Results 21 to 30 of about 976 (145)

A new species of Acteon (Opisthobranchia: Acteonidae) from Northeast Brazil

Zoologia (Curitiba), 2011
A new species of Acteon Montfort 1810, Acteon mirim sp. nov., from Canopus Bank, state of Ceará, Brazil is described based on shell morphology. The new species is compared with other species of the genus reported from Brazil.
Carlo Magenta Cunha
doaj   +1 more source

The bubble snails (Gastropoda, Heterobranchia) of Mozambique: an overlooked biodiversity hotspot [PDF]

, 2016
This first account, dedicated to the shallow water marine heterobranch gastropods of Mozambique is presented with a focus on the clades Acteonoidea and Cephalaspidea.
A Adams, A Valdés, C Carlson, C Eliot, C Eliot, C Eliot, C Gonzales, CR Sreeraj, D Apte, D King, D Obura, E Bergh, E Martens von, E Ornelas-Gatdula, E Rolán, EA Kay, EA Kay, EDBR Marcus, F Nordsieck, FJG García, G Paulay, GD Brodie, GH Brown, GM Branch, H Pilsbry, H Wagele, J Heller, JG Marshall, JP Hoover, K Baba, KH Barnard, L Carmona, L Carmona, LM Turner, M Caballer, M Domínguez, M Schrödl, MA Frey, MAE Malaquias, MAE Malaquias, MAE Malaquias, MAM Pereira, Manuel António E. Malaquias, MH Eilertsen, MI Voskuil, Ministry for the Coordination of Environmental Affairs, N Yonow, N Yonow, N Yonow, N Yonow, N Yonow, N Yonow, R Bergh, R Burn, R Nakano, RM Price, RN Kilburn, S Johnson, S Narayana, SO Bandeira, ST Williams, TM Gosliner, TM Gosliner, TM Gosliner, TM Gosliner, TR Oskars, V Padula, V Vonnemann, W Macnae, W Macnae, WB Rudman, WB Rudman, WB Rudman, WB Rudman, WB Rudman, WB Rudman, Yara Tibiriçá, YE Camacho-García   +77 more
core   +2 more sources

Diversity and distribution of the Gastropoda Opisthobranchia from the Atlantic Ocean: A global biogeographic approach

Scientia Marina, 2009
A zoogeographic study of the Opisthobranchia (Mollusca, Gastropoda) from the Atlantic Ocean was carried out. Data on Opisthobranch occurrence were collated from literature records and databases.
Francisco J. García, Hans Bertsch
doaj   +1 more source

Does a shell matter for defence? Chemical deterrence in two cephalaspidean gastropodes with calcified shells [PDF]

, 2009
Opisthobranch molluscs show an evolutionary trend to reduce, internalize and lose the shell. Many of them base their defensive strategies on natural deterrent products and current evolutionary theory suggests that the acquisition of chemical defences ...
Calado, Gonçalo, Gaspar, Helena, Neves, R.   +2 more
core   +1 more source

Sea Slugs (Mollusca, Gastropoda, Heterobranchia) from the Medes Islands (Costa Brava, NE Spain): Biodiversity and Ecological Study over a Decade

Diversity
The Mediterranean Sea faces escalating environmental pressures from the unsustainable exploitation of resources and insufficient management. Marine protected areas (MPAs), such as the Parc Natural del Montgrí, les Illes Medes i el Baix Ter (PNMMBT) on ...
Miquel Pontes, Enric Madrenas, Arnau Garcia-Tort, Olga Espada, Manuel Ballesteros   +4 more
doaj   +1 more source

Molecular phylogeny of the marine snail genus Haminoea (Gastropoda, Cephalaspidea): A framework to study marine diversity and speciation

Zoologica Scripta, Volume 53, Issue 1, Page 52-77, January 2024.
Abstract Haminoea are herbivorous, coastal snails occurring in temperate and tropical waters of the Atlantic and Eastern Pacific oceans, with one species present in temperate South Africa (Indian Ocean). The genus is taxonomically difficult as several available nominal species were introduced based on shell descriptions alone, or described based on ...
Martina Turani, Ángel Valdés, Manuel António E. Malaquias   +2 more
wiley   +1 more source

Evolution der Cephalic Sensory Organs innerhalb der Opisthobranchia [PDF]

, 2008
Das Ziel der vorliegenden Doktorarbeit war es, die Evolution der Kopfsinnesorgane der Opisthobranchia zu rekonstruieren. Bei den Opisthobranchia handelt es sich um eine äußerst diverse Gruppe überwiegend mariner Gastropoden innerhalb der Euthyneura.
Staubach, Sid
core  

Lista actualizada de los opistobranquios (Mollusca: Gastropoda: Opisthobranchia) de las costas catalanas [PDF]

, 2015
Se presenta una lista taxonómica de las especies de opistobranquios (Mollusca: Gastropoda: Opisthobranchia) registradas hasta el presente en aguas litorales o de profundidad de las costas catalanas (NE Península Ibérica).
Ballesteros, Manuel (Ballesteros Vázquez)
core  

A Structural Analysis of the Spermatophore of Runcina Ferruginea Kress (Opisthobranchia: Cephalaspidea) [PDF]

, 2017
A spermatophore is defined as a capsule of albuminous matter containing a number of sperm. Among opisthobranchs the families Retusidae, Philinoglossidae, Bullidae, Atydae and Runcinidae are all said to possess a copulatory apparatus which stores sperm ...
Kress, Annetrudi
core  

Molecular phylogeny of European Runcinida (Gastropoda, Heterobranchia): The discover of an unexpected pool of complex species, with special reference to the case of Runcina coronata [PDF]

, 2021
Runcinida is a small heterobranch order of sea slugs with 61 known species distributed worldwide across temperate and tropical latitudes with two established families (Ilbiidae and Runcinidae).
Araujo, Ana Karla, Ballesteros, Manuel, Cervera, Juan Lucas, Malaquias, Manuel Antonio E., Pola Pérez, Marta, Vitale, Fabio   +5 more
core   +2 more sources