Results 31 to 40 of about 1,256 (206)

Gametogenic cycle of Ophioderma januarii, a common Ophiodermatidae (Echinodermata: Ophiuroidea) in southeastern Brazil

open access: yesZoologia (Curitiba), 2009
This study describes the gametogenic cycle of Ophioderma januarii Lütken, 1856, a common species of ophiuroid in Southeastern Brazil. The specimens were collected during the project "Biodiversidade Bêntica Marinha no Estado de São Paulo-BIOTA/FAPESP ...
Michela Borges   +2 more
doaj   +1 more source

Ophiuroids of Soviet Seas [PDF]

open access: yesNature, 1968
Ophiuroids of the USSR Seas By A. M. D'yakonov Edited by A. A. Strelkov. Translated from the Russian by R. Finesilver. (Keys to the Fauna of the USSR, No. 55.) Pp. ix + 123. (Israel Program for Scientific Translations: Jerusalem, 1967. Distributed by H. A. Humphrey, London.) 55s.
openaire   +1 more source

Aggregations of a Sessile Ctenophore, Coeloplana sp., on Indo-West Pacific Gorgonians

open access: yesDiversity, 2023
We document the benthic ctenophores Coeloplana sp. and Vallicula multiformis from Oman, extending their geographic range. A new Coeloplana species was found forming aggregations on gorgonians of two octocoral host genera, Melithaea and Euplexaura ...
Kaveh Samimi-Namin   +5 more
doaj   +1 more source

Vertical distribution of megafauna on the Bering Sea slope based on ROV survey [PDF]

open access: yesPeerJ, 2020
Video surveys were carried out during the 75th cruise of the RV Akademik M.A. Lavrentyev (June 2016) along the northern slope of the Volcanologists Massif, in the south-western Bering Sea. The seafloor was explored using the ROV Comanche 18.
Elena Rybakova   +4 more
doaj   +2 more sources

Reconstructing SALMFamide neuropeptide precursor evolution in the phylum Echinodermata: ophiuroid and crinoid sequence data provide new insights

open access: yesFrontiers in Endocrinology, 2015
The SALMFamides are a family of neuropeptides that act as muscle relaxants in echinoderms. Analysis of genome/transcriptome sequence data from the sea urchin Strongylocentrotus purpuratus (Echinoidea), the sea cucumber Apostichopus japonicus ...
Maurice R Elphick   +6 more
doaj   +1 more source

Discovery of novel representatives of bilaterian neuropeptide families and reconstruction of neuropeptide precursor evolution in ophiuroid echinoderms [PDF]

open access: yesOpen Biology, 2017
Neuropeptides are a diverse class of intercellular signalling molecules that mediate neuronal regulation of many physiological and behavioural processes.
Meet Zandawala   +7 more
doaj   +1 more source

Echinoderms from Santa Catarina, southern Brazil: an update on biodiversity and distribution

open access: yesPapéis Avulsos de Zoologia, 2022
We provide an update, based on literature records, on biodiversity and distribution of echinoderms along the state of Santa Catarina, Brazil. Sixty-one echinoderms taxa are reported, in 36 families.
Nataly Nunes Slivak   +2 more
doaj   +1 more source

What makes an ophiuroid? A morphological study of the problematic Ordovician stelleroid Stenaster and the palaeobiology of the earliest asteroids and ophiuroids [PDF]

open access: yesZoological Journal of the Linnean Society, 1999
Abstract Extant asteroids and ophiuroids [Echinodermata] are distinguished by differences in arm support, water vascular system structures and in details of arm and jaw structure. However, some lower Palaeozoic taxa show combinations of both asteroid-like and ophiuroid-like characters and their morphology and functional biology is poorly understood ...
openaire   +1 more source

A Pennsylvanian Ophiuroid from Southwestern Iowa [PDF]

open access: yes, 1973
A collection of fossils from the Doniphan Shale, Virgilian Stage, Upper Pennsylvanian contains a small ophiuroid identified as Archaeophiomusium burrisi (Miller).
Strimple, Harrell L., Pabian, Roger K.
core   +1 more source

Eremochloa ophiuroides (centipedegrass). [PDF]

open access: yes, 2020
Abstract E. ophiuroides is a perennial grass that has been intentionally introduced into tropical and warm temperate areas to be used as a lawn grass (USDA-ARS, 2016). In the United States it has become a common lawn grass principally in the southeastern states (Brosnan and Deputy, 2008; Duble, 2016).
openaire   +1 more source

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