An annotated checklist of the land snail family Orthalicidae (Gastropoda: Pulmonata: Orthalicoidea) in Ecuador, with notes on the distribution of the mainland species

Abstract

The family Orthalicidae is wide-spread in the Neotropics and a major member of the land snail fauna of most South American countries. This checklist presents the species known to exist in Ecuador. It is based on data from relevant literature and museums world wide. There are 168 species in total, 63 of which occur on the Galápagos; 9 species are listed for the first time from this country. New synonymies are: Bulimus abscissus Pfeiffer, 1855 = Drymaeus (D.) fallax Pfe-iffer, 1853; Bulimus caliginosus Reeve, 1849 = Bulimus irregularis Pfeiffer, 1848 = Naesiotus quitensis (Pfeiffer, 1848). In the geographical analysis only the mainland species have been taken into account. The species were sampled at 128 mainland localities, 46 of which have been sampled after 1950, indicating that some parts of the country are undersampled. The potential distribution has been analysed at (sub-)generic level, using Maxent and GIS software. Finally four directions for future research are suggested: strengthening the locality database, improved sampling for better modelling, analysis of models on a greater spatial scale and phylogeographic analyses.

The Ancognatha Erichson (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini) of Ecuador, with Description of a New Species

“…The collector, L. Peña, wrote two provinces for this locality: Carchi and Napo. Breure and Borrero (2008) indicated that there is a locality in Putumayo (Colombia) called Sibunday that has been often referred to as an Ecuadorian locality spelled Sebundoi. Sibunday, at 2,104 m in elevation, is close in distance to Napo and Carchi provinces and was possibly mistakenly placed in those northern Ecuadorian provinces in the case of these four specimens.…”

The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas

“…The methodology follows that used by Breure and Borrero (2008). Distributional data are given within the countries, arranged by main political divisions indicated in bold type, unless otherwise indicated; imprecise or untraceable locations are arranged under "?".…”

“…While orthalicoid snails occur and are quite diverse in the Galápagos Islands off Ecuador (viz. the genus Naesiotus, Breure & Borrero 2008), no species of Plekocheilus or Dryptus are known from these islands. A similar situation exists with the Colombian islands of San Andrés and Providencia in the Caribbean, from which species of Drymaeus, Bulimulus, and Orthalicus are known.…”

“…Although the focus is still on Colombia, to be able to justify our taxonomic treatment we found it indispensable to include several taxa that occur in adjacent areas of Ecuador, Panama, and . Apart from a checklist of the Ecuadorian species (Breure & Borrero 2008) and a list of genera occurring in Colombia (Vera 2008), no recent comprehensive revision of the non-marine malacofauna of this part of the continent is available. We present here the first part, dealing with the genera Dryptus Albers, 1860 andPlekocheilus Guilding, 1828.…”

Shelter, ecophysiology and conservation status of Plectostylus araucanus (Pulmonata: Bothriembryontidae) in the fragmented Maulino Forest, central Chile

“…Neotropical overview of land snails is still poor in many countries (Régnier et al, 2015), highlighting the malacological studies performed in Argentina (Cuezzo et al, 2013), Brazil (Simone, 2006), Colombia (Linares & Vera, 2012), Cuba (Espinosa & Ortea, 2009), Ecuador (Breure & Borrero, 2008) and Peru (Breure & Avila, 2016). In Chile, the study of land snails has been focused especially in the description of new species (Araya & Aliaga, 2015;Miquel & Araya, 2013Valdovinos & Stuardo, 1988; as well as studying their distributional range and reporting new records of exotic species (Araya, 2015a(Araya, , b, 2016Araya & Catalán, 2014;Araya et al, , 2017Cádiz & Gallardo, 2007;Martínez-de los Ríos, 2017;Stuardo & Vega, 1985;Valdovinos, 1999;Valdovinos & Stuardo, 1989).…”