Bruno Sabelli

Bruno Sabelli
University of Bologna | UNIBO · Department of Biological, Geological and Environmental Sciences BiGeA

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64
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Publications

Publications (64)
Article
Full-text available
New data on 52 non-indigenous mollusks in the Eastern Mediterranean Sea is reported. Fossarus sp. (aff. aptus sensu Blatterer 2019), Coriophora lessepsiana Albano, Bakker & Sabelli, sp. nov. , Cerithiopsis sp. aff. pulvis, Joculator problematicus Albano & Steger, sp. nov. , Cerithiopsis sp., Elachisina sp., Iravadia aff. elongata, Vitrinella aff. V...
Article
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Mesophotic assemblages are the next frontier of marine exploration in the Mediterranean Sea. Located below recreational scuba diving depths, they are difficult to access but host a diverse array of habitats structured by large invertebrate species. The Eastern Mediterranean has been much less explored than the western part of the basin and its meso...
Article
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We revise the type specimens of 132 nominal species of worldwide Triphoridae stored in the Natural History Museum of the United Kingdom (NHMUK), London. We provide the species name in its original combination, followed by bibliographic details of the original description, the location of the known type material, the original description (and its tr...
Article
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Distribution shifts of intertidal species have been thoroughly described for several organisms on the Atlantic coasts of Europe, but comparatively less work has been conducted in the Mediterranean Sea. However, such semi-enclosed basins react faster to global change. The periwinkle Echinolittorina punctata is a littorinid gastropod which has shown...
Article
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Species are fundamental units in evolutionary biology. However, defining them in taxonomically problematic groups requires integration of independent sources of information in order to develop robust hypotheses for taxonomic classification. Here, we propose an integrative framework for species delimitation in the Mediterranean species of the genus...
Article
The importance of natural history museums is often underappreciated, but they provide society with a number of services. Among these, they are a fundamental tool for assessing extinction rates and range contractions, or the only way to access species extinct in historical times. In this perspective, we describe here the collection of Unionida of th...
Poster
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We investigated the null hypothesis that Luciola italica is one species across the Mediterranean by using molecular taxonomy to examine DNA differences in species collected from Portugal, France, Italy and Greece. The partial sequence of the mitochondrial cytochrome oxidase I (COI) gene and the majority of the luciferase (LUC) gene were used to inv...
Chapter
Full-text available
The present Mediterranean molluscan biodiversity, comprising more than 2,000 species, was shaped by the multiple events connected with the geodynamic and climatic evolution of this basin in the last million years coupled with the process of biological evolutionary processes on the global scale. Climate, hydrology, basin physiography, and connection...
Article
While central and northern European land-mollusc forest communities have received considerable research effort, southern Europe has enjoyed much less attention. Despite the extent of Italian forests in terms of altitude and latitude, there has been only one previous quantitative study of their molluscan faunas. This paper describes the molluscan co...
Article
Size-frequency distributions can support reliable inferences concerning population dynamics of brachiopods, but only a few data are available so far. In this study, length and width frequency distributions of dead specimens of the Recent brachiopods Joania cordata and Argyrotheca cuneata from the Marine Protected Area ‘Secche di Tor Paterno’, Centr...
Article
The molluscan assemblages inhabiting the leaf and rhizome layers of Posidonia oceanica were studied in a deep water (-24/26 m) settlement of a highly heterogeneous substratum on an off-shore reef in the central Tyrrhenian Sea. This is one of the few works dealing with the rhizome layer and with Posidonia oceanica that has settled on hard substrata....
Article
Predator holes in empty shells of Joania cordata and Argyrotheca cuneata (Brachiopoda: Megathyrididae) collected in the marine protected area “Secche di Tor Paterno”, central Tyrrhenian Sea, Italy (41°35′N–12°20′E, at depths of 20–28 m), were analyzed. Predation intensity was low but appreciable, with the more common species J. cordata preyed on mo...
Article
Full-text available
Although molluscs feature prominently in the semi-popular and academic literature on marine biodiversity, field surveys largely ignore the small and rare species that form the majority of marine molluscan diversity. As a result of a massive effort to sample the benthic molluscs of a complex tropical coastal environment, 23,238 gastropod specimens r...
Article
The agreement between the death (DA) and the living (LA) molluscs assemblages is analyzed in an infralittoral off-shore reef in the Central Tyrrhenian Sea ("Secche di Tor Paterno" Marine Protected Area) with extensive coralligenous and Posidonia oceanica biocoenoses. These biocoenoses host a highly diverse assemblage of small sized species. The wor...
Article
Full-text available
This work represents an attempt to resolve the confused and contradictory taxonomy of Mediterranean chitons of the genus Acanthochitona by analysing morphological (SEM observations of aesthetes, radula and girdle) and molecular data (COI, 12S, ITS1). Both analyses support the validity of the three species, Acanthochitona fascicularis, A. crinita an...
Article
The Brachiopoda of the mfralittoral substrates of the Marine Protected Area "'Secche di Tor Patemo", Central Tyrrhenian Sea, are described and illustrated. Four species arc reported: Novocrania anomala, Megathiris detruncata, Argyrotheca cuneala and Joania cordata. The diversity is lower than the potential Eiufralittoral Mediterranean brachiopod fa...
Article
Full-text available
The chitons studied here are all from the coral reefs in the Tuléar area, SW Madagascar. This second note on Tuléar chitons benefits of the availability of well preserved complete specimens whereas the previous one (Dell'Angelo et al. 2004) was mainly based on single valves. A small collection of living-collected Polyplacophora from shallow coral r...
Article
Data suggest that the prosobranch gastropod Echinolittorina punctata (Gmelin, 1791) (Mollusca, Gastropoda) has extended its range northwards along the Italian coastline due to climate variability in marine conditions. Its ease of identification and mesolittoral habitat suggest this species may be a new practical indicator of Mediterranean Sea chang...
Article
Genetic analysis based on two molecular markers, the nuclear Internal Transcribed Spacer 1 (ITS1) and the mitochondrial cytochrome oxidase subunit 1 (COI), was used to investigate the phylogenetic relationship between two populations of the eurybathic species Gryphus vitreus (Born, 1778) (Brachiopoda) across the Gibraltar sill. No genetic different...
Article
Anadara demiri (Piani, 1981) is an alien species in the Mediterranean Sea extending its range from Turkey westernly to the Adriatic Sea, where it is locally abundant. The species was first identified as Arca amygdalum Philippi, 1847 in the 1970s. The locus typicus of A. amygdalum is China. This first identification has never been discussed and the...
Conference Paper
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Dall'inizio degli anni '80 presso il Museo di Zoologia dell'Università di Bologna si è venuta realizzando, ad opera degli autori, una ricchissima collezione di molluschi, prevalentemente marini, sia attuali che fossili, con lo scopo di costituire un grosso nucleo di riferimento per gli studi di ordine sistematico, biogeografico e filogenetico nell'...
Article
Diencephalic habenular nuclei of several species of Chondrohycthes and Ostehycthes fishes were investigated in order to ascertain their asymmetry. Raja asterias, Squalus acanthias, Mustels mustelus, Scyliorhinus canicula and Scyllium stellare show the left habenula larger than the right, as occurs in the elasmobranchs till now investigated. Among t...
Article
Reproductive biology of Nassarius reticulatus is well known, but informations about Nassarius mutabilis are scarce; we have so undertaken a macroscopical and histological study to clear the reproductive biology of this species.
Article
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Rajidae (colloquially known as skates and rays) experienced multiple and parallel adaptive radiations allowing high species diversity and great differences of species composition between regional faunas. Nevertheless, they show considerable conservation of bio-ecological, morphological and reproductive traits. The evolutionary history and dispersal...
Article
Full-text available
Coarse-grained skeletal sediments forming around coral reefs in the region of Ifaty-Tuléar (Madagascar, western Indian Ocean, c. 23°30’ Lat S) provided disarticulated plates belonging to 16 species of Polyplacophora (chitons). Most of the species recognised in our samples were already known from Madagascar. Detailed SEM illustration of tegmentum ch...
Article
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A living specimen of the rare deep-sea polyplacophoran Bathychiton biondii Dell’Angelo & Palazzi, 1988 was found in a dredge sample from the Santa Lucia Bank, Ligurian Sea. Since the specimen was observed in association with the sponge Hamacantha johnsoni (Bowerbank, 1864), its potential spongivourous diet was evaluated by examining the contents of...
Article
The Northeast Atlantic and Mediterranean skates (Rajidae) showed remarkable species diversity but with high morphological and ecological conservatism. Since skates are particularly vulnerable to the bottom trawl fishery, species-specific demographic surveys as well as studies defining life history and evolutionary traits are important in prioritisi...
Article
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The genus Austrodaphnella Laseron, 1954, previously known only from Australian waters, is here reported from the Arabian Peninsula. Two species occur: A. yemenensis new species, from Yemen, Southern Red Sea, and A. alcestis (Melvill, 1906) new combination, a deep water species known only from the Gulf of Oman. SEM photographs of both species are pr...
Article
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Epitonium (Asperiscala?) oliverioi new species (Gastropoda, Ptenoglossa, Epitoniidae) characterized by two different teleoconch microsculptures is described from the Tuléar region (SW Madagascar). A brief comparison of its spawn and radular morphology with those known of other epitoniids is also given in order to provide further characters for spec...
Article
Iphitus robertsi, new species, is described on the basis of nine specimens collected in the northern Gulf of Mexico. This new species, which differs from its six congeners in having a bicarinate shell with weakly cancellate sculpture, represents the first record of this genus in the Gulf of Mexico. The co-occurence of this species with deep-sea scl...
Article
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The record of the fossil representatives of the family Juliidae is updated. The new genus Candinia is proposed, in the subfamily Juliinae, for two fossil species somewhat intermediate between Julia and Berthelinia. The new species Candinia pliocaenica is recorded from the lower Pliocene shallow marine deposits near Siena (Tuscany, Italy). This is t...
Article
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The record of the fossil representatives of the family Juliidae is updated. The new genus Candinia is proposed, in the subfamily Juliinae, for two fossil species somewhat intermediate between Julia and Berlhelinia. The new species Candinia pliocaenica is recorded from the lower Pliocene shallow marine deposits near Siena (Tuscany, Italy). This is t...
Article
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Deep-sea dredging off the eastern margin of Sardinia (Tyrrhenian Sea), carried out within the frame of the project De Profundis, has yielded important new data on late Quaternary (glacial Pleistocene to Present) deep-sea benthic molluscan fauna of the Mediterranean basin. Here we report on the molluscs from the assemblage recovered at station DP91-...
Article
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The species of marine Mollusca from Mozambique described by G.G. Biamnconi (1809-1878) and preserved in the Zoological Museum of the University of Bologna are discussed.
Article
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A new species, Yoldiella seguenzae (Bivalvia, Nucu-loida), from a deep sea community off the north east coast of Sardinia (Mediterranean Sea), is described. Morphometrical and statistical comparison with the very similar Yoldiella philippiana (Nyst, 1845), and general morphological comparison with other Mediterranean and Atlantic species support th...
Article
Living specimens of Fissurellidae (Mollusca: Archaeogastropoda) Emarginula pustula Thiele in Kuester, 1913 have been collected in Posidonia beds of Tyrrenian sea. Morphology of radulae, protoconch and soft body are illustrated and discussed.
Article
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Taviani, M., Sabelli, B. & Candini, F. 1990 04 15: A fossil Cenozoic monoplacophoran. Lethaia, Vol. 23, pp. 213–216. Oslo. ISSN 0024–1164. A few shells of Micropilina (Mollusca, Monoplacophora) have been found in middle Pleistocene (Sicilian) epibathyal clays at Archi (Reggio Calabria, southern Italy). The species appears conchologically indistingu...
Article
Deltaic populations of Conopeum seurati from diverse environmental settings have variable phenotypes related to strong competitive regimes and to dissolved oxygen minima. Under extremely stressful conditions, the poorly canalized phenotype of C. seurati displays new additional features such as kleistozooids (kleistós= closed) and chaotic celleporoi...
Article
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The fate of the Upper Miocene stenoecious marine fauna of the Mediterranean basin is discussed in front of the Messinian salinity crisis based upon comparison of pre- and post-Miocene mollusk records. It is hypothesized that many Mediterranean taxa recorded in both the Miocene and Pliocene of this basin likely survived the crisis outside the basin...
Article
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The genus Nodilittorina VON MARTENS, 1897, is represented in the Red Sea by the follou~ing three species: N. millegrana, N. natalensis and N. subnodosa. The conchological and anatomical features show that N. subnodosa is attributable to the subgenus Nodilittorina S.S. The finding of a fossi1 specimen of Nodilittorina sp. from the Pleistocene raised...
Article
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Some specimens of Epitonium sp. in different growth stage, were found, together with egg mass, on the undersurface of a specimen of Fungia paumotensis. It is the first time that such a species of madreporian is reported to be associated with Epitoniids. Moreover no similar records were previously reported for the Red Sea. We suppose that the relati...
Article
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The cowry Cypraea (Talparia) exusta Sowerby, 1832, (Mollusca, Gastropoda) has been found in the Red Sea in Modern (fresh but dead shell of exceptional large size) and fossil (last interglacial) coral reef habitats in the Sharm Obhor area, Saudi Arabia. This is the first paleontological documentation of this rare and localized species.
Article
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The deep water gastropod genus lphitus Jeffreys, 1883, previously known only for the Eastern Atlantic Ocean Jeffreys 1883, Dautzenberg & Fischer 1896, Bouchet 1976) and New Zealand (Beu & Clirno 1974, Beu 1978) is recorded (empty shells only) for the first time in the Mediterranean Sea (Sicily channel) from a submerged assemblage at a depth of 690-...
Article
Histological study of the acini of the gonad of Ovatella myosotis (Draparnaud) (Gastropoda Pulmonata Basommatophora) and a graphic reconstruction of them lead us to two main results: a) A proximo-distal maturity gradient of germ cells is clearly shown. This datum shows that even this primitive marine basommatophoran has the well-known model of orga...
Article
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The soft bottom mollusk cornmunities inhabiting the Northern Po River Delta plain, have been studied in relation to some abiotic controlling factors. The location of a sulfide layer near the water-sediment interface inside the ponds ('valli ') and lagoons ('paludi'), counteracts the diffusion in these areas of many deep and superficial infaunal spe...
Chapter
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This article reports upon the results of an experimental trawling station on the norther Adriatic continental shelf (in Italian)
Conference Paper
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The marine molluscs fauna inhabiting the semi-enclosed Gulf of Gabes, Tunisa (Southern Mediterranean) is considered to contain a large number of putative molluscs based upon shell morphology, only known in the Holocene-Recent fauna of this shallow water area. The potential role of this area as a 'species factory' is discussed (in French)
Article
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The malacological collection hosted in the Zoological Museum of the University of Bologna, Italy,contains the mollusks collected by Fornasini from Mozambique and studied by the Bolognese naturalist Giovanni Giuseppe Bianconi (1809- 1878), who published the "Specimina Zoologica Mosambicana." describing some new species among including a rare gastrop...
Article
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11 species of Polyplacophora were found in sandy deposits from the basa1 part of the Pleistocene marine series of the Stirone River (Parma, Italy) . This complex represents the richest chiton-fauna hitherto reported from a given locality of the Mediterranean basin Quaternarv. Craspedochiton deslongcharnpsi was previously known only in the Pliocene....
Article
11 species of Polyplacophora were found in sandy deposits from the basal part of the Pleistocene marine series of the Stirone River (Parma, Italy). This complex represents the richest chitonfauna hitherto reported from a given locality of the Mediterranean basin Quaternary. - from English summary
Article
Full-text available
Some doubtful taxonomic structure of three mediterranean species of the Genus Chiton (C. olivaceus, C. corallimts and C. phaseolinus) are comparatively examined by means of scanning electron microscope. Radula and aesthetes show rather uniform morphology and so are useless as diagnostic features. Only the upper scales of the girdle appear different...
Article
Full-text available
The wall of the gonad of Goniodiscus rotundatus, according to ultrastructural observations, may be subdivided in functional unities similar to the acina of Limnaea stagnalis. Every U shaped functional unity has cuboidal cells (cells 1) at the proximal ends, and flattened cells (cells 2) at the bottom. The transitional zone between the two cells typ...
Article
The gonadic acina of Deroceras reticulatum (Müller) (Gastropoda Pulmonata Stylommatophora) have no germinal epithelial ring and do not show the presence of a germ cell maturity gradient. Instead, germ cells originate and differentiate in every part of the gonad and mature in loco. Therefore, the model of organization proposed for the gonadic acinus...
Article
The fine structure of midgut cells in two species of Cladocera (Crustacea: Branchiopoda) has unique features when it is compared to that in the midguts of other arthropods. Features which suggest that food is absorbed in digested form are: the presence of the peritrophic membrane, the glycocalyx, the almost complete absence of pinocytotic vesicles,...
Article
The cladoceran Daphnia middendorffiana is an arctic species able to produce winter eggs which develop parthenogenetically. The cytological study of the maturation of summer and winter eggs of an italian population of this species has shown that both types of eggs undergo only one maturation division of equational type with the expulsion of only one...
Article
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The paper presents data regarding the capture of 4 species of Lampyridae in the Nature Reserve Bosco della Fontana (Marmirolo - Mantua): Lamprohiza splendidula (Linnaeus, 1767), Lampyris noctiluca Linnaeus, 1767, Luciola italica (Linnaeus, 1767) and Luciola lusitanica (Charpentier, 1825). Both the unreliability of the taxonomic characters commonly...

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