Inventário dos gastrópodes terrestres da Sera Pedra do Serrote, Aurora (Ceará), semiárido brasileiro.

Abstract

Land gastropods can be found in all continental ecossistems of the planet, including those subject to long periods of dry, such as the Caatinga. Despite the considerable biological and ecological importance, the land gastropods have been little studied in the terrestrial ecossistems of Brazil. This work aims to inventory the land gastropodo f tha Caatinga comprised in the Pedra do Serrote, Ceará state, northeastern Brazil. Gastropods from this region were coleted between April and June of 2017 bordering and entering the vegetation in the soil, litter, branches em between rocks. After colections, all specimes were picked up, cleaned and separated by morphotypes. Subsequently, the specimes were identified and photographed. Eigth species of gastropods were identified and classified in tha families Helicinidae, Bulimulidae, Hortalicidae, Odontostomidae, Achatinidae, Streptaxidae and Sistrophiidae. Odontostomidae was the family with the greatest species richness found in the region. Species of Anostoma octodentata, Beckianum beckianum, Helicina schereri, Orthalicus capax, Rhinus taipuensis, Streptartemon cookeanus, Tamayoa baghaasi and Tomigerus pilsbryi studied here in are representedby shels and/or living specimens. The record of Anostoma octodentata, Helicina schereri, Orthalicus capax, Rhinus taipuensis, Streptartemon cookeanus and Tomigerus pilsbryi for Pedra do Serrote (Aurora, Ceará) extends the knowledge on the occurrence of the taxa to the extreme West of northeastern of Brazil in Caatinga ecosystem. This study records for the first time Beckianum beckianum and Tamayoa baghaasi for the state of Ceará. This study contributed to the recognition of the malacofauna of the Caatinga ecosystem and reinforces the affirmation of previous studies on the still unsatisfactory knowledge about the biodiversity of the group.