Description of Sidneioides peregrinus sp. nov. (Tunicata: Ascidiacea: Polyclinidae): a possible exotic species in the Atlantic Ocean
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Two new species of Distaplia (Tunicata: Ascidiacea) from the SW Atlantic, Argentina.
The ascidian fauna from the Southwestern Atlantic (Argentine Sea) have scarcely been studied and have rarely been sampled. The existing scanty ascidian records are from specimens collected by dredging many decades ago. During samplings in the San Matias Gulf (Río Negro, Patagonia), two new Distaplia species were found. Distaplia naufragii sp. nov. was collected in the subtidal zone attached to ...
متن کاملA revision of the Pyura stolonifera species complex (Tunicata, Ascidiacea), with a description of a new species from Australia
Pyura stolonifera is a large solitary ascidian found in Africa, Australasia and South America. The taxonomic status of different populations of this species is disputed, especially since there is evidence for several distinct morphological and genetic units that point towards the existence of multiple cryptic species. While some researchers still recognize P. stolonifera as a single species, ot...
متن کاملDescription of Astragalus barnasariformis sp. nov. from Iran
A new species of Astragalus is described: Astragalus barnasariformis sp. nov., Maassoumi, F. Ghahrem. & Bagheri. It is endemic to Zanjan province in northwestern Iran. Morphological evidence supports taxonomic placement of the new species in Astragalus sect. Trachycercis. The species appears to be most closely related to A. barnasari Grossh. and A. chalilovii.
متن کاملPseudoalteromonas tunicata sp. nov., a bacterium that produces antifouling agents.
A dark-green-pigmented marine bacterium, previously designated D2, which produces components that are inhibitory to common marine fouling organisms has been characterized and assessed for taxonomic assignment. Based on direct double-stranded sequencing of the 16S rRNA gene, D2T was found to show the highest similarity (93%) to members of the genus Pseudoalteromonas. The G + C content of D2T is ...
متن کاملNew species of Didemnidae (Tunicata: Ascidiacea) from the tropical coast of Brazil.
The family Didemnidae includes 20% of all known ascidians with six genera in the Atlantic. Here, we describe five new species in the Didemnidae from central coastal Brazil. Four species are in the genus Didemnum and were found in Bahia (D. aurantium, D. flammacolor, D. lambertae, D. longigaster), while one Diplosoma (D. citrinum) was found both in Bahia and Espírito Santo.
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ژورنال
عنوان ژورنال: Zoologia (Curitiba)
سال: 2011
ISSN: 1984-4689
DOI: 10.1590/s1984-46702011000600012