Topic
Bostryx
About: Bostryx is a research topic. Over the lifetime, 23 publications have been published within this topic receiving 193 citations.
Papers
Journal Article•
TL;DR: The morphological variation of the shell, radula, pallial organs and genitalia is analized, 21 character transition series are recognized and hypotheses of phylogenetic relationships are presented for the genus groups, using the methods of Hennig and Croizat's vicariance theory.
Abstract: In this publication a revision is given of the genera of the subfamily Bulimulinae (Gastropoda, Pulmonata, Bulimulidae).
The morphological variation of the shell, radula, pallial organs and genitalia is analized and 21 character transition series are recognized.
In the systematical part the following data are presented for each genus : description of shell and anatomy, distribution, ecology, bibliography and a list of taxa. The number of (sub) genera is reduced from 80 to 43 ( + two nomina inquirenda). A new synonymy is : Paracochlea Hylton Scott, 1967 = Eudioptus Albers, 1860. The following new species names are introduced : Bostryx sophieae, Drymaeus (Drymaeus) marcapatensis, Drymaeus (Drymaeus) sophieae, Drymaeus (Mesembrinus) pseudobesus. Berendtia digueti Mabille is designated type species of Teneritia Mabille ; Helix zoographica d'Orbigny is designated type species of Hamadryas Albers.
Based on the transition series mentioned above, hypotheses of phylogenetic relationships are presented for the genus groups, using the methods of Hennig. The relationships between the five subfamilies of the Bulimulidae are also investigated but remain tentative.
In the zoogeographical section the various theories are reviewed and their relevance for the distribution of the Bulimulinae is treated, using the hypotheses of phylogenetic relationships and Croizat's vicariance theory.
105 citations
TL;DR: The main distinctive morphological characters of the three species are: the structure of the shell’s protoconch and teleoconch, radular morphology, location of the secondary ureter opening, the length of the free oviduct with respect to the vagina and the epiphallus withrespect to the penis and the bursa copulatrix duct”s inner wall sculpture.
Abstract: Morphology of the shell, radula, jaw, anatomy and sculpture of the inner wall of the reproductive system are described and compared for three species belonging to the Bostryx tortoranus species complex. On the basis of these characters, the following changes are proposed: Bostryx martinezi (Hylton Scott, 1965) is removed from synonymy with Bostryx tortoranus (Doering, 1879) and Bulimulus (Scansicochlea) cicheroi Hylton Scott, 1967 is transferred from synonymy with B. tortoranus to synonymy with B. martinezi. As a result of these changes, the number of species of Bostryx known from Argentina has increased to 19 species. Bostryx tortoranus and B. martinezi are redescribed, also the radula and anatomy of Bostryx rudisculptus (Parodiz, 1956) are described for the first time. The main distinctive morphological characters of the three species are: the structure of the shell’s protoconch and teleoconch, radular morphology, location of the secondary ureter opening, the length of the free oviduct with respect to t...
55 citations
TL;DR: The distribution of molluscan genera and species in continental Chile is discussed with regard to the biogeographic units propos...
Abstract: About 150 species belonging to 14 families are mentioned in the scattered literature dealing with the land molluscs of Chile. However, the records of the Streptaxidae and Haplotrematidae are dubious and all those for the Limacidae, Zonitidae and Helicidae correspond to introduced species. The remaining 9 families are represented by endemic genera and subgenera present either in the oceanic islands (Fernandezia, Tornatellina, Ambrosiella) or in continental Chile (Bostryx (Ataxus), Chiliborus). A few are limited in their distribution to the southern part of South America (Austrodiscus, Stephadiscus, Macrocyclis) or are found both in the islands and along the continent (Amphiodoxa, Stephanoda). The majority of the other genera have a wider distribution in the Indo‐Pacific (Punctum, Ptychodon, Champa), in South America, the Americas in general and/or in the other parts of the world. The distribution of molluscan genera and species in continental Chile is discussed with regard to the biogeographic units propos...
33 citations
TL;DR: Results reveal that the Región de Atacama is the richest region in terrestrial snails in Chile, after the Juan Fernández Archipelago, and all of the terrestrial molluscan species occurring in the area are endemic to Chile.
Abstract: The bulimulid genus Bostryx Troschel, 1847 is the most species-rich genus of land snails found in Chile, with the majority of its species found only in the northern part of the country, usually in arid coastal zones. This genus has been sparsely studied in Chile and there is little information on their distribution, diversity or ecology. Here, for the first time, a formal analysis of the diversity of bulimulids in the Region de Atacama, northern Chile, is reported. Of the seventeen species recorded for the area, most of them were efectively found in the field collections and one record was based on literature. Five taxa are described as new: Bostryx ancavilorum sp. nov., Bostryx breurei sp. nov., Bostryx calderaensis sp. nov., Bostryx ireneae sp. nov. and Bostryx valdovinosi sp. nov., and the known geographic distribution of seven species is extended. Results reveal that the Region de Atacama is the richest region in terrestrial snails in Chile, after the Juan Fernandez Archipelago. All of the terrestrial molluscan species occurring in the area are endemic to Chile, most of them with restricted geographic distributions along the coastal zones, and none of them are currently protected by law. Further sampling in northern Chile will probably reveal more snail species to be discovered and described.
11 citations
TL;DR: The fossil record of terrestrial pulmonate mollusks in Argentina is scarce and mainly restricted to the Quaternary, so the record of these taxa is of paramount importance because it constitutes the oldest record of Gastrocopta and Succinea in Argentina, and the first record of Bostryx in Mendoza Province.
Abstract: . Numerous fossil gastropods have been recorded in an edaphic level of the middle section of the the Aisol Formation (Mendoza Province, Argentina). This stratigraphic section bears an association of fossil mammals suggesting an early Pliocene age (possible Montehermosan SALMA). Up to four taxa of gastropods have been identified, belonging in Succinea Draparnaud (Succineidae), Gastrocopta Wollaston (Vertiginidae), Bostryx Troschel (Bulimulidae), and a new species of Radiodiscus Pilsbry and Ferriss (Charopidae). The fossil record of terrestrial pulmonate mollusks in Argentina is scarce and mainly restricted to the Quaternary. Thus, the record of these taxa is of paramount importance because it constitutes the oldest record of Gastrocopta and Succinea in Argentina, the first record of Bostryx in Mendoza Province, and the first record of the family Charopidae (Radiodiscus sanrafaelensis nov. sp.) in Pliocene deposits of Argentina.
10 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 1 |
| 2017 | 2 |
| 2016 | 1 |
| 2015 | 3 |
| 2014 | 3 |
| 2013 | 1 |