Tubicolous polychaete worms (Annelida) from Bahia de Chamela Islands Sanctuary, Mexico, with the description of a new bamboo worm Author Yanez-Rivera, Beatriz CONACYT- Centro de Investigacion en Alimentacion y Desarrollo A. C. (CIAD), Unidad Mazatlan en Acuicultura y Manejo Ambiental, Mazatlan, Mexico https://orcid.org/0000-0002-3192-2142 beyariv@ciad.mx Author Tovar-Hernandez, Maria Ana Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Laboratorio de Biosistematica, San Nicolas de los Garza, Nuevo Leon, Mexico https://orcid.org/0000-0002-5263-2830 maria_ana_tovar@yahoo.com Author Galvan-Villa, Cristian Moises Universidad de Guadalajara, Centro Universitario de Ciencias Biologicas y Agropecuarias, Departamento de Ecologia, Zapopan, Mexico https://orcid.org/0000-0003-1927-2500 Author Rios-Jara, Eduardo Universidad de Guadalajara, Centro Universitario de Ciencias Biologicas y Agropecuarias, Departamento de Ecologia, Zapopan, Mexico text Biodiversity Data Journal 2020 8 57572 57572 http://dx.doi.org/10.3897/BDJ.8.e57572 journal article http://dx.doi.org/10.3897/BDJ.8.e57572 1314-2828-8-e57572 CE3CFA74ABAA48A49EB22776C731837F 9627C5A06E285DBFB389A57DFEE8433F Chone mollis (Bush, 1904) Metachone mollis in Bush 1904 : 216, pt. 35, figs. 19-20, 28. Chone mollis .- Hartman 1942 : 87, figs. 141-143; Hartman 1944b : 279; Hartman 1969 : 673; Banse 1972 : 469, fig. 3.- Tovar-Hernandez 2007 : 539-543, figs. 10, 19B. Materials Type status: Other material . Occurrence: catalogNumber: LEMA-PO163 ; recordedBy: Beatriz Yanez-Rivera ; individualCount: 2 ; Taxon: phylum: Annelida; class: Polychaeta; order: Sabellida; family: Sabellidae; genus: Chone; Location: higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; islandGroup: Islas de Chamela; island: Isla Cocinas; country: Mexico ; countryCode: MX; stateProvince: Jalisco; municipality: La Huerta; maximumDepthInMeters: 8; verbatimLatitude: 19°33 '06'' N ; verbatimLongitude: 105°06 '43'' W ; Identification: identifiedBy: Maria Ana Tovar-Hernandez ; Event: samplingProtocol: Dredge ; eventDate: June 27, 2013 ; year: 2013; month: 6; day: 27; habitat: Sand-rubble; fieldNumber: Site 3; Record Level: language: Spanish; institutionID: Universidad de Guadalajara; collectionID: Coleccion Biologica del Laboratorio de Ecosistemas Marinos y Acuicultura; institutionCode: UDG ; collectionCode: LEMA Type status: Other material . Occurrence: catalogNumber: LEMA-PO164 ; recordedBy: Beatriz Yanez-Rivera ; individualCount: 1 ; Taxon: phylum: Annelida; class: Polychaeta; order: Sabellida; family: Sabellidae; genus: Chone; Location: higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; islandGroup: Islas de Chamela; island: Isla La Colorada; country: Mexico ; countryCode: MX; stateProvince: Jalisco; municipality: La Huerta; maximumDepthInMeters: 6; verbatimLatitude: 19°32 '23'' N ; verbatimLongitude: 105°05 '31'' W ; Identification: identifiedBy: Maria Ana Tovar-Hernandez ; Event: samplingProtocol: Dredge ; eventDate: June 26, 2013 ; year: 2013; month: 6; day: 26; habitat: Sand-rubble; fieldNumber: Site 17; Record Level: language: Spanish; institutionID: Universidad de Guadalajara; collectionID: Coleccion Biologica del Laboratorio de Ecosistemas Marinos y Acuicultura; institutionCode: UDG ; collectionCode: LEMA Description Body 15 mm long, 1.4 mm wide, radiolar crown 3.2 mm long with 12 pairs of radioles, thorax with eight chaetigers and abdomen with 30 chaetigers. Solitary fan worm from soft bottoms. Branchial crown cone-shaped when it is open. Radioles united by a long palmate membrane that occupies 3/4 of their length (Fig. 11 A, C). Radioles with broad flanges (Fig. 11 C). Ventral shield of collar half-circle shaped. Anterior peristomial ring lobe triangular, exposed partially above the collar margin (Fig. 11 D). Glandular ridge of chaetiger 2 narrow all around, it is whitish in unstained worms or stained with methyl green (Fig. 11 A-B). Taxon discussion One specimen was found regenerating a radiolar crown. This species has been reported in the Pacific coast of Panama and some localities from Mexican Pacific ( Tovar-Hernandez 2007 ).