Tag Archive for: Gastropoda

Some notes on the genus Schileykiella Manganelli, Sparacio & Fo. Giusti, 1989 (Gastropoda, Helicoidea: Canariellidae) from Tunisia and Libya

Authors: F. Liberto, A. Abusneina, A. Gregorini, M. Colomba
Basteria, 88 (1): 25-28Published:

Abstract

Building on the recent re-allocation of Helix sordulenta to the genus Schileykiella, this paper provides further insights into the taxonomy, palaeontology, and distribution of Schileykiella in North Africa. Additionally, the taxon Helix mendicaria L. Pfeiffer, 1860, described from Tunisia, is here proposed as a junior synonym of Schileykiella sordulenta (Morelet, 1851), and the taxon Xerophila chadiana darnensis Hey, 1955, described from Derna (Cyrenaica, Libya), is identified as a possible congeneric fossil species.

Article

Download articleArtikel Some notes on the genus <em>Schileykiella</em> Manganelli, Sparacio & Fo. Giusti, 1989 (Gastropoda, Helicoidea: Canariellidae) from Tunisia and Libya

The family Architectonicidae J. E. Gray, 1850 (Gastropoda: Heterobranchia) from the lower Serravallian of Rohožník (Vienna Basin, Central Paratethys): new evidence and description of a new species

Author: R. Biskupič
Basteria, 88 (1): 43-53Published:

Abstract

This work presents new records of the Architectonicidae from the middle Miocene of the Central Paratethys Sea. The shells were obtained from the lower Serravallian (upper Badenian) marine sediments revealed at the fossiliferous site Rohožník – Konopiská, situated in the eastern Vienna Basin (Slovakia). The herein surveyed architectonicids comprise two species, of which Nipteraxis transmontanus spec. nov. is established as new, and Spirolaxis cornicula (O. Boettger, 1902) is recorded for the first time from Slovakia, representing the first occurrence of the species in the upper Badenian of the Central Paratethys realm. Paleoecology of both taxa is shortly commented on and compared with the habitat preferences of similar species. In the benthic assemblages at Konopiská, the architectonicids were associated with ahermatypic scleractinian corals, which most probably represented their potential hosts.

Article

Download articleArtikel The family Architectonicidae J. E. Gray, 1850 (Gastropoda: Heterobranchia) from the lower Serravallian of Rohožník (Vienna Basin, Central Paratethys): new evidence and description of a new species

Cerithiopsidae (Gastropoda) from the Cape Verde archipelago collected during the cancap expeditions

Authors: L. Hoffman, B. van Heugten, J. Goud
Basteria, 88 (1): 104-128Published:

Abstract

Species in the family Cerithiopsidae are spongivores that live in all oceans from the littoral to the upper bathyal zone. This paper discusses the cerithiopsid species that were collected during the Dutch expeditions CANCAP-VI (1982) and CANCAP-VII (1986) to the Cape Verde archipelago. Fourteen species were identified in the cancap samples. Six new species of Cerithiopsis are proposed: C. sal spec. nov., C. luzia spec. nov., C. vicente spec. nov., C. cima spec. nov., C. boavista spec. nov. and C. saotiago spec. nov. Five existing species of the genus Cerithiopsis Forbes & Hanley, 1850 were redescribed and illustrated: Cerithiopsis laurauae, C. albae, C. carmelae, C. chechoi and C. eolo. The identification of one species was uncertain: Cerithiopsis cf. diadema. In addition, a new species is described in the genus Dizoniopsis Sacco, 1895: D. razo spec. nov. Cerithiopsis leopoldoi Espinosa & Ortea, 2021 is placed in the genus Dizoniopsis. The cerithiopsid species in our material are distributed throughout the archipelago; the oceanic gaps between the islands (10 – 100 km) have not been a barrier in the distribution of the species. None of the cerithiopsid species known from the Cape Verde archipelago have been found on the NW African coast, the Canary Islands, Madeira, the Azores or Ascension. A high degree of endemism is likely for the cerithiopsids from the Cape Verde archipelago.

Article

Download articleArtikel Cerithiopsidae (Gastropoda) from the Cape Verde archipelago collected during the cancap expeditions

Completed description of Bhutanese Tibetoradix cf. hookeri (Gastropoda, Pulmonata, Lymnaeoidea), with species-specific, environmentally induced decollation

Authors: E. Gittenberger, K. Tobgay
Basteria, 87 (2): 139-140Published:

Abstract

In two samples of Tibetoradix cf. hookeri, collected at different altitudes, the shells differ by being decollated at the highest locality and not so at the lowest. Potential decollation is hypothesized to be an adaptive character state enabling a longer lifespan at higher altitudes in the Himalaya.

Article

Download articleArtikel Completed description of Bhutanese <em>Tibetoradix</em> cf. <em>hookeri</em> (Gastropoda, Pulmonata, Lymnaeoidea), with species-specific, environmentally induced decollation

Philinissima denticulata (J. Adams, 1800), new for the Netherlands (Gastropoda, Heterobranchia: Aglajidae)

Authors: J.G.M. Raven, S.J. van Leeuwen
Basteria, 87 (2): 113-115Published:

Abstract

During 2021 ‘Stichting Duik de Noordzee Schoon’ (DDNZS Foundation, or Dive to Clean the North Sea) organised two campaigns of dive teams recovering fishing nets and other materials from wrecks in the North Sea. From a sample of seabed sediment next to the wreck of SS Ara, north of Schiermonnikoog, the Netherlands, a single shell of Philinissima denticulata (J. Adams, 1800) was recovered. This is the first record for the Netherlands, but it is expected to have a wider distribution in the area.

Article

Download articleArtikel <em>Philinissima denticulata</em> (J. Adams, 1800), new for the Netherlands (Gastropoda, Heterobranchia: Aglajidae)

The Inella group (Gastropoda: Triphoridae, Triphorinae) in the south-western Iberian Pliocene: first records with two new species

Authors: B.M. Landau, P.A.J. Bakker, C. Marques da Silva
Basteria, 87 (2): 116-126Published:

Abstract

In this paper we record a species of the Inella group for the first time in the Pliocene Mediterranean with the description of Inella bentae spec. nov. from the Estepona Basin, and Inella spec. and Triphora (s. l.) freixiensis spec. nov. from the Mondego Basin.

Article

Download articleArtikel The <em>Inella</em> group (Gastropoda: Triphoridae, Triphorinae) in the south-western Iberian Pliocene: first records with two new species

A new hydrobiid genus and species from Peloponnese (Greece), with a note on Achaiohydrobia (Gastropoda: Hydrobiidae)

Authors: P. Glöer, HJ. Hirschfelder
Basteria, 87 (2): 127-129Published:

Abstract

A new genus and species of Hydrobiidae is described from north central Peloponnese peninsula, Greece: Tridentalia lykaia. Additionally a note on Achaiohydrobia Falniowski, 2021 is given: Achaiohydrobia moreana Hofman & Grego, 2021 is a junior synonym of Bythinella corrosa Glöer & Hirschfelder, 2020.

Article

Download articleArtikel A new hydrobiid genus and species from Peloponnese (Greece), with a note on <em>Achaiohydrobia</em> (Gastropoda: Hydrobiidae)

New northern Atlantic species of the family Fissurellidae (Gastropoda, Vetigastropoda)

Authors: L. Hoffman, B. van Heugten, J. Goud
Basteria, 87 (2): 150-155Published:

Abstract

Four species of the family Fissurellidae were identified from two deep bathyal samples from the Cape Verde Islands and on the Mid-Atlantic Ridge. Cornisepta magna spec. nov. Is described from off Sao Nicolau, Cape Verde islands. Cornisepta microphyma, Profundisepta bipolar spec. nov. and an undescribed species of the genus Fissurisepta were found on the Mid Atlantic Ridge.

Article

Download articleArtikel New northern Atlantic species of the family Fissurellidae (Gastropoda, Vetigastropoda)

Description of a new species of Calliostoma (Gastropoda, Vetigastropoda: Calliostomatidae) from the Cape Verde Islands

Authors: L. Hoffman, B. van Heugten, J. Goud
Basteria, 87 (2): 156-161Published:

Abstract

Calliostoma cancapae sp. nov. is described from the Cape Verde Islands. Empty shells of the new species were collected from 41 sites in the depth range 35-3250 m during the CANCAP-vi (1982) and CANCAP-vii (1986) expeditions.

Article

Download articleArtikel Description of a new species of <em>Calliostoma</em> (Gastropoda, Vetigastropoda: Calliostomatidae) from the Cape Verde Islands

Description of Scabrotrophon pratasensis spec. nov., a new Trophoninae (Gastropoda: Muricidae) from the South China Sea

Authors: R. Houart, M. Chino
Basteria, 87 (2): 206-212Published:

Abstract

A new species of Muricidae assigned to the genus Scabrotrophon McLean, 1996 is described from the South China Sea. It is compared with nine species, six assigned to Scabrotrophon, two to Nipponotrophon Kuroda & Habe, 1971, a related genus and one to Leptotrophon Houart, 1995. All are extensively illustrated. Scabrotrophon hawaiiensis Houart & Moffitt, 2010 is assigned to the genus Boreotrophon P. Fischer, 1884.

Article

Download articleArtikel Description of <em>Scabrotrophon pratasensis</em> spec. nov., a new Trophoninae (Gastropoda: Muricidae) from the South China Sea

A review of the Diapheridae of the Philippines (Gastropoda, Stylommatophora: Streptaxoidea)

Authors: B. Páll-Gergely, K. Auffenberg, V. Gojšina
Basteria, 87 (2): 225-299Published:

Abstract

While a few species of the genus Diaphera Albers, 1850 are reported in mainland Southeast Asia (Thailand, southern China, northern Vietnam, Myanmar), most species occur in the Philippines. In this paper we provide photographs of all Philippine species, and mostly based on the material of the Florida Museum of Natural History, we describe elevennew species and a subspecies as follows: Diaphera costatuba Páll-Gergely & Auffenberg, spec. nov., D. cyclostoma Páll- Gergely, spec. nov., D. gracilimajor Páll-Gergely, spec. nov., D. graciliminor Páll-Gergely, spec. nov., D. orca Páll-Gergely & Auffenberg, spec. nov., D. princessa Páll-Gergely, spec. nov., D. thompsoni Páll-Gergely & Auffenberg, spec. nov., D. tubella Páll-Gergely & Auffenberg, spec. nov., D. vespertilio Páll-Gergely, spec. nov., D. neolophia Páll-Gergely, spec. nov., D. bacillum Páll-Gergely & Auffenberg, spec. nov., D. hidalgoi skrik Páll-Gergely, subspec. nov. With this, the number of Diaphera species increases to 70, 52 of them inhabiting the Philippines. The juvenile apertural barriers are described for the first time in several species, which can be used to hypothesize about the evolutionary relationships of species and species groups within Diaphera. Biogeography of the genus is briefly discussed. The reproductive anatomy and radula morphology of four species are described. An epiphallus was found for the first time in the family Diapheridae.

Article

Download articleArtikel A review of the Diapheridae of the Philippines (Gastropoda, Stylommatophora: Streptaxoidea)

High diversity of Endothyrella (Gastropoda, Pulmonata, Plectopylidae) in Bhutan, with a description of four new species

Authors: E. Gittenberger, C. Gyeltshen, K. Tobgay, S. Sherub
Basteria, 86 (2): 55-71Published:

Abstract

Recent fieldwork in Bhutan resulted in the discovery of 4 endemic species of Endothyrella that are described as new to science, viz. E. barnai Gittenberger & Sherub, E. manasensis Gittenberger & Sherub, E. pterocallus Gittenberger, Gyeltshen & Tobgay, and E. trimagnipili Gittenberger, Gyeltshen & Tobgay. This results in a total of 9 Endothyrella species for Bhutan, 7 of which are not known from elsewhere. The new species are described and additional data are presented for the Endothyrella species dealt with in an earlier paper. A revised identification key for the Bhutanese species, based on shell characters, is added. The diversity in shell size and struc­ture is discussed and 4 species groups are provisionally dis­tinguished on the basis of the structure of the genital tracts.

Article

Download articleArtikel High diversity of <em>Endothyrella</em> (Gastropoda, Pulmonata, Plectopylidae) in Bhutan, with a description of four new species

The genera Dioryx and Cycloryx (Gastropoda, Caenogastropoda, Alycaeidae) in Bhutan, with a description of four new species

Authors: E. Gittenberger, C. Gyeltshen, K. Tobgay, S. Sherub
Basteria, 86 (2): 72-82Published:

Abstract

Samples of the genera Dioryx and Cycloryx from Bhutan are identified or described as new species. Next to the wide­spread D. urnula, 7 species of Cycloryx are recognized, 4 of which are endemic to Bhutan and new to science, viz. C. pemaledai Gittenberger & Sherub, spec. nov., C. globhu­tanus Gittenberger & Sherub, spec. nov., C. haumbiclausus Gittenberger & Gyeltshen, spec. nov., and C. sajumbiclausus Gittenberger & Gyeltshen, spec. nov. An identification key is provided for Cycloryx species. Cycloryx summus (Godwin-Austen, 1914), which was described from “Rechila Peak, Western Bhutan”, is not accepted as a Bhutanese species since its type locality is most probably in West Bengal, out­side the present borders of Bhutan.

Article

Download articleArtikel The genera <em>Dioryx</em> and <em>Cycloryx</em> (Gastropoda, Caenogastropoda, Alycaeidae) in Bhutan, with a description of four new species

Additions and corrections to the gastropod fauna of the Pliocene of Estepona, south-western Spain, 5

Authors: B.M. Landau, H. Mulder
Basteria, 86 (2): 153-173Published:

Abstract

Seventeen small species of gastropod are added to the fauna of the Lower Piacenzian Pliocene of Estepona, of which six are described as new: Skenea gofasi spec. nov., Papuliscala spinosa spec. nov., Narrimania saldubensis spec. nov., Ophieulima lobilloensis spec. nov., Talassia plioalboranensis spec. nov., and Specula estebbunensis spec. nov.

Article

Download articleArtikel Additions and corrections to the gastropod fauna of the Pliocene of Estepona, south-western Spain, 5

Description of two new species of the genus Reticunassa (Gastropoda: Nassariidae)

Author: H.H. Kool
Basteria, 86 (1): 33-36Published:

Abstract

Two new species of the genus Reticunassa, R. goudi spec. nov. and R. microstriata spec. nov., from the Western Pacific are described.

Article

Download articleArtikel Description of two new species of the genus <em>Reticunassa</em> (Gastropoda: Nassariidae)

Morelet’s contributions to malacology: further additions and corrections

Authors: A.S.H. Breure, J.D. Ablett
Basteria, 86 (1): 44-47Published:

Abstract

Further additions and corrections are presented to update the book on Pierre Marie Arthur Morelet, which was pub­lished in 2018. The most important addition is a missing letter that was recently found. The main corrections are related to the new molluscan taxa introduced by him, with consequences for the indices. Recent literature that pro­voked these corrections is listed.

Article

Download articleArtikel Morelet’s contributions to malacology: further additions and corrections

Description of a new Canariella P. Hesse, 1918 (Stylommatophora: Canariellidae) from the Quaternary of Fuerteventura, Canary Islands

Author: K. Groh
Basteria, 85 (2): 126-129Published:

Abstract

A new fossil species of the genus Canariella, C. gerti, clas­sified in the subgenus Majorata Alonso & Ibáñez, 2006, is described from Quaternary eolianites from the northwest­ern part of Fuerteventura, Canary Islands. Its relationships to other taxa of the family occurring on the Canary Islands and especially on Fuerteventura are discussed.

Article

Download articleArtikel Description of a new <em>Canariella</em> P. Hesse, 1918 (Stylommatophora: Canariellidae) from the Quaternary of Fuerteventura, Canary Islands

Triphoridae (Gastropoda) from the island of Saint Helena and Ascension Island, with the description of three new species

Authors: P.A.J. Bakker, F. Swinnen
Basteria, 85 (2): 130-144Published:

Abstract

The Triphoridae (Gastropoda: Caenogastropoda: Triphoroidea) of the islands of Saint Helena and Ascension have not been thoroughly studied since the first records of this family were made by Edgar Albert Smith in 1890. Since then only five species of Triphora have been known from Saint Helena and since 1975 only a single species from Ascension Island. In this paper we identify three new species records for Saint Helena (Metaxia elizabethclinghamae spec. nov., Nanaphora renevanwalleghemi spec. nov. and Inella spec.) and four for Ascension Island (Cosmotriphora arnoldoi (Faber & Moolenbeek, 1991), Inella recta (E.A. Smith, 1890), Triphora albanoi spec. nov. and Triphora s.l. spec.). Three of the newly recorded species are described as new species.

Article

Download articleArtikel Triphoridae (Gastropoda) from the island of Saint Helena and Ascension Island, with the description of three new species

The green cellar slug Limacus maculatus (Kaleniczenko, 1851) (Gastropoda, Pulmonata, Limacidae) new for the Netherlands

Authors: W. Langeraert, P.G. van de Haar, C.J.P.J. Margry
Basteria, 85 (1): 6-12Published:

Abstract

This paper presents the first report of the green cellar slug Limacus maculatus (Kaleniczenko, 1851) from the Netherlands. Suspicions were raised after pictures of several specimens were put on the online data platform Waarneming.nl in November 2020 under the name of L. fl avus (Linnaeus, 1758), a similar species already known from the Netherlands. Further investigation of external and internal components revealed that the specimens indeed belong to L. maculatus. This article describes this first discovery of L. maculatus in the Netherlands and provides a thorough discussion of the anatomical characteristics.

Article

Download articleArtikel The green cellar slug <em>Limacus maculatus</em> (Kaleniczenko, 1851) (Gastropoda, Pulmonata, Limacidae) new for the Netherlands

Two high-altitude species of molluscs, new for Bhutan (Bivalvia, Sphaeriidae – Gastropoda, Lymnaeidae)

Authors: E. Gittenberger, K. Tobgay, C. Gyeltshen, H. Nesemann
Basteria, 85 (1): 13-17Published:

Abstract

Pisidium stewarti and Tibetoradix cf. hookeri, two species that are known to occur at conditions that nowadays prevail at high altitudes, are reported from Bhutan for the first time. The records mark the southeastern border of the known recent occurrences for both species.

Article

Download articleArtikel Two high-altitude species of molluscs, new for Bhutan (Bivalvia, Sphaeriidae – Gastropoda, Lymnaeidae)