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IZ Staff

-F.G. (Eric) Hochberg, Ph.D.
-Paul Valentich-Scott
-Daniel L. Geiger, Ph.D.
-Matthew L. Gimmel, Ph.D.

  Daniel L. Geiger, Ph.D.
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Daniel L. Geiger, Ph.D.
Curator of Malacology
Department of Invertebrate Zoology

Mailing address:
Department of Invertebrate Zoology
Santa Barbara Museum of Natural History
2559 Puesta del Sol
Santa Barbara, CA 93105 USA

Phone: 805-682-4711 x152
FAX: 805-563-0574
email: dgeiger(AT) - geiger(AT)

Dr. Daniel Geiger joined the Museum staff in 2005, following training at University of Southern California, Los Angeles, and The Natural History Museum of Los Angeles County. Research focuses on biodiversity and evolution of lower marine snails, including abalone, top snails, keyhole limpets and some lesser known groups. Techniques applied range from light and electron microscopy, histology and 3D computer assisted reconstruction (video link), to DNA sequence analysis.

The animals in this group range in size from 0.6 mm to 300 mm, and inhabit the ocean from the intertidal to the deep sea. Large scale evolutionary questions on change in size and associated modification of the body, as well as colonization of the ocean in the vertical dimensions are addressed.

Geiger is the leading authority on the world's abalone, author of a monograph of this family, and maintains a website on this family. He has published a second monograph on the little-known, microscopic little slit shells (Scissurellidae s.l.). He has described 92 species, 7 genera, and 1 family (List).

The latest project involves an inventory of the northeastern Pacific marine snails, where he serves as lead editor and contributor with an international group of experts (

Key hole limpet

Abalone animal

Deep sea snail

Little slit shell

Abalone shell

Teeth of snail

Historical aspects of science are an other area of interest. A facsimile reproduction and translation of the exceedingly rare sales catalog by Anton August Heinrich Lichtenstein (1794) is available on the web, along with some select facsimile pdfs of other rare works on mollusks.

Selected publications:

Geiger, D. L. 2012. Monograph of the Little Slit Shells. Santa Barbara Museum of Natural History. 1291 pp., 1042 figs., 11 insert cards Local linkCompanion website.

Geiger, D. L. & B. Owen. 2012. Abalone: World-Wide Haliotidae. Conchbooks, Hackenheim viii + 361 pp. Local link

Geiger, D. L., B. Marshall, W. Ponder, T. Sasaki & A. Warén. 2007. Techniques for collecting, handling, and preparing small molluscan specimens. Molluscan Research 27 (Special Issue): 1-50.

Geiger, D. L. 2006. Eight new species of Scissurellidae and Anatomidae (Mollusca: Gastropoda: Vetigastropoda) from around the world, with discussion of two new senior synonyms. Zootaxa 1128: 1-33.

Geiger, D. L. & C. E. Thacker. 2005. Molecular phylogeny of Vetigastropoda reveals non-monophyletic Scissurellidae, Trochoidea, and Fissurelloidea. Molluscan Research 25: 47-55.

Geiger, D. L. 2003. Phylogenetic assessment of characters proposed for the generic classification of Recent Scissurellidae (Gastropoda: Vetigastropoda) with description of one new genus and six new species from Easter Island and Australia. Molluscan Research 23: 21-83.

Geiger, D. L & G. T. Poppe. 2000. Haliotidae. in Conchological Iconography. G.T. Poppe & K. Groh (eds.). Conchbooks, Hackenheim. 135 pp., 83 pls.

Research links:

For more information, see:
Geiger's CV and full publications list with pdfs
ABMAP: Abalone Mapping Project
Lichtenstein (1794) catalog


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