Results 171 to 180 of about 3,166 (212)
The sandfish identity: phylogeographic reconstructions uncover a species complex within the Indo-Pacific distribution of Holothuria (Metriatyla) scabra. [PDF]
BMC Ecol EvolBrown KT +8 more
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Echinodermata (Ophiuroidea and Holothuroidea) from Northwest Africa
, 2018 Calero, B. (Belén) +2 more
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Molecular phylogeny of extant Holothuroidea (Echinodermata) [PDF]
Molecular Phylogenetics and Evolution, 2017 Sea cucumbers (Holothuroidea) are a morphologically diverse, ecologically important, and economically valued clade of echinoderms; however, the understanding of the overall systematics of the group remains controversial. Here, we present a phylogeny of extant Holothuroidea assessed with maximum parsimony, maximum likelihood, and Bayesian approaches ...
Greg W. Rouse +2 more
exaly +4 more sources
The catecholaminergic nerve plexus of Holothuroidea [PDF]
Zoomorphology, 2010 Catecholamines have been extensively reported to be present in most animal groups, including members of Echinodermata. In this study, we investigated the presence and distribution of catecholaminergic nerves in two members of the Holothuroidea, Holothuria glaberrima (Selenka, 1867) (Aspidochirotida, Holothuroidea) and Holothuria mexicana (Ludwig, 1875)
José E. García-Arrarás +2 more
exaly +3 more sources
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A Case of Holothuroidea-like Erythrocytes
Journal of Biomedical Research & Environmental Sciences, 2023Ektacytometric examination of red blood cells with morphological anomaly is presented. Confocal microscopy of the blood from the patient N. shows the abundance of RBCs in the form of representatives of the Holothuroidea. RBCs from control patients exhibited an elliptical diffraction pattern whereas patient’s N.
Katiukhin LN*, Nikitina ER
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System of the class Holothuroidea
Paleontological Journal, 2012Various interpretations of the holothurian system and phylogeny are critically reviewed and the main characters that form the basis of the existing systematics of this group are analyzed. A system of holothurians based on thorough analysis of their morphology and anatomy is proposed.
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Digestive Systems: Holothuroidea*
2020This chapter describes the structure of the holothuroid gut and the associated hemal system since the work of Bohadsch on Holothuria tubulosa. Most of the 19th century works were reported in Ludwig. To facilitate the description we will consider no more than three types of 'digestive' coelomocytes: small coelomocytes, 'phagocytes' and granulocytes ...
Jean-Pierre Feral, Claude Massin
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Notes for a Short Course: Studies in Geology, 1980
Among the living echinoderms, holothurians are generally regarded as “poor relations” of the other groups. The color and symmetry of sea-stars and the complexity of echinoids usually elicit expressions of admiration from casual observers; the reactions to holothurians usually involves a considerable degree of revulsion.
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Among the living echinoderms, holothurians are generally regarded as “poor relations” of the other groups. The color and symmetry of sea-stars and the complexity of echinoids usually elicit expressions of admiration from casual observers; the reactions to holothurians usually involves a considerable degree of revulsion.
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Holothurians (Echinodermata: Holothuroidea)
2021A total of 213 holothurians, representing 16 species, was collected during Project Hourglass, a28-month systematic survey of ten stations along two transects (6-73 m) off central western Florida.This material, supplemented with 8 1 additional Gulf of Mexico specimens supplied by the FloridaDepartment of Natural Resources, brings the total number of ...
Miller, John E., Pawson, David L.
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