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snail and mussel surveys

u.s. & canada

Ferson Creek, Illinois


Photo: K. Hollister, radula, close-up

Pseudocardinal tooth - Margaritifera falcata

Photo: Katharine Hollister, Invertebrate Identification


For inclusion in a Field Guide to the Freshwater and Terrestrial Molluscs of the Sacramento-Pit River area, for the California Fish & Game Service.





Please refer to CLIENTS page for complete representation.


Sept 2016 - Mar 2017. Identified almost 4000 lots of North American land and freshwater molluscs for the Field Museum of Natural History, Chicago, IL.


July 2016 – Dec 2016. Formally describe the US federally endangered freshwater snail, the Banbury Lanx for the Boise Office of the US Fish and Wildlife Service.


Feb 2015 – Mar 2017. Prepared a list of all the names and synonyms applied to the non-marine molluscs of North America, for the Field Museum of Natural History, Chicago, IL.


Oct 2014 – Feb 2016. Prepare a status report for the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) on the Shortface Lanx (Fisherola nuttallii) in Canada.


IUCN, (International Union for Conservation of Nature). Invited Red list panelist. Assessed the Red List status of the world’s freshwater molluscs.  Organized jointly by the Zoological Society of London, the Encyclopedia of Life (EOL), International Union for Conservation of Nature (IUCN), and the IUCN SSC Mollusc Specialist Group, London, England, 2010.

Preliminary survey of the Hydrobiidae of Alabama. Alabama Department of Conservation and Natural Resources.

Montgomery, AL. 2007


Served on the Status Review Panel for the federally endangered Idaho Springsnail (Pyrgulopsis robusta), in Boise, Idaho. United States Fish and Wildlife Service, Western Region 2005.



Please see our Invertebrate Identification Australasia project page

Duralie Coal, Pty Ltd., New South Wales, 2003-2019
Stratford Coal Pty Ltd., Stratford, New South Wales, 2003-2019



Specialities for the US include:

Terrestrial and aquatic mollusc identification and surveys

Taxonomy and systematics of invertebrates particularly molluscs, insects

and crustaceans

Other services:

Biological and Groundwater Monitoring

DNA  - sequencing and analysis

Educational Trainings

Expert Witness


















United States, Canada, Australasia, Oceania

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