Results 101 to 110 of about 161 (125)
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Invertebrate Systematics, 2021
Libinia, a genus of spider crabs, encompasses 10 valid species, three from the eastern Pacific and seven from the western Atlantic. Previous phylogenetic hypotheses based on molecular and larval morphological data suggested an uncertain position of the genus Libinia within the family Epialtidae. Therefore, we investigated the evolutionary relationships
Ana Francisca Tamburus +1 more
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Libinia, a genus of spider crabs, encompasses 10 valid species, three from the eastern Pacific and seven from the western Atlantic. Previous phylogenetic hypotheses based on molecular and larval morphological data suggested an uncertain position of the genus Libinia within the family Epialtidae. Therefore, we investigated the evolutionary relationships
Ana Francisca Tamburus +1 more
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Arthropod Structure & Development, 2009
Decapod crustaceans have been the focus of neuroethological studies for decades. With few exceptions, however, their musculature remains scarcely described. We study the neuroethology of legged locomotion in the portly spider crab, Libinia emarginata (Brachyura, Majoidea), which preferentially walks forward.
A G, Vidal-Gadea, J H, Belanger
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Decapod crustaceans have been the focus of neuroethological studies for decades. With few exceptions, however, their musculature remains scarcely described. We study the neuroethology of legged locomotion in the portly spider crab, Libinia emarginata (Brachyura, Majoidea), which preferentially walks forward.
A G, Vidal-Gadea, J H, Belanger
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Crustaceana, 2021
Abstract This article uses the male spider crab Lissa chiragra, collected from Ras el Tin beach on the Mediterranean Sea at Alexandria, Egypt between January and December 2017, as a model to isolate the histone variants, H2A, H2B, H3 and H4 from spermatozoal nuclei to detect the presence of their genes and the chromatin-associated proteins.
Ibrahim Gaber, Abdallah Al-Mahasneh
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Abstract This article uses the male spider crab Lissa chiragra, collected from Ras el Tin beach on the Mediterranean Sea at Alexandria, Egypt between January and December 2017, as a model to isolate the histone variants, H2A, H2B, H3 and H4 from spermatozoal nuclei to detect the presence of their genes and the chromatin-associated proteins.
Ibrahim Gaber, Abdallah Al-Mahasneh
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Reproduction in the spider crab Maiopsis panamensis (Decapoda: Majoidea) in the Gulf of California
Invertebrate Biology, 2021AbstractThe spider crab Maiopsis panamensis is the largest brachyuran crab in the Gulf of California and is found mainly in deep water. This study of the spider crab reproductive cycle in Mexican coastal waters used histological and chemical methods to describe oogenesis in detail and to define a scale of maturity based on visible characteristics for ...
Carmen Rodríguez‐Jaramillo +3 more
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Invertebrate Systematics, 2014
Mithracid crabs comprise a primarily subtidal reef- and rubble-dwelling group inhabiting both tropical and subtropical seas. Despite their relative ubiquity in many hard-substrate environments, there has been little consensus about their phylogenetic relationships or whether their group rank should be that of subfamily or family.
Windsor, Amanda M., Felder, Darryl L.
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Mithracid crabs comprise a primarily subtidal reef- and rubble-dwelling group inhabiting both tropical and subtropical seas. Despite their relative ubiquity in many hard-substrate environments, there has been little consensus about their phylogenetic relationships or whether their group rank should be that of subfamily or family.
Windsor, Amanda M., Felder, Darryl L.
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The Snow Crab, Chionoecetes opilio (Decapoda, Majoidea, Oregoniidae) in the Barents Sea
2011The snow crab, Chionoecetes opilio (Fabricius, 1788), is recorded from the North Pacific, Arctic and Northwest Atlantic. In 1996 however, Russian fishing vessels captured five snow crabs in the Barents Sea and since then, fishing vessels operating in the area have occasionally reported this spider crab in the by-catch.
Ann-Lisbeth Agnalt +4 more
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First record of two rare spider crabs (Crustacea: Decapoda: Brachyura: Majoidea) from Brazil
Zootaxa, 2019In this paper we report the first occurrence of two rare spider crabs (Majoidea) from Brazil, with additional morphological information based on material collected in the upper continental slope of the Potiguar Basin, northeast of Brazil. Lepteces ornatus Rathbun, 1893 (Epialtidae), originally described from the Gulf of Mexico and also reported from ...
Alves-Júnior, Flavio De Almeida +3 more
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Zootaxa, 2013
William Stimpson (1860) established Mimulus (Brachyura: Majoidea: Epialtidae), with a single species, M. foliatus. Rathbun (1894) placed the genus in synonymy with Pugettia Dana, 18951, but subsequent authors have considered Mimulus to be a valid genus. Genetic evidence and re-examination of the morphology indicate that M.
Wicksten, Mary K., Stachowicz, John J.
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William Stimpson (1860) established Mimulus (Brachyura: Majoidea: Epialtidae), with a single species, M. foliatus. Rathbun (1894) placed the genus in synonymy with Pugettia Dana, 18951, but subsequent authors have considered Mimulus to be a valid genus. Genetic evidence and re-examination of the morphology indicate that M.
Wicksten, Mary K., Stachowicz, John J.
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Crustaceana, 2003
[A new species of Majoidea belonging to the family Pisidae is described from the Pacific coast of Mexico. The species is assigned to the genus Loxorhynchus Stimpson, endemic to the east Pacific and known from two species only. It is distinguished from L. grandis Stimpson, 1857, the type species, and from L.
Michel Hendrickx, Jose Luis Cervantes
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[A new species of Majoidea belonging to the family Pisidae is described from the Pacific coast of Mexico. The species is assigned to the genus Loxorhynchus Stimpson, endemic to the east Pacific and known from two species only. It is distinguished from L. grandis Stimpson, 1857, the type species, and from L.
Michel Hendrickx, Jose Luis Cervantes
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Molecular Phylogenetics and Evolution, 2008
In this study, we constructed the first molecular phylogeny of the diverse crab superfamily Majoidea (Decapoda: Pleocyemata: Brachyura), using three loci (16S, COI, and 28S) from 37 majoid species. We used this molecular phylogeny to evaluate evidence for phylogenetic hypotheses based on larval and adult morphology.
Hultgren, Kristin M. +1 more
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In this study, we constructed the first molecular phylogeny of the diverse crab superfamily Majoidea (Decapoda: Pleocyemata: Brachyura), using three loci (16S, COI, and 28S) from 37 majoid species. We used this molecular phylogeny to evaluate evidence for phylogenetic hypotheses based on larval and adult morphology.
Hultgren, Kristin M. +1 more
exaly +4 more sources