Results 11 to 20 of about 278 (100)

Sthenelais onca sp. nov. (Phyllodocida, Sigalionidae) from a sandy beach on the North Pacific coast of Costa Rica [PDF]

ZooKeys
Errant polychaetes of the family Sigalionidae are active, scale-covered predators inhabiting sandy marine bottoms. Knowledge of this family in tropical America is scarce, with only a few species reported from Costa Rica. In this study, seven specimens of
Jeffrey A. Sibaja-Cordero, Waiomi Miranda-García   +1 more
doaj   +4 more sources

Morphological, histological and gene-expression analyses on stolonization in the Japanese Green Syllid, Megasyllis nipponica (Annelida, Syllidae) [PDF]

Scientific Reports, 2023
Benthic annelids belonging to the family Syllidae (Annelida, Errantia, Phyllodocida) exhibit a unique reproduction mode called “schizogamy” or “stolonization”, in which the posterior body part filled with gametes detaches from the original body, as a ...
Mayuko Nakamura, Kohei Oguchi, Daisuke S. Sato, Sumika Kato, Masanori Okanishi, Yoshinobu Hayashi, M. Teresa Aguado, Toru Miura   +7 more
doaj   +2 more sources

Complete mitochondrial genome of the marine polychaete Hediste japonica (Phyllodocida, Nereididae) [PDF]

Mitochondrial DNA. Part B. Resources, 2020
To date, only five species are registered in the genus Hediste, and complete mitochondrial genome is reported in one species, Hediste diadroma. In this study, a complete 15,783 bp genome for the marine polychaete H.
Hyoung Sook Park, Sang-Eun Nam, Jae-Sung Rhee   +2 more
doaj   +2 more sources

Guide and keys for the identification of Syllidae (Annelida, Phyllodocida) from the British Isles (reported and expected species)

ZooKeys, 2015
In November 2012, a workshop was carried out on the taxonomy and systematics of the family Syllidae (Annelida: Phyllodocida) at the Dove Marine Laboratory, Cullercoats, Tynemouth, UK for the National Marine Biological Analytical Quality Control (NMBAQC ...
Guillermo San Martín, Tim M. Worsfold
exaly   +3 more sources

Gaps and Data Ambiguities in DNA Reference Libraries: A Limiting Factor for Molecular-Based Biodiversity Assessments Using Annelids as a Case Study. [PDF]

Ecol Evol
Regional DNA reference libraries are crucial for molecular biodiversity assessments, yet they remain incomplete, limiting their effectiveness. Using annelids from the Arabian Peninsula as a case study, we identified considerable gaps in species coverage and minimal representation in public databases.
Teixeira MAL, Aylagas E, Pearman JK, Carvalho S.   +3 more
europepmc   +2 more sources

Loss of nervous system complexity – Morphological analyses shed light on the neuronal evolution in Myzostomida (Annelida)

Acta Zoologica, Volume 104, Issue 4, Page 633-646, October 2023., 2023
Abstract Myzostomida are putatively nested within the errant Annelida and exhibit a unique morphology. The latter fact might possibly be related to their long host‐dependent radiation. Hence, an incomplete segmentation, lack of prominent sensory structures in adults and a dorso‐ventrally flattened body are just some examples.
Patrick Beckers, Tobias Gebhardt, Conrad Helm   +2 more
wiley   +1 more source

Diversity, phylogeny, and bathymetric zonation of Sirsoe (Annelida: Hesionidae) from colonization experiments in the South China Sea, with the description of three new species

Ecology and Evolution, Volume 13, Issue 7, July 2023., 2023
A combination of specimen examination, metabarcoding, and phylogeny was used to explore the diversity of Sirsoe from colonization experiments in the South China Sea. A total of 10 species/OTUs were recovered, and their phylogenetic positions were resolved, with three new species described as well. A zonation pattern was observed.
Yadong Zhou, Yuru Han, Wei Xie, Mingting Li, Zhi Wang, Dongsheng Zhang   +5 more
wiley   +1 more source

Healed injuries, ontogeny and scleritome construction in a Late Ordovician machaeridian (Annelida, Aphroditiformia)

Papers in Palaeontology, Volume 9, Issue 4, July/August 2023., 2023
Abstract Machaeridians are armoured annelids that were morphologically diverse during the Palaeozoic. The scleritome developed from fleshy protrusions at the base of each parapodium, with alternating segments giving rise to differentiated inner and outer shell plates.
Luke A. Parry, Gregory D. Edgecombe, Jana Bruthansová, Jakob Vinther   +3 more
wiley   +1 more source

Reevaluation of the Systematic Status of Branchinotogluma (Annelida, Polynoidae), with the Establishment of Two New Species

Journal of Zoological Systematics and Evolutionary Research, Volume 2023, Issue 1, 2023., 2023
Branchinotogluma is one of the most diverse genera among the polynoids inhabiting deep‐sea chemosynthetic environments. A total of 14 species have been described from the hydrothermal vents and cold seeps worldwide. Our phylogenetic analyses based on four genes (COI, 16S, 18S, and 28S rRNA) recovered the current Branchinotogluma as paraphyletic, with ...
Xuwen Wu, Wenquan Zhen, Qi Kou, Kuidong Xu, Miroslawa Dabert   +4 more
wiley   +1 more source

Fine‐scale diversity of prey detected in humpback whale feces

Ecology and Evolution, Volume 12, Issue 12, December 2022., 2022
We investigated the prey consumed by humpback whales in three heterogenous regions in southern British Columbia, Canada, using opportunistic faecal sampling, microscopy, and DNA metabarcoding of 14 faecal samples. Fish including Pacific herring (Clupea pallasii), hake (Merluccius productus), and eulachon (Thaleichthys pacificus) were the most common ...
Rhonda D. Reidy, Matthew A. Lemay, Katie G. Innes, Rute B. G. Clemente‐Carvalho, Carly Janusson, John F. Dower, Laura L. E. Cowen, Francis Juanes   +7 more
wiley   +1 more source