Holothuroidea
نویسندگان
چکیده
منابع مشابه
Tasmanian Sea ~ Cucumbers ( Holothuroidea )
Over five hundred and forty of seacucumbers eollected on the southern coasts of Tasmania have in the course of the present study. Seven families, 12 and 14 species are represented in the One is regarded are as new, adhaerens, TaVUtll. and Paraca.udina. Three other species have not been recorded previously from Tasmania but are known from the coast of Victoria. They are Cllcurnella Jnutans incon...
متن کاملPhylogeny of Holothuroidea (Echinodermata) inferred from morphology
Holothuroids, or sea cucumbers, are an abundant and diverse group of echinoderms with over 1400 species occurring from the intertidal to the deepest oceanic trenches. In this study, we report the first phylogeny of this class, based on a cladistic analysis of 47 morphological characters. We introduce several previously unconsidered synapomorphic characters, examine the relationships between rep...
متن کاملBiologically Active Triterpene Glycosides from Sea Cucumbers (holothuroidea, Echinodermata)
Sea cucumbers are characterized by their content in holothurins, triterpenoid glycosides that are responsible for the toxicity of these echinoderms. Nearly 100 holothurins isolated in the last twenty years are grouped into three main aglycone structural types: 3p-hydrox>iiolost-9(ll)-ene, 3p-hydrox5*iolost-7-ene and nonholostane based aglycones. This communication offers a general view of the s...
متن کاملAspidochirotida (Echinodermata: Holothuroidea) from the northeast coast of Brazil.
This is a taxonomic work on the aspidochirotid sea cucumbers from shallow waters in Northeast Brazil. We studied 165 specimens, classified into 2 families, 3 genera, 7 subgenera and 9 species. Descriptions, illustrations and literature data are included for each species, in addition to ecological notes and information on their distribution in the northeast coast of Brazil. A taxonomic key is pr...
متن کاملPhylogeny of Sea Cucumber (Echinodermata: Holothuroidea) as Inferred from 16S Mitochondrial rrna Gene Sequences (Filogeni Timun Laut (Echinodermata: Holothuroidea) Berdasarkan Jujukan Gen 16S Mitokondria rrna)
This study aimed to determine phylogenetic relationship between and among selected species of sea cucumbers (Echinodermata: Holothuroidea) using 16S mitochondrial ribosomal RNA (rRNA) gene. Phylogenetic analyses of 37 partial sequences of 16S mitochondrial rRNA gene using three main methods namely neighbour joining (NJ), maximum parsimony (MP) and maximum likelihood (ML) showed the presence of ...
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ژورنال
عنوان ژورنال: Bijdragen tot de Dierkunde
سال: 1927
ISSN: 0067-8546,2666-0644
DOI: 10.1163/26660644-02501013