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New records and redescription of Halcurias pilatus and Halcurias mcmurrichi (Actiniaria, Endocoelantheae)

Published online by Cambridge University Press:  13 August 2013

Estefanía Rodríguez ,
Marisol Mendoza  and
Verena Häussermann
Estefanía Rodríguez*
Affiliation:
Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA
Marisol Mendoza
Affiliation:
Escuela de Biología, Benemérita Universidad Autónoma de Puebla, Blvd. Valsequillo y Av. San Claudio Edificio 112-A, Ciudad Universitaria Col. Jardines de San Manuel, C.P. 72570 Puebla, Mexico
Verena Häussermann
Affiliation:
Pontificia Universidad Católica de Valparaíso, Facultad de Recursos Naturales, Escuela de Ciencias del Mar, Avda. Brasil 2950, Valparaíso, Chile
*
Correspondence should be addressed to: E. Rodríguez, Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street New York, NY 10024, USA email: erodriguez@amnh.org.
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Abstract

We redescribe and illustrate Halcurias pilatus McMurrich, 1893 and H. mcmurrichi Uchida, 2004 (Endocoelantheae, Halcuriidae) from newly collected specimens from Southern Chile and deep-water reefs off Florida, respectively. Halcurias pilatus was previously considered to have a disjunct distribution until Uchida (2004) described a new species for the material from the Bahamas. However, the description of H. mcmurrichi does not meet modern taxonomic standards. We provide new anatomical and cnidae data for H. pilatus and H. mcmurrichi. Both species differ in the distribution and cnidom of nematocyst batteries in the column, development of microcnemes mesenteries, cnidae and geographical distribution. We find that H. pilatus can have a weak mesogleal marginal sphincter and amend accordingly the diagnoses of the genus Halcurias, family Halcuriidae, and suborder Endocoelantheae. These new records represent the first time both species have been collected since their original descriptions.

Keywords

Cnidariadeep waterLittle Bahamas BankMiami TerraceHalcuriidaeChilefjord region
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 93 , Issue 8 , December 2013 , pp. 2089 - 2100
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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