Tag Archive for: Macaronesia

Ripkeniella anxoi (Gastropoda: Geomitridae), a new species from La Gomera, Canary Islands

Author: C.J.P.J. (Kees) Margry
Basteria, 88 (2): 180-186

Abstract

After the finding of mature specimens of Ripkeniella petrophila and the discovery of a larger species with characteristics of the same genus, the diagnosis of the genus is supplemented, Ripkeniella anxoi is described as a new species and similarities and differences of body, shell, genital anatomy, jaw, radula, ecology and distribution area of the two species are given.

Article

Download articleArtikel <em>Ripkeniella</em> <em>anxoi</em> (Gastropoda: Geomitridae), a new species from La Gomera, Canary Islands

Canaridiscus dollyae spec. nov. (Gastropoda: Discidae), a new fossil species from La Gomera (Canary Islands)

Author: C.J.P.J. (Kees) Margry
Basteria, 88 (2): 229-232

Abstract

On La Gomera fossil shells of a new mollusc species were found that, due to the discoidal shape and large umbilicus, bear a strong resemblance to species of the genus Canaridiscus. The new species is described and is compared with other Canarian species of the genus.

Article

Download articleArtikel <em>Canaridiscus dollyae</em> spec. nov. (Gastropoda: Discidae), a new fossil species from La Gomera (Canary Islands)

Gomerella parvisulcata gen. nov. spec. nov. (Gastropoda: Pristilomatidae), a new fossil species from La Gomera (Canary Islands)

Author: C.J.P.J. (Kees) Margry
Basteria, 88 (2): 242-245.

Abstract

On La Gomera, fossil shells of an obviously new small species were found. Due to the similarity with Vitrea and Spelaeopatula, the new species has been classified in the Pristilomatidae. Based on four specimens, the species is described in the new genus Gomerella. The most striking feature is a pseudosuture on the umbilicus side of the body whorl.

Article

Download articleArtikel <em>Gomerella</em> <em>parvisulcata</em> gen. nov. spec. nov. (Gastropoda: Pristilomatidae), a new fossil species from La Gomera (Canary Islands)

Four new fossil Napaeus species (Gastropoda: Enidae) from La Gomera (Canary Islands)

Author: C.J.P.J. (Kees) Margry
Basteria, 88 (1): 29-37

Abstract

Four fossil species of Napaeus from various parts of the Canary Island of La Gomera are new to science. The species are described and compared with other species of this genus. Including these four species, there are now 31 Napaeus species known from La Gomera and 76 species from the whole Canary archipelago. La Gomera is as such by far the most diverse island with respect to Napaeus.

Article

Download articleArtikel Four new fossil <em>Napaeus</em> species (Gastropoda: Enidae) from La Gomera (Canary Islands)

Hemicycla nisamarae (Gastropoda: Helicidae), a new species from La Gomera (Canary Islands)

Authors: C.J.P.J. (Kees) Margry, F. (Frank) Swinnen, M. (Miguel) Artiles Ruiz
Basteria, 88 (1): 76-84

Abstract

Hemicycla nisamarae spec. nov. is described and compared with other Hemicycla species from the Canarian Archipelago. Information is given about the shell, external morphology, genitals, jaw, radula, ecology, and distribution.

Article

Download articleArtikel <em>Hemicycla</em> <em>nisamarae</em> (Gastropoda: Helicidae), a new species from La Gomera (Canary Islands)

Notes on the nomenclature of the Macaronesian Patella candei d’Orbigny complex, with special reference to Patella ordinaria Mabille and Patella crenata Gmelin (Patellogastropoda, Patellidae)

Author: Freek F.L.M. Titselaar
Basteria, 83 (4/6): 158-165

Abstract

Patella candei d’Orbigny, 1840 is a taxon reported from the Azores, the Canary Islands, Madeira and the Selva­gens Islands. The taxonomic status of the species has been the subject to several interpretations. Christiaens (1974) introduced the so-called P. candei complex encompassing four subspecies based on differences in shell morphology. Titselaar (1998) elevated two subspecies of the P. candei complex to species rank. Following recent morphometric and genetic research it has been recommended to elevate all four subspecies of the complex to full species rank. However, the nomenclature of these four species remained partly unclear. Here we show that the following names should be used: P. candei (predominantly Selvagens), P. gomesii Drouët, 1858 (Azores), P. tenuis Gmelin, 1791 (Madeira) and P. ordinaria Mabille, 1888 (Canary Islands). A lectotype is selected for P. crenata Gmelin, 1791 (resulting in its synonymy with P. caerulea Linnaeus, 1758) and for P. teneriffae Mabille, 1888 (resulting in its synonymy with P. ulyssiponensis Gmelin, 1791).

Article

Download articleArtikel Notes on the nomenclature of the Macaronesian <em>Patella</em> <em>candei</em> d’Orbigny complex, with special reference to <em>Patella</em> <em>ordinaria</em> Mabille and <em>Patella</em> <em>crenata</em> Gmelin (Patellogastropoda, Patellidae)