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      Checklist of echinoderms (Echinodermata) from the Southern Mexican Pacific: a historical review

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          Abstract

          Resumen Los equinodermos del Pacífico Sur mexicano han sido estudiados por tres siglos, sin embargo discrepancias en la nomenclatura de algunas especies han prevalecido a través del tiempo. El objetivo de este trabajo es presentar la primera lista de especies actualizada de todos los nombres válidos y sinonimias, así como una revisión histórica del estudio de los equinodermos en el Pacífico Sur mexicano. La lista de especies se basa en una exhaustiva búsqueda de registros de literatura y de especímenes depositados en colecciones de referencia. Existen 162 especies válidas de equinodermos en el Pacífico Sur mexicano incluidas en 96 géneros, 54 familias y 20 órdenes. El estado de Guerrero presentó 135 especies, Oaxaca, 94 y Chiapas, 15. Se actualizó la lista de especies y se añadieron cinco nuevos registros de especies (Microphiopholis platydisca, Ophiostigma tenue, Arbacia stellata, Thyone bidentata, Chiridota rigida) para el Pacífico Sur mexicano y uno para el Pacífico mexicano (Encope laevis). Esta lista de especies incrementa el número de especies para el área de estudio, sin embargo, los estudios sugieren que aún existen más especies por ser descubiertas.

          Translated abstract

          Abstract The echinoderms of the Southern Mexican Pacific have been studied for three centuries, but discrepancies in the nomenclature of some species have pervaded through time. The objective of this work is to present the first updated checklist of all valid species and synonyms, and a historical review of the study of the echinoderms of the Southern Mexican Pacific is also presented. The checklist is based on an exhaustive published literature search and records of specimens deposited in museum and curated reference collections. There are 162 species of echinoderms in the Southern Mexican Pacific from 96 genera, 54 families and 20 orders. The State of Guerrero presented a total of 135 species, Oaxaca 94 and Chiapas 15. We updated the list and added five new records of the species (Microphiopholis platydisca, Ophiostigma tenue, Arbacia stellata, Thyone bidentata, Chiridota rigida) for the Southern Mexican Pacific and one for the Mexican Pacific (Encope laevis). This checklist expands the number of species known for the study area; nevertheless studies suggest that still more species are yet to be discovered. Rev. Biol. Trop. 63 (Suppl. 2): 87-114. Epub 2015 June 01.

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          Marine Biodiversity in the Caribbean: Regional Estimates and Distribution Patterns

          This paper provides an analysis of the distribution patterns of marine biodiversity and summarizes the major activities of the Census of Marine Life program in the Caribbean region. The coastal Caribbean region is a large marine ecosystem (LME) characterized by coral reefs, mangroves, and seagrasses, but including other environments, such as sandy beaches and rocky shores. These tropical ecosystems incorporate a high diversity of associated flora and fauna, and the nations that border the Caribbean collectively encompass a major global marine biodiversity hot spot. We analyze the state of knowledge of marine biodiversity based on the geographic distribution of georeferenced species records and regional taxonomic lists. A total of 12,046 marine species are reported in this paper for the Caribbean region. These include representatives from 31 animal phyla, two plant phyla, one group of Chromista, and three groups of Protoctista. Sampling effort has been greatest in shallow, nearshore waters, where there is relatively good coverage of species records; offshore and deep environments have been less studied. Additionally, we found that the currently accepted classification of marine ecoregions of the Caribbean did not apply for the benthic distributions of five relatively well known taxonomic groups. Coastal species richness tends to concentrate along the Antillean arc (Cuba to the southernmost Antilles) and the northern coast of South America (Venezuela – Colombia), while no pattern can be observed in the deep sea with the available data. Several factors make it impossible to determine the extent to which these distribution patterns accurately reflect the true situation for marine biodiversity in general: (1) highly localized concentrations of collecting effort and a lack of collecting in many areas and ecosystems, (2) high variability among collecting methods, (3) limited taxonomic expertise for many groups, and (4) differing levels of activity in the study of different taxa.
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            The phylogeny and classification of post-Palaeozoic echinoids

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              Ophiuroid phylogeny and higher taxonomy: morphological, molecular and palaeontological perspectives

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbt
                Revista de Biología Tropical
                Rev. biol. trop
                Universidad de Costa Rica (San José, San José, Costa Rica )
                0034-7744
                0034-7744
                June 2015
                : 63
                : suppl 2
                : 87-114
                Affiliations
                [1] orgnameUniversidad Autónoma Metropolitana Mexico beckygranja@ 123456gmail.com
                [5] México, D.F orgnameUniversidad Autónoma Metropolitana orgdiv1Departamento de Hidrobiología orgdiv2División CBS Mexico alopez@ 123456xanum.uam.mx
                [4] La Paz orgnameInstituto Politécnico Nacional orgdiv1Centro Interdisciplinario de Ciencias Marinas Mexico dainoper@ 123456hotmail.com
                [2] México, D.F orgnameUniversidad Nacional Autónoma de México orgdiv1Laboratorio de Sistemática y Ecología de Equinodermos Mexico franciscosolismarin@ 123456gmail.com
                [3] Puerto Ángel orgnameUniversidad del Mar orgdiv1Instituto de Recursos Mexico fbv@ 123456angel.umar.mx
                Article
                S0034-77442015000600087
                10.15517/rbt.v63i2.23131
                014da24f-2687-4deb-a193-be69f2d6938c

                This work is licensed under a Creative Commons Attribution 3.0 International License.

                History
                : 08 December 2014
                : 22 August 2014
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 173, Pages: 28
                Product

                SciELO Costa Rica


                Echinoidea,Asteroidea,Ophiuroidea,Holothuroidea,México
                Echinoidea, Asteroidea, Ophiuroidea, Holothuroidea, México

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