Results 21 to 30 of about 13,813 (212)

Expression of Opsins of the Box Jellyfish Tripedalia cystophora Reveals the First Photopigment in Cnidarian Ocelli and Supports the Presence of Photoisomerases

Frontiers in Neuroanatomy, 2022
Cubomedusae, or box jellyfish, have a complex visual system comprising 24 eyes of four types. Like other cnidarians, their photoreceptor cells are ciliary in morphology, and a range of different techniques together show that at least two of the eye types—
Anders Garm, Jens-Erik Svaerke, Daniela Pontieri, Todd H. Oakley   +3 more
doaj   +1 more source

First In Situ Observation of Sperm Release in Corynactis carnea (Anthozoa: Corallimorpharia) from Patagonia, Argentina

Diversity, 2023
Jewel sea anemones constitute a relatively small group of solitary cnidarians, a sister group of scleractinian corals. In the southwest Atlantic Ocean off Argentina, two species of jewel sea anemones have been found: Corynactis carnea and Corallimorphus ...
Gonzalo Bravo, Gregorio Bigatti, Pablo Penchaszadeh, Daniel Lauretta   +3 more
doaj   +1 more source

Mechanisms and Drivers for the Establishment of Life Cycle Complexity in Myxozoan Parasites

Biology, 2020
It is assumed that complex life cycles in cnidarian parasites belonging to the Myxozoa result from incorporation of vertebrates into simple life cycles exploiting aquatic invertebrates.
Martina Lisnerová, Ivan Fiala, Delfina Cantatore, Manuel Irigoitia, Juan Timi, Hana Pecková, Pavla Bartošová-Sojková, Christian M. Sandoval, Carl Luer, Jack Morris, Astrid S. Holzer   +10 more
doaj   +1 more source

Reflectance Confocal Microscopy of Skin after the Sting of the Jellyfish Pelagia noctiluca

Case Reports in Dermatology, 2023
Jellyfish are aquatic animals of the phylum Cnidaria found in seas all over the world. They are characterized by the presence of cnidocytes, cells that contain a secretory organelle, the cnidocyst, mainly used for predation and defense purposes. An adult
Giovanni Paolino, Matteo Riccardo Di Nicola, Riccardo Pampena, Vittoria Giulia Bianchi, Santo Raffaele Mercuri   +4 more
doaj   +1 more source

A Novel Phospholipase A2 Isolated from Palythoa caribaeorum Possesses Neurotoxic Activity

Toxins, 2019
Zoanthids of the genus Palythoa are distributed worldwide in shallow waters around coral reefs. Like all cnidarians, they possess nematocysts that contain a large diversity of toxins that paralyze their prey.
Miguel Cuevas-Cruz, Fernando Lazcano-Pérez, Ulises Hernández-Guzmán, Karen Helena Díaz de la Vega-Castañeda, Sergio A. Román-González, Norma A. Valdez-Cruz, Benjamín Velasco-Bejarano, Ana Laura Colín-González, Abel Santamaría, Saúl Gómez-Manzo, Jaime Marcial-Quino, Roberto Arreguín-Espinosa   +11 more
doaj   +1 more source

Three new species of Spongiopsyllus Johnsson, 2000 (Copepoda: Siphonostomatoida: Entomolepididae) associated with Aplysina cauliformis (Carter, 1882) (Porifera: Demospongiae) from Todos-os-Santos Bay, Northeastern Brazil

European Journal of Taxonomy
Entomolepididae is a small siphonostomatoid family with a distinct shield-like body morphology, comprising 9 genera and 20 species. These genera are divided into two subfamilies, mostly based on their body segmentation, the genera with fused pedigerous ...
Amilcar Farias, Alisson Santana, Elizabeth G. Neves, Rodrigo Jonsson   +3 more
doaj   +1 more source

Description of a new genus of Cryptochiridae (Decapoda: Brachyura) associated with Siderastrea (Anthozoa: Scleractinia), with notes on feeding habits

Scientia Marina, 2012
Members of the Cryptochiridae are small gall-crabs that live as obligate symbionts of scleractinian corals. Only two species have so far been recorded in the western Atlantic Ocean.
Marcelle F.S. Badaro, Elizabeth G. Neves, Peter Castro, Rodrigo Johnsson   +3 more
doaj   +1 more source

A New Genus of Ectinosomatidae (Copepoda, Harpacticoida) Symbiont in the Digestive Tract of Eudistoma vannamei Millar, 1977 (Ascidia, Polycitoridae)

Arthropoda
A new genus of Ectinosomatidae is recorded in association with an Ascidia from a permanent submerged coral community in Barra Beach, Salvador City, Bahia State (Brazil).
Paulo H. Corgosinho, Terue C. Kihara, Amilcar Farias, Nikolaos Schizas, Elizabeth Neves, Rodrigo Johnsson   +5 more
doaj   +1 more source

Trends in hydroidomedusan research from 1911 to 1997

Scientia Marina, 2000
The papers on hydroidomedusae published from 1911 to 1997 total 10,934. They have been assigned to the following categories: faunistics and systematics; sub-organismal biology; ecology; evolution; life cycles; paleontology.
C. Gravili, R. Pagliara, W. Vervoort, J. Bouillon, F. Boero   +4 more
doaj   +1 more source

The complete mitogenome of ghost jellyfish Cyanea nozakii (Cnidaria, Semaeostomeae, Cyaneidae)

Mitochondrial DNA. Part B. Resources, 2018
The cnidarian jellyfishes are impressive organisms to show animal mitochondrial genomic diversities. Their mitogenome structure is linear and tRNA content has one or two in numbers, which is highly different than other metazoans.
Mustafa Zafer Karagozlu, Jang-Seu Ki, Yoseph Seo, Chang-Bae Kim   +3 more
doaj   +1 more source