57 research outputs found
Taxonomic review of the genus Adelomelon (Gastropoda; Volutidae), based on type material
Comparative localization of serotonin-like immunoreactive cells in Thaliacea informs tunicate phylogeny
Global Diversity of Ascidiacea
The class Ascidiacea presents fundamental opportunities for research in the fields of development, evolution, ecology, natural products and more. This review provides a comprehensive overview of the current knowledge regarding the global biodiversity of the class Ascidiacea, focusing in their taxonomy, main regions of biodiversity, and distribution patterns. Based on analysis of the literature and the species registered in the online World Register of Marine Species, we assembled a list of 2815 described species. The highest number of species and families is found in the order Aplousobranchia. Didemnidae and Styelidae families have the highest number of species with more than 500 within each group. Sixty percent of described species are colonial. Species richness is highest in tropical regions, where colonial species predominate. In higher latitudes solitary species gradually contribute more to the total species richness. We emphasize the strong association between species richness and sampling efforts, and discuss the risks of invasive species. Our inventory is certainly incomplete as the ascidian fauna in many areas around the world is relatively poorly known, and many new species continue to be discovered and described each year
Una vida sin examen no merece ser vivida por el hombre: variaciones "socráticas" en Epicteto
Checklist da classe appendicularia (Chordata: Tunicata) do Estado de São Paulo, Brasil
Le glycogene intracellulaire du thymus de souris c57bl/6 pendant la periode de croissance post-natale.
Le glycogene du thymus lors de sa croissance et lors de sa regenera- tion apres irradiation chez la souris c57bl.
LI.— On a remarkable mountain Viscacha from southern Patagonia, with diagnoses of other members of the group
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