Results 171 to 180 of about 3,079 (201)

Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil.

Zootaxa, 2018
The class Echinoidea contains among the best-known echinoderms. The group has left the most complete fossil record of this phylum, and contains about 1000 living species, of which 51 are recorded along the Brazilian coast.
A. I. Gondim, R. B. DE MOURA, M. Christoffersen, T. Dias   +3 more
semanticscholar   +1 more source

Some Cretaceous Echinoidea from Jamaica

Geological Magazine, 1923
(a) Palæontological.—A new genus of the Holectypoida, Metholectypus, is described. Its only known species, M. trechmanni sp.n., shows remarkable superficial similarity with Lanieria lanieri. It is argued that these two genera may be divergent end-forms of the Coenholectypus stock.A large species of Heterosalenia (H.
openaire   +1 more source

Binding properties of Paracentrotus lividus (Echinoidea) hemolysin

Comparative Biochemistry and Physiology Part A: Physiology, 1991
1. Paracentrotus lividus hemolysin binds erythrocytes, zymosan particles, lipopolysaccharide and laminarin surfaces but not auto and allogeneic cell membranes. 2. The binding could, at least for erythrocytes, involve phospholipids and cholesterol. 3. The protease activity of the coelomic fluid is not related to hemolysis. 4.
openaire   +2 more sources

Über die chromosomenzahl einiger echinoidea

Sarsia, 1961
Abstract Der Verf. stellte fest, dass der sehr kleine (bis 13 mm Lange) mediterrane Seeigel Genocidaris maculata diploid nur 16 Chromosomen hat wahrend alle anderen untersuchten Echinoidea dipioid 32–52, am haufigsten 36 Chromosomen besitzen. Es wurde daher der ebenfalls sehr kleine (bis 15 mm Lange) irregulare Seeigel Echinocyamus pusillus untersucht.
openaire   +1 more source

Depth-related plasticity in the diet composition of Pseudechinus magellanicus (Echinoidea, Temnopleuridae) in nearshore environments off central Patagonia, Argentina

Aquatic Ecology, 2021
D. G. Gil, A. Boraso, E. C. Lopretto, H. Zaixso   +3 more
semanticscholar   +1 more source

Aquatic Antagonists: Dermatologic Injuries From Sea Urchins (Echinoidea)

Cutis
Sea urchin injuries are common following accidental contact with sharp sea urchin spines. Immediate manifestations of injury include local erythema, pain, and myalgia. Failure to remove the spines from the skin may result in delayed systemic reactions, secondary infection, granulomas, and-if joint spaces are involved-inflammatory or infectious ...
Caroline J, Brailsford, Dirk M, Elston
openaire   +2 more sources

Antioxidant and anti-inflammatory cembrane-type diterpenoid from Echinoidea sea urchin Stomopneustes variolaris attenuates pro-inflammatory 5-lipoxygenase

Medicinal Chemistry Research, 2020
Prima Francis, K. Chakraborty
semanticscholar   +1 more source

Echinoidea neogenica

Lethaia: an international journal of palaeontology and stratigraphy, 2007
openaire   +3 more sources

Einiges über Mitglieder der Familie Spatangidae (Echinoidea)

Paläontologische Zeitschrift, 1963
Die GattungAtelospatangusKoch wird mit Material aus dem Obereozan von Solymar (Comitat Pest, Ungarn) revidiert.
openaire   +1 more source

Phylum Echinodermata Classe Echinoidea

2020
Parte I. Cap.
openaire   +1 more source