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        Published Photographs: 
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        images | photographic 
        techniques 
      
  - Images exhibited at Smithsonian Institution "Orchids: Interlocking Science and Beauty" from January 24 to April 26, 2015.
   
   - Images exhibited at Santa Barbara Museum of Natural History Maximus Gallery"Science and Beauty: the Orchid Evolves" in 2014.  
  
 - Light and SEM images for Tafelmusik Baroque Orchestra multimedia program "J.S. Bach: The Circle of Creation". Review.
  
 - Selected "Serious photographer" by PhotoTechniques magazine. Pdf  
    
  
 - Light & Smith Manual, 2007, University of California Press. Phoronis californiensis, p. 862 (R. Zimmer: Phoronida). 
  
  
 - Cover Zootaxa 682[hard-cover edition] (Turricula tornata). Tucker, 
    J. K. 2004. Catalog of Recent and fossil turrids (Mollusca: Gastropoda) Zootaxa 
    682: 1-1295.
  
  
 - Royal Society for the Protection of Birds, Children's card pack (Okenia 
    elegans). 
  
  
 - Interpretitive panel on Rye Patch Reservoir, Nevada, Nevada State Parks 
    (Sceloporus occidentalis). 
  
  
 - Ctenogobiops feroculus 
    and Alpheus djeddensis in Thompson, A. R. 2004: Habitat and mutualism 
    affect the distrubiton of abundace of a shrimp-associated goby. Mar. Freshw. 
    Res. 55: 105-113. 
  
    
 
   - Garland, P. 2003. Agir & explorer. Artis, Brussels. (Haliotis tuberculata: 
    accidentially reversed image) 
  
  
 -  National Aquarium, Washington, DC (11 images of amphibians and fishes) 
  
  
 - ARKive endanged 
    species site (Cirripathes sp., Tubipora musica) 
  
  
 - Nature 417: 319 (Aplysia californica). 
  
  
 - Educational CD-ROM, Thinkwell 
    Publications [various organisms]. 
  
 - Exhibition catalog "Pearls": American Museum of Natural History [Haliotis tubeculata]. 
  
 -  Laborjournal 10/2000 
    [Aplysia punctata].  
  
 - 2000. Leighton, D. Abalone Biology and Culture. [Scanning Electron Micrographs 
    of abalone radulas]. 
  
  
 - 2000: Natural History Museum 
    of Los Angeles County, Earth Odyssey van [various organisms].  
  
 - Bill Rudman's Sea 
    Slug Forum [various seaslugs].  
  
 - Erwin Köhler's Medslug 
    site. [115 images: 10/2002, various 
    seaslugs]. 
  
 - 1998. Greenpeace Seachange 
    site [no longer available].  
  
  Geiger, D. L. 2000. Distribution 
    and biogeography of abalone (Gastropoda: Vetigastropoda) world-wide. Bollettino 
    Malacologico 35: 57-120.  
  - 1998. Natural History Museum 
    of Los Angeles County. Marine Hall: Wall on diversity of marine invertebrate 
    phyla [most pictures, various invertebrates]. 
  
 - 1997. Promotional CD-ROM of the 
      Natural History Museum of Los Angeles County. [all molluscs and many 
    worms]  
  
 - Bakus, G. 1996. CD-ROM on Natural 
    History of Southern California. University of Southern California. 
    [Various vertebrates].  
  
 - Bakus, G. 1996. CD-ROM on Ecology. 
      University of Southern California.[Velella velella]  
  
 - Geiger, D. 1993. Hinterkiemerschnecken 
    bestimmen leicht gemacht. Club Conchylia Informationen 25(2): 
    127-145. [Various Opisthobranchia, Lamellaria latens].  
  
 - Geiger, D. 1992. Zu den Bestimmungen 
    der schalenlosen Opisthobranchia in Poppe und Goto (1991): Flabellina affinis 
    (pl. 40 fig. 5) ist Coryphella pedata. Club Conchylia Informationen 
    25(1): 87-93. [Flabellina affinis, Coryphella pedata]. 
  
 - Geiger, D. 1991. Einige Aspekte 
    über die Biologie von Haliotis. Club Conchylia Informationen 23(1-2): 
    87-108. [Haliotis tuberculata],  
  
 - Cover of Argonauta 6(1-6) 
    [Octopus macropus] 
  
  
  
             
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