Results 31 to 40 of about 779 (167)

Pseudocnidae of ribbon worms (Nemertea): ultrastructure, maturation, and functional morphology [PDF]

PeerJ, 2021
The fine structure of mature pseudocnidae of 32 species of nemerteans, representatives of 20 genera, six families, and two classes was investigated with scanning and transmission electron microscopy.
Timur Yu Magarlamov, James M. Turbeville, Alexei V. Chernyshev   +2 more
doaj   +2 more sources

The Toxins of Nemertean Worms

Toxins, 2019
Most ribbon worms (phylum: Nemertea) are found in marine environments, where they act as predators and scavengers. They are characterized by an eversible proboscis that is used to hunt for prey and thick mucus covering their skin.
Ulf Göransson, Erik Jacobsson, Malin Strand, Håkan S. Andersson   +3 more
doaj   +1 more source

A Minireview on Biodiscovery in Antarctic Marine Benthic Invertebrates

Frontiers in Marine Science, 2021
Antarctic marine benthic invertebrates are an underexplored source of natural products for biodiscovery. Bioactive marine natural products from Antarctica are reviewed here for their potential use as drugs, considering the main examples in Porifera (15 ...
Conxita Avila, Carlos Angulo-Preckler, Carlos Angulo-Preckler   +2 more
doaj   +1 more source

Molecular Phylogeny of the Genus Nipponnemertes (Nemertea: Monostilifera: Cratenemertidae) and Descriptions of 10 New Species, With Notes on Small Body Size in a Newly Discovered Clade

Frontiers in Marine Science, 2022
Nemerteans, or ribbon worms, have been reported from intertidal to hadal depths, often showing bathymetrically wide distribution in genus levels. Although current nemertean systematics practices require to provide DNA sequences and infer phylogenetic ...
Natsumi Hookabe, Hiroshi Kajihara, Alexei V. Chernyshev, Naoto Jimi, Naoto Jimi, Naohiro Hasegawa, Hisanori Kohtsuka, Masanori Okanishi, Masanori Okanishi, Kenichiro Tani, Yoshihiro Fujiwara, Shinji Tsuchida, Rei Ueshima   +12 more
doaj   +1 more source

Resolving a 200-year-old taxonomic conundrum: neotype designation for Cephalothrix linearis (Nemertea: Palaeonemertea) based on a topotype from Bergen, Norway

Fauna Norvegica, 2019
The taxonomic identity of the palaeonemertean Cephalothrix linearis (Rathke, 1799) has been obscure for nearly two centuries, because its original description applies to almost any congeners, including Cephalothrix filiformis (Johnston 1828) and ...
Hiroshi Kajihara
doaj   +1 more source

Phylogeny and mitochondrial gene order variation in Lophotrochozoa in the light of new mitogenomic data from Nemertea

BMC Genomics, 2009
Background The new animal phylogeny established several taxa which were not identified by morphological analyses, most prominently the Ecdysozoa (arthropods, roundworms, priapulids and others) and Lophotrochozoa (molluscs, annelids, brachiopods and ...
von Döhren Jörn, Struck Torsten H, Braband Anke, Podsiadlowski Lars, Bartolomaeus Thomas   +4 more
doaj   +1 more source

Investigation of Peptide Toxin Diversity in Ribbon Worms (Nemertea) Using a Transcriptomic Approach

Toxins, 2022
Nemertea is a phylum of nonsegmented worms (supraphylum: Spiralia), also known as ribbon worms. The members of this phylum contain various toxins, including peptide toxins.
Anna E. Vlasenko, Vasiliy G. Kuznetsov, Timur Yu. Magarlamov   +2 more
doaj   +1 more source

Structure and dynamics of the biota associated with Macrocystis pyrifera (Phaeophyta) from the Beagle Channel, Tierra del Fuego

Scientia Marina, 1999
The community associated to the kelp Macrocystis pyrifera from the Beagle Channel (54°00´S; 68°20´W) was studied. Sixty-eight taxa including Algae (5), Porifera (indet.), Bryozoa (7), Nemertea (2), Annelida (10), Mollusca (22), Crustacea (15) and ...
Mariana L. Adami, Sandra Gordillo
doaj   +1 more source

Statistical parsimony networks and species assemblages in Cephalotrichid nemerteans (nemertea). [PDF]

PLoS ONE, 2010
BACKGROUND: It has been suggested that statistical parsimony network analysis could be used to get an indication of species represented in a set of nucleotide data, and the approach has been used to discuss species boundaries in some taxa.
Haixia Chen, Malin Strand, Jon L Norenburg, Shichun Sun, Hiroshi Kajihara, Alexey V Chernyshev, Svetlana A Maslakova, Per Sundberg   +7 more
doaj   +1 more source

Invertebrate Community Similarity in the Nglambor Intertidal Zone, Indonesia

BIO Web of Conferences, 2021
This study aims to investigate the community composition similarity of invertebrates in the Nglambor intertidal zone. The similarity of invertebrate communities in the Nglambor intertidal zone in Indonesia was studied in August and September 2020..
Putra Aliyani Yoga, Fera Rahmawati Yunita, Annisa Muflihaini Millade   +2 more
doaj   +1 more source