL flash technique. Club Conchylia Informationen 30(4-6): 13-15. Abstract | web pages
  • Geiger, D. L. 1998. High quality, digital maps custom made for free off the world wide web. Club Conchylia Informationen 30(4-6): 17-20. Abstract
  • 1997
  • Geiger, D. L. 1997. SACOS: an inexpensive and robust underwater sampling device for SCUBA divers. Festivus 29(4): 32-34. Abstract
  • Geiger, D. L. 1997. Short note on the identification and taxonomy of the Haliotidae figured in the General Conchology of Gloria Maris 34: pls. 4-5. Gloria Maris 28: 27-28.
  • Geiger, D. 1997. Malakophilatelistische Notiz. Club Conchylia Informationen 29(1/2): 87.
  • 1995
  • Ellis, J. R., P. S. Cadman, S. B. Piertney & D. L. Geiger. 1995. The marine fauna of the St. Kilda archipelago (Outer Hebrides). Scottish Naturalist 107: 53-70.
  • 1993
  • Geiger, D. 1993. Hinterkiemerschnecken bestimmen leicht gemacht. [Identification of Opisthobranchs made easy.] Club Conchylia Informationen 25(2): 127-145.
  • Geiger, D. 1993. Shepherd, S. A. et al. (1992) Abalone of the World: Biology, Fisheries and Management. Club Conchylia Informationen 25(1): 22-23.
  • 1992
  • Geiger, D. 1992. Zu den Bestimmungen der schalenlosen Opisthobranchia in Poppe und Goto (1991). Flabellina affinis (pl. 40 fig. 5) ist Coryphella pedata. [Regarding the identifications of the shell-less Opisthobranchia in Poppe and Goto (1991). Flabellina affinis (pl. 40 fig. 5) is Coryphella pedata.] Club Conchylia Informationen 25(1): 87-93.
  • 1991
  • Geiger, D. 1991. Einige Aspekte über die Biologie von Haliotis. [Some aspects of the biology of Haliotis. In German] Club Conchylia Informationen 23(1-2): 87-108.
  • 1988
  • Geiger, D. 1988. Winter-Treffen in Riehen. Club Conchylia Informationen 20 (4/5): 8-10.
    1987
  • Geiger, D. 1987. Schalosch Codachim be Israel: Drei Monate in Isreal [Three months in Israel. In German] Club Conchylia Informationen 19(1-2): 65-73.
  • Geiger, D. 1987. High Noon in Riehen. Club Conchylia Informationen 19(1/2): 73.
  • 1986
  • Geiger, D. 1986. Na klar: 1,2,3-Propantriol C3H5(OH)3. [Of course: 1,2,3-Propantriol C3H5(OH)3. In German] Club Conchylia Informationen 18(6): 59-60.