Agudo-Padr??n (2012) recently published a brief overview of the preferences of snail-eating snakes in southern Brazil, belonging to the snake family Dipsadidae.
There is a new invasive species in Florida, which has been reported for some time as the “ghost Bulimulus” or ‘Jacksonville Bulimulus‘. Thanks to the many efforts of Bill Frank and Harry Lee, and the ability of David Robinson to compare specimens with those that were previously reported as B. sporadicus (d’Orbigny, 1835) from Houston, we now know that the Florida populations belong to the same taxon. Some authors regard it as a subspecies of B. bonariensis (Refinesque, 1833).
In a historical overview of malacology, the authors focus on the Americas and especially Brazil. They follow the sequences of the Unitas Malacologica (UM / WCM), where many well-known malacologists are mentioned. Also the history of CLAMA is treated. Present-day malacological activities in Brazil are focussing on applied malacology. The main text is in Portuguese, but an English abstract is provided.
Vasconcelos & Pena (2012) recorded the second specimen known for the rare Brazilian snail Thaumastus caetensis Pena, Salgado & Coelho, 2011. The specimen was found in de Serra da Piedade, Caet??, Minas Gerais and its presence in a protected area is important. This species is probably restricted to the ‘campos rupestres’ habitat. The (subadult) specimen was found alive, but preserved in formalin, which makes it unsuitable for DNA research.
Dr Christina Giovas, zooarchaeologist at the University of Washington in Seatlle, kindly sent me two photographs of a live specimen of Orthalicus undatus (Brugui??re, 1789). These photos were taken on the West Indian island of Carriacou while she was doing field work in 2008.
In past month’s newsletter from the Belize Foundation for Research and Environmental Education, a brief note appeared by Dan Dourson with observations on snail-eating snakes in Belize. See http://www.mynewsletterbuilder.com/email/newsletter/1411504614.
Speaking of synapomorphies and coevolution, the neotropical family Bulimulidae, separate (dextral) species of which are shown in the jaws of the two Sibon nebulata figured in Dan’s report, have evolved three sinistral taxa (and I consider them independent lineages):
Drymaeus semimaculatus perversus Pilsbry, 1926, type locality Garachino Province, Panama. [nominotypical subspecies dextral]
Drymaeus tropicalis (Morelet, 1849) type locality Campeche, Mexico, but my notes indicate that David Kirsh found a specimen on the grounds of Hotel Santa Maria de Ostuma, outside of Matagalpa, Nicaragua in August, 1983. Perhaps the same snake-snail selective forces are at play in Central America as in E, S, and SE Asia.”