Macrocnemina Haddon & Shackleton 1891

Suborder Macrocnemina Haddon & Shackleton, 1891 Material examined: BBB 2016: St. 18; St. 21; St. 40. PD BB 2017: St. 29; St. 43. Remarks: All the colonies were associated with octocorals and polyps were linked by stolons or by a continuous coenenchyme. The column and sometimes the coenenchyme we...

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Bibliographic Details
Main Authors: Schejter, L., Genzano, G., Pérez, C. D., Acuña, F., Cordeiro, R. T. S., Silva, R. A., Garese, A., Bremec, C. S.
Format: Text
Language:unknown
Published: Zenodo 2020
Subjects:
Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Zoantharia
Antarctic
Shackleton
Haddon
Acuña
Antarc*
Online Access:https://dx.doi.org/10.5281/zenodo.4425857
https://zenodo.org/record/4425857
Description
Summary:Suborder Macrocnemina Haddon & Shackleton, 1891 Material examined: BBB 2016: St. 18; St. 21; St. 40. PD BB 2017: St. 29; St. 43. Remarks: All the colonies were associated with octocorals and polyps were linked by stolons or by a continuous coenenchyme. The column and sometimes the coenenchyme were encrusted with sand, which made histological and microanatomy analysis difficult. Our preliminar analysis showed two morphotypes. The morphotype I (four lots BBB 2016: St. 40 (2), St. 18, St. 21) are colonies with columns and coenenchyme heavily encrusted, and the morphotype II (two lots PD BB 2017: St. 43 and St. 29) are colonies with less sand incrustations in the column. The morphotype I was found associated to Alcyonium sollasi and octocoral axes while the morphotype II was found on primnoid colonies ( Thouarella spp). Histological and molecular analyses are in progress to define their taxonomic status. There is only one record of zoanthids in the Argentinian continental shelf. Schejter & Mantelatto (2011) cited Epizoanthus paguricola off Buenos Aires coast (85–131 m), but the records of the present study represent the first in Sub-antarctic waters. : Published as part of Schejter, L., Genzano, G., Pérez, C. D., Acuña, F., Cordeiro, R. T. S., Silva, R. A., Garese, A. & Bremec, C. S., 2020, Checklist of Benthic Cnidaria in the SW Atlantic Ocean (54 ºS- 56 ºS), pp. 201-239 in Zootaxa 4878 (2) on pages 216-217, DOI: 10.11646/zootaxa.4878.2.1, http://zenodo.org/record/4424884 : {"references": ["Schejter, L. & Mantelatto, F. L. (2011) Shelter association between the hermit crab Sympagurus dimorphus and the zoanthid Epizoanthus paguricola in the southwestern Atlantic Ocean. Acta Zoologica, 92, 141 - 9. https: // doi. org / 10.1111 / j. 1463 - 6395.2009.00440. x"]}

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