Results 121 to 130 of about 802 (150)

Zur Phylogenie der chemischen Sinnesorgane einiger Cephalaspidea (Mollusca-Opisthobranchia)

Journal of Zoological Systematics and Evolutionary Research, 2009
Zusammenfassung Es werden die hauptsachlich mit chemischen Sinnesfunktionen ausgestatteten Lippenorgane, Hancock-schen Organe una Osphradien einiger bullomorpher Cephalaspidea aus neun Familien sowohl mor-phologisch als auch in ihrer Innervierung vergleichend untersucht und auf ihre sy stemacische Bedeutung gepruft.
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Phylogeny of the family Aglajidae (Pilsbry, 1895) (Heterobranchia: Cephalaspidea) inferred from mtDNA and nDNA

Molecular Phylogenetics and Evolution, 2014
The family Aglajidae includes several species of benthic, carnivorous cephalaspidean sea slugs, which generally lack a radula, have an internal shell, a posterior shield with short to moderate caudal lobes, and sensory cilia present on the head. The present study reports a phylogenetic analysis of the Aglajidae based on the mitochondrial genes 16S and ...
Ngel Valdés
exaly   +4 more sources

Shell-bearing mollusks of the order Cephalaspidea (Gastropoda: Heterobranchia) of the Kara Sea: fauna and ecology

Proceedings of the Zoological Institute of the Russian Academy of Sciences, 2021
The survey of shell-bearing heterobranchs of the order Cephalaspidea of the Kara Sea has been done based on unpublished and literature data. The studied material includes that collected during expeditions aboard R/V Professor Multanovskiy in August–September 2019 and R/V Dalnie Zelentsy in August 2012.
exaly   +2 more sources

Cephalaspidea FISCHER 1883

2018
ORDER CEPHALASPIDEA FISCHER, 1883 NEWNESIIDAE MOLES, WÄGELE, SCHRÖDL & AVILA, 2017 Type genus: Newnesia E. A. Smith, 1902.
Moles, Juan, Avila, Conxita, Malaquias, Manuel A. E.   +2 more
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A New Cryptic Species of Melanochlamys (Gastropoda: Heterobranchia: Cephalaspidea) from the Northwestern Pacific [PDF]

American Malacological Bulletin, 2016
Abstract: A new species of Melanochlamys is described based on specimens collected in Russia and Korea. This new species is genetically and anatomically different from other North Pacific species. Phylogenetic analyses of two mitochondrial (COI, 16S) and a nuclear (H3) gene confirmed the results of previous analyses and recovered a clade including ...
Ángel Valdés, Eric Breslau, Anton Chichvarkhin   +2 more
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Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

Zootaxa, 2019
Meloscaphander grandis is a little-known species missing from databases and papers on taxonomic revision and phylogenetic analysis of Scaphandridae. This species is redescribed herein, based on the type specimen and specimens from the abyssal plain adjacent to the Kuril-Kamchatka Trench.
Irina A Ekimova, Alexei V Chernyshev
exaly   +5 more sources

Histological, histochemical, and ultrastructural investigation of the male copulatory apparatus of Haminoea navicula (Gastropoda, Cephalaspidea)

Journal of Morphology, 2018
AbstractDue to its biological and systematic importance, the morphology and function of the male copulatory apparatus of Haminoea navicula, a Cephalaspidea gastropod mollusk, was investigated by light and electron microscopy. These systems are poorly understood in haminoids, but are often used in the taxonomy of the genus. In H.
Alexandre Lobo‐da‐Cunha, Ângela Alves, Elsa Oliveira, Manuel António E. Malaquias   +3 more
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A new species of Gastropteridae (Gastropoda, Opisthobranchia, Cephalaspidea) from tropical Northeast Australia

Zootaxa, 2003
A new species of the family Gastropteridae from tropical Australia is described. The main focus of the description is the external morphology, the radula morphology and the histology of all organ systems. Siphopteron leah sp. nov. is a small species with a bright yellow body colour and red lines along the siphonal crest, the parapodia, across the ...
Alexander Klussmann, Annette Klussmann-Kolb   +1 more
exaly   +4 more sources

Diet and feeding biology of Haminoea orbygniana (Mollusca: Gastropoda: Cephalaspidea)

Journal of the Marine Biological Association of the United Kingdom, 2004
The diet and functional biology of the digestive system of the cephalaspidean gastropod Haminoea orbygniana was investigated by gut content analysis of animals collected in the Ria Formosa, a coastal lagoon in southern Portugal. The results show that this species is herbivorous, stenophagic and probably non-selective, feeding mainly on diatoms (67·61%)
Sı́lvia Condinho, Manuel António E. Malaquias, Juan Lucas Cervera, Martin Sprung   +3 more
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Reassessment of the trophic position of Bullidae (Gastropoda: Cephalaspidea) and the importance of diet in the evolution of cephalaspidean gastropods

Journal of Zoology, 2008
AbstractA review of the available data on the diet of species of Bullidae is presented. Their trophic level is reassessed through gut content analysis of worldwide species from various habitats. Gut contents were identified by light and scanning electron microscopy. The previous claims of omnivory and carnivory were not supported.
David G. Reid, Manuel António E. Malaquias, E. Berecibar   +2 more
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