Figure 1.  The 2016 Mid-Atlantic Malacololgists.

Back row from left: Zahra Mansur, Kevin E. Scriber II, Ken Hayes, Gary Rosenberg, Bart Tomascak, Colleen Winters, Matt Blaine, Vinnie Peters, Charlie Sturm, Bob Schmidt, Phil Fallon. Middle Row: Dona Blaine, Lauren Sweeney, Kathy Schmidt, Nate Shoobs, Liz Shea, John Wolff, Francisco Borrero, Janice Voltzow. Front Row: Beysun Ӧrstan, Aydin Ӧrstan, Rich Goldberg, Kacie Goldberg, Tim Pearce, Alex Kittle, Megan Paustian, Makiri Sei, Heather Brock, and Erika Iyengar.

Missing: Heather Kostick, Jeff Long, Larry and Takako Van Stone

2016 Mid-Atlantic Malacologists (MAM) Meeting

Saturday, April 2, 2016

Elizabeth K. Shea and Timothy A. Pearce

The 18th Mid-Atlantic Malacologists (MAM) meeting was held on 2 April 2016 at the Delaware Museum of Natural History, hosted by Elizabeth Shea and Alex Kittle. There were 33 people in attendance and 16 talks were given to a receptive and engaged audience.  Thanks to all the participants for another fun and informative day!

Next year, MAM will be co-hosted by Ken Hayes (Howard University) and Ellen Strong (National Museum of Natural History) in Washington D.C.  Stay tuned for more details as MAM goes on walkabout to our Nation’s Capital!

Talks presented, arranged alphabetically:

F. Matthew Blaine, Curatorial Associate, DMNH. Range extension of the invasive landsnail Bulimulus sporadicus.  A brief review of how a group of unusual snails found at Port Malibar, FL were collected and identified.

Richard Goldberg. Worldwide Specimen Shells.  Observations of terrestrial mollusks at night in Jamaica.  Nighttime observations of annulariid and pleurodontid snails in Cockpit Country showed the unusual behavior of mucus dangling.

Erika Iyengar, Muhlenberg College.  Possible impacts of an invasive slug (Arion rufus) on San Juan Island, Washington. Investigations of possible competition between an invasive slug and the native banana slug by assessing feeding preferences and the lack of impact of alterations by the invasive slug in nutrient cycling on grass growth.

Jeffrey Long, Partnership for the Delaware Estuary.  Freshwater Mussel Recovery Program and Volunteer Mussel Surveys.  An introduction to the citizen-science mussel survey and recovery programs run by the Partnership for the Delaware Estuary.  Efforts to propagate and re-introduce mussels, and monitor success have been ongoing since 2011.

Zahra Mansur, undergraduate student, Howard University. Microsatellite analysis of apple snail egg clutches from Lake Sanu, Uruguay. This paper described the genetic analysis of apple snail eggs to determine the frequency of multiple paternity.

Aydin Ӧrstan, Research Associate, Carnegie Museum of Natural History. Sizes and shapes: a database for pulmonate land snails. Shell dimension for most shelled land snail genera have been analyzed to determine size and shape distributions and to recognize patterns.

Timothy A. Pearce and Chelsea Arnold, Carnegie Museum of Natural History. Decline of Anguispira alternata in Pennsylvania, USA. Fewer records of Anguispira alternata in recent decades suggest this formerly abundant land snail has declined.  We demonstrated that the decline is real as opposed to insufficient search.  The decline appears to have started about 1960. Of four hypotheses considered for the decline, the timing of rise in acid precipitation best matches the timing of the snail decline.

Winfried “Vinnie” S. Peters, Indiana/Purdue University Fort Wayne.  Olivid gastropods from the Central American West Coast. This highly entertaining and informative movie clip of olivid gastropods hunting and consuming prey was originally produced for an exhibit at the Museu do Mar Rei Dom Carlos in Cascais, Portugal.

Kathy Schmidt, Simon’s Rock College. Shell Collecting in Vulcan’s Shadow. This talk highlighted ongoing collecting and research efforts on Montserrat, BWI as part of the Field Biology summer program at Simon’s Rock College.

Kevin E. Schriber, II, Howard University. The trophic ecology of Pomacea spp. in the La Plata Basin of Uruguay.   This talk introduced the negative impacts of invasive apple snails, presented results on trophic position within the native range, and highlighted future work in Florida, China, and Hawaii.

Elizabeth K. Shea. Delaware Museum of Natural History. AMS 2017. This talk introduced the University of Delaware as the venue for the next AMS meeting in July 2017. Lodging options and possible symposium topics were discussed, a local organizing committee was solicited, and local volunteers were recruited to help develop social events.

Nate Shoobs, Undergraduate student, Simon’s Rock College and Research Associate, DMNH. Preliminary notes on the Lesser Antillean genera Amphibulima Lamarck, 1805 and Pellicula Fischer, 1856.  Presentation on the taxonomy, anatomy, distributions, and ecology of two rare and poorly known genera of terrestrial neotropical semi slugs.

Makiri Sei and Gary Rosenberg, Academy of Natural Sciences of Drexel University.  The Cockpit Country of Jamaica: a limestone forest of global importance.  This talk provided a description of the geology of the area and the landsnails that occur within.

Bart Tomascak. Discussion of subjective variance of mollusks.  Description of yearly collecting activities on New England beaches and observations on difficulties inherent in learning how to identifying shells that may be worn, damaged or otherwise imperfect exemplars.   

Janice Voltzow, University of Scranton. Why do shells have holes? So we can see inside! Using an endoscope to look inside the mantle cavities of keyhole limpets and abalone shows that in contrast to how gills are traditionally illustrated, in the living animal the gills are large, inflated and fill the entire mantle cavity.

Colleen Winters, Towson University. Return of the Snail: The tale of Patera sargentiana. The story of Patera sargentiana land snail snails that were raised in captivity, multiplied like crazy, and were released back into the location where they were originally collected.