Salmacina tribranchiata Moore, 1923

Yanez-Rivera, Beatriz, Tovar-Hernandez, Maria Ana, Galvan-Villa, Cristian Moises & Rios-Jara, Eduardo, 2020, Tubicolous polychaete worms (Annelida) from Bahia de Chamela Islands Sanctuary, Mexico, with the description of a new bamboo worm, Biodiversity Data Journal 8, pp. 57572-57572 : 57572

Salmacina tribranchiata Moore, 1923

Filograna tribranchiata in Moore 1923: 250-251.

Salmacina dysteri tribranchiata .- Monro 1933: 1090-1091, Text-figure 31.- Berkeley and Berkeley 1941: 56.

Salmacina dysteri (not Huxley 1855).- Steinbeck and Ricketts 1941: 367.

Salmacina tribranchiata .- Rioja 1941b: 738-739, pl. 9, figs. 11-14.- Hartman 1961: 44.- Hartman 1969: 771-772, figs. 1-6.- Salazar-Vallejo and López-Muraira 1983: 111-112.- Bastida-Zavala 2008: 43, figs. 10H-J.- Bastida-Zavala et al. 2016: 433-434, figs. 8, 12E-F.

Materials

Type status: Other material. Occurrence: catalogNumber: LEMA-PO172 ; recordedBy: Irving Ramírez-Santana; individualCount: 1; Taxon: phylum: Annelida; class: Polychaeta; order: Sabellida; family: Serpulidae; genus: Salmacina; Location: higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; islandGroup: Islas de Chamela; island: Isla Cocinas; country: México; countryCode: MX; stateProvince: Jalisco; municipality: La Huerta; verbatimDepth: 8; verbatimLatitude: 19°32 ’45’’ N; verbatimLongitude: 105°06 ’27’’ W; Identification: identifiedBy: Beatriz Yáñez-Rivera; Event: samplingProtocol: Scuba dive; eventDate: April 23, 2009; year: 2009; month: 4; day: 23; habitat: On coral; fieldNumber: Site 15; Record Level: language: Spanish; institutionID: Universidad de Guadalajara; collectionID: Colección Biológica del Laboratorio de Ecosistemas Marinos y Acuicultura; institutionCode: UDG; collectionCode: LEMA

Description

Gregarious worm with tubes white, thin, with transversal ridges, lacking longitudinal ridges, peristomes or alveoli (D). Radiolar crown with 3-4 pairs of radioles (Fig. 14 A). Opercular peduncle or operculum absent (Fig. 14 B). Thorax with eigth chaetigers. Collar with fin- and blade-chaetae, with proximal denticulate expansion separate from the distal limbate zone, with 3-5 large teeth. Thoracic with " Apomatus " chaetae and thoracic uncini as rasp-shaped plates with 8-9 rows of teeth. Posterior abdomen with glandular areas (Fig. 14 C).

Distribution

Widely reported in the Mexican Pacific ( Bastida-Zavala 2008, Bastida-Zavala et al. 2016).

Figures

Figure 14. Salmacina tribranchiata (Moore, 1923) and Spirobranchus minutus Rioja, 1941 b. Salmacina tribranchiata: A) Entire body, tube removed, B) radiolar crown and thorax, C) abdomen and pygidium, D) tubes. Spirobranchus minutus: E) radiolar crown and operculum, F) opercular peduncle and operculum. Scale bars: A-C) 0.2 mm, D) 2 mm, E) 1 mm, F) 0.5 mm.