Results 41 to 50 of about 1,027 (176)

EMBRYOLOGY AND LARVAL DEVELOPMENT OF HAMINOEA-VESICULA GOULD (OPISTHOBRANCHIA, CEPHALASPIDEA)

open access: green, 1989
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Glenys Gibson, Fu‐Shiang Chia
openalex   +2 more sources

Una nueva especie de Runcina (Gastropoda, Opisthobranchia, Cephalaspidea) del litoral de Angola

open access: hybridBulletin du Muséum national d'histoire naturelle, 1990
Serge Gofas   +2 more
openalex   +3 more sources

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

open access: yesDiversity
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   +4 more
doaj   +1 more source

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

open access: yes, 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   +2 more
core   +1 more source

Revealing hidden diversity and cryptic speciation in Antarctic marine gastropods (Heterobranchia: Cephalaspidea) [PDF]

open access: hybridAntarctic Science
AbstractRecent studies have revealed significant hidden diversity and a high incidence of cryptic speciation in Antarctic marine gastropods. Originally, philinoid cephalaspideans in the Southern Ocean were classified within the genus Philine. However, molecular and morphological studies have shown that three genera encompass all known diversity instead.
Marc Peralta-Serrano   +3 more
openalex   +3 more sources

Evolution der Cephalic Sensory Organs innerhalb der Opisthobranchia [PDF]

open access: yes, 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  

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

open access: yesJournal of the Marine Biological Association of the United Kingdom, 1985
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 and also forms spermatophores (Ghiselin, 1966).
openaire   +1 more source

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

open access: yes, 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  

The taxonomic status of the headshield slug genus Nakamigawaia Kuroda and Habe, 1961 (Gastropoda: Cephalaspidea: Aglajidae), with the description of a new species from the Western Pacific [PDF]

open access: yes, 2021
Nakamigawaia is a poorly understood genus of Aglajidae sea slugs with only two species formally ascribed. In this paper we explore new morpho-anatomical characters using stereo and scanning electron microscopy and employ different molecular approaches (a
Hellem, Emma   +1 more
core   +1 more source

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