Pomatostegus stellatus ( Abildgaard, 1789 )

Sánchez-Ovando, J. Pablo & Bastida-Zavala, J. Rolando, 2021, Redescription of Pomatostegus stellatus (Abildgaard, 1789) and P. kroyeri Mörch 1863 (Polychaeta: Serpulidae) from the Tropical American coasts, Zootaxa 4970 (3), pp. 495-514 : 497-504

publication ID

https://doi.org/ 10.11646/zootaxa.4970.3.3

publication LSID

lsid:zoobank.org:pub:7F5D66E4-C11E-4BD9-AAED-82ED93CD7C0C

DOI

https://doi.org/10.5281/zenodo.6487381

persistent identifier

https://treatment.plazi.org/id/03E387FC-9E65-CE27-CA9A-B2ABABD500FE

treatment provided by

Plazi

scientific name

Pomatostegus stellatus ( Abildgaard, 1789 )
status

 

Pomatostegus stellatus ( Abildgaard, 1789) View in CoL

( Figures 1A–D View FIGURE 1 , 2A–F View FIGURE 2 , 5A–B View FIGURE 5 , 6A–C View FIGURE 6 , 8A View FIGURE 8 , 9 View FIGURE 9 )

Terebella stellata Abildgaard, 1789: 142–144 View in CoL , pl. A, figs. 5A–B (type locality: West Indies, Caribbean Sea).

Pomatostegus macrosoma View in CoL .— Schmarda, 1861: 31–32, pl. 21, fig. 182 (type locality: South of Jamaica; in corals “madreporen”); Mörch, 1863: 398–399 (comparison with P. stellatus View in CoL ); Bastida-Zavala & Salazar-Vallejo 2000: 816 (synonymy based on morphometric analyses).

Pomatostegus brachysoma View in CoL .— Schmarda, 1861: 32, pl. 21, fig. 183 (type locality: Jamaica; in coral reef); Mörch 1863: 400 (comparison with P. stellatus View in CoL ); Bush 1910: 498–500 ( Dominica Island, Lesser Antilles); Bastida-Zavala & Salazar-Vallejo 2000: 816 (synonymy based on morphometric analyses).

Pomatostegus stellatus tetrapoma View in CoL .— Mörch, 1863: 397 (type locality: Saint Thomas, Lesser Antilles); Bastida-Zavala & Salazar-Vallejo 2000: 816 (synonymy based on morphometric analyses).

Pomatostegus stellatus fruticosa .— Mörch, 1863: 397–398 (type locality: Saint Thomas, Lesser Antilles); Rullier 1974: 72, fig. 9A–I (Batabanó Bay, Cuba; 2 m; in sponge); Bastida-Zavala & Salazar-Vallejo 2000: 816 (synonymy based on morphometric analyses).

Pomatostegus quadruplicatus View in CoL .— Krøyer in Mörch, 1863: 398, pl. 11, fig. 13 (type locality: Saint Croix, Lesser Antilles; referred as P. stellatus pentapoma View in CoL ); Bastida-Zavala & Salazar-Vallejo 2000: 816 (synonymy based on morphometric analyses).

Pomatostegus stellatus View in CoL .— Mörch 1863: 396–397, pl. 11, fig. 14 ( Saint Croix and Saint Thomas, Virgin Islands); Benedict 1887: 551, pl. 22, figs 32–35, pl. 23, figs 36–37 ( Jamaica and Cura ҫao, Caribbean Sea; shallow water); Ehlers 1887: 296–300 (East Key, Florida; 24 m); Treadwell 1902: 210 (Caballo Blanco Reef, Guanica Bay and Ensenada Honda, Puerto Rico); Augener 1927: 79, text fig. 7 (Spaanse Water and Caracas Bay, Cura ҫao; on coral and mangrove roots); Treadwell 1928: 483 (near to Saba Island, Antilles; 130 m); Augener 1934: 118 (Los Testigos Archipelago, Venezuela, and Tagduga (now Taganga), Santa Marta, Colombian Caribbean; intertidal to 11 m); Rioja 1958: 293–296, figs 92–100 (Chankanaab Lagoon, Cozumel, Mexican Caribbean; on coral); Zibrowius 1970: 13–14, pl. 3, fig. 16–20 (Abrolhos Archipelago, Brazil; 16–48 m; sand and coral debris); Zibrowius 1973: 61–62 (Setté Cama, Gabonese Republic); ten Hove & San Martín 1995: 17 (De la Juventud Island, Cuba; 1–6 m, on mollusk shells, mangrove roots, rocks, corals and wood debris); Perkins 1998: 95 (checklist of shallow-water polychaetes from Florida); Dueñas 1999: 14 (Santa Marta, Tayrona National Park, Providencia Island, Cartagena Bay and Cispatá Bay, Colombia); Bastida-Zavala & Salazar-Vallejo 2000: 815–817, figs 3b, 5g –q, 6a–d (San Juan, Puerto Rico; De la Juventud Island, Cuba; eastern Mexico: Alacranes Reefs, Ría Lagartos and San Felipe, Yucatán; Contoy Island, Nizuc Point, Nichupté Lagoon, Xcacel, Xcayal, Cozumel Island, Xahuayxol and Chinchorro Bank, Quintana Roo; intertidal to 43 m; under rocks with algae, seagrass and sponges, corals and on cement pier covered by Millepora spp. ); Bastida-Zavala 2009: 531 (identification key for Tropical American coasts); Amaral et al. 2013: 111 (Polychaete catalogue from Brazil); Humann et al. 2013: 83 (Florida, Bahamas and Caribbean Sea; in vivo color photograph); Hepburn et al. 2015: 192, Table 2 (Puerto Morelos reef, calcareous encrusters on artificial substrates); Schrieken & Van Leeuwen 2016: 43 (field guide to the marine fauna of St. Eustatius, in vivo color photograph); Bastida-Zavala et al. 2017: 40–42, Table 1 (fouling plate in Biscayne Bay, Florida); Leon et al. 2019: Table 1S, supplementary information in Excel file (checklist from the Caribbean coast of Colombia); Bastida-Zavala & Sánchez-Ovando 2021: 26 (identification key for Tropical American coasts).

Material examined: 39 specimens.

Veracruz: (Total: 3 spec.), UANL 5672 View Materials and 5673, 2 spec. (Pájaros Reef, intertidal zone, on coral, February 24, 2002, coll. V. Díaz-Castañeda); UANL 5832 View Materials , 1 spec. (Blanca Reef, intertidal zone, on coral, July 21, 2002, coll. V. Díaz-Castañeda) .

Quintana Roo: (Total: 27 spec.), ECOSUR, 6 spec. (Playa Azul, Cozumel , intertidal zone, on rock, March 25, 2001, coll. HA. ten Hove); GoogleMaps ECOSUR, 3 spec. (off SEDENA, Cozumel , 2 m, on Millepora sp. , March 24, 2001, coll. HA. ten Hove); GoogleMaps ECOSUR, 1 spec. ( Contoy Island , on rock, March 2, 2001, coll. P. Salazar-Silva); GoogleMaps ECOSUR, 2 spec. (Cozumel, on coral, June 5, 1996, coll. S.I. Salazar-Vallejo); GoogleMaps ECOSUR-P0355, 1 spec. (Mahahual, on coral, March 22, 2000, coll. S.I. Salazar-Vallejo); GoogleMaps ECOSUR-P0356, 1 spec. ( Contoy Island , on coral, June 1, 2000, coll. S.I. Salazar-Vallejo & L.F. Carrera-Parra); GoogleMaps ECOSUR-P0357, 8 spec., ( Contoy Island , on coral, February 18, 2001, coll. S.I. Salazar-Vallejo et al.); GoogleMaps ECOSUR-P0358, 1 spec. ( Contoy Island , on coral, March 18, 2001, coll. S.I. Salazar-Vallejo et al.); GoogleMaps ECOSUR-P1236, 1 spec. ( Contoy Island , on coral, February 22, 1999, coll. S.I. Salazar-Vallejo & L.F. Carrera-Parra); GoogleMaps ECOSUR, 1 spec. ( Contoy Island , Ixlache Reef, on coral, 2 m, February 25, 2008, coll. S.I. Salazar-Vallejo & L.F. Carrera-Parra, fixed and preserved in alcohol 96%); GoogleMaps ECOSUR, 1 spec. ( Contoy Island , on rock, 3 m, February 26, 2008, coll. S.I. Salazar-Vallejo & L.F. Carrera-Parra, fixed and preserved in alcohol 96%); GoogleMaps UMML, 1 spec. (north of Arrowsmith Bank , 21°15’N, 86°21’W, R / V ‘Gerda’, cruise 6717, sta. 883, 37 m, September 9, 1967, specimen dried) GoogleMaps .

Jamaica: ( Total : 2 spec. + 1 without radiolar crown), UMML, 2 spec. (south of the island, 17°42.9’N, 76°35.3’W, R / V ‘ Pillsbury’ , cruise 7006, sta. 1206, Isaacs-Kidd mid-water trawl, ~ 50–80 m, July 5, 1970); GoogleMaps UMML, 1 spec. (south of Old Harbour Bay, 17°36’N 77°03’W, R / V ‘Pillsbury ‘, cruise 7006, sta. 1215, otter trawl, 24 m, on coral, July 5, 1970) GoogleMaps .

Honduras: ( Total : 1 spec.), UMML, 1 spec. (west of Trujillo Bay, 15°58’N, 86°09’W, R / V ‘ Pillsbury’, cruise 6802, sta. 629, otter trawl, 40 m, March 21, 1968) GoogleMaps .

Nicaragua: ( Total : 1 spec.), UMML, 1 spec. (east of Miskitos Keys, 15°15’N, 81°51’W, R / V ‘ Pillsbury’, cruise 7101, sta. 1358, otter trawl, 18 m, February 1, 1971) GoogleMaps .

Lesser Antilles: (Total: 4 spec.), UMML, 2 spec. (east of Caicos Islands, Turks and Caicos, 21°41’N, 71°23’W, R / V ‘ Pillsbury’ , cruise 7106, sta. 1423, 18 m, July 19, 1971) GoogleMaps ; UMML, 1 spec. (north of Antigua Island, Antigua and Barbuda, 17°18’N, 61°52’W, R / V ‘ Pillsbury’ , cruise 6907, sta. 968, otter trawl, 18 m, July 20, 1969) GoogleMaps ; UMML, 1 spec. (east of Saint Vincent Island, Saint Vincent and the Grenadines, 13°11’N, 61°06’W, R / V ‘ Pillsbury’ , cruise 6907, sta. 878, Blake trawl, 39 m, July 6, 1969. GoogleMaps

Redescription. Tube white, with five longitudinal ridges, the middle largest, forming an elevated crest that ends in a horizontal spine protruding from tube aperture, semi-circular in cross-section; some tubes with shallow transverse ridges ( Fig. 8A View FIGURE 8 ). Body yellowish, 35 mm long. Thorax 5 mm long and 4 mm wide, with seven chaetigers. Abdomen with 95 chaetigers. Radioles with 1–3 bands of brown iridescent pigment ( Fig. 1D View FIGURE 1 ). Opercular peduncle maculated with brown pigment, 10 mm long including the opercular plates, and 2.8 mm wide in the basal plate, with wide wings with the wavy edge; inserted in right lobe ( Fig. 1B–C View FIGURE 1 ). Operculum chitinous, 4 mm long with four concentric festooned shallow dish-shaped plates, successive plates widely separated between each one ( Fig. 1A View FIGURE 1 ). Plates joined by a central hollow column; column tip with one circlet of spines; circlets of spines present at the basis of each plate (immediately below each plate; Fig. 1A View FIGURE 1 ). Thoracic membrane short, extending to segment 3. Collar with two kinds of chaetae, Spirobranchus - type serrated in subapical section and with a wide proximal boss (twice wider than distal blade) and capillaries chaetae ( Fig. 2A View FIGURE 2 ). Thoracic chaetigers with two kinds of chaetae, Apomatus - type ( Fig. 2C View FIGURE 2 ) and limbate ( Fig. 2B View FIGURE 2 ). Abdominal chaetae flat narrow geniculate, with long blade ( Fig. 2D View FIGURE 2 ). Thoracic uncini of segment 5 saw-shaped, with 11–12 teeth ( Fig. 2E View FIGURE 2 ). Abdominal uncini similar to thoracic uncini but smaller, with 7–8 teeth ( Fig. 2F View FIGURE 2 ).

Variability. The tube color varies from white to pale-yellowish, some tubes with shallow transverse ridges, semi-circular to circular in cross-section. Body length variable (n=18, r: 3–49, µ=27.6 ±13.8). Thorax of variable length (n=18, r: 0.6–7, µ=4.4 ±1.6) and width (n=18, r: 0.2–4, µ=2.5 ±1.4), with seven chaetigers (only one specimen with six chaetigers). Abdomen with a variable number of chaetigers (n=13, r: 38–110, µ=79.3 ±25.6). Radioles with or without bands of color. Some specimens with uniformly colored (not maculated) opercular peduncle of variable length, including the opercular plates (n=18, r: 1–18, µ=8.4 ±4.1) and width of basal plate (n=16, r: 1.2–4, µ=2.4 ±0.8). Wings of opercular peduncle with smooth or wavy edge ( Fig. 5B View FIGURE 5 ). Peduncle inserted into right (n=10) or left lobe (n=4). Operculum variable in length (n=18, r: 0.3–6, µ=2.9 ±1.5) and number of plates (n=18, r: 2–6, µ=4 ±1). Operculum with shallow dish-shaped plates ( Figs 1A View FIGURE 1 , 5A–B View FIGURE 5 ). Spirobranchus - type chaetae with wide proximal boss (twice wider than distal blade; Fig. 6A–C View FIGURE 6 ), except in one specimen where the proximal boss is as wide as the distal blade ( Fig. 6C View FIGURE 6 ).

Habitat. Littoral to sublittoral (80 m). On mangrove roots, mollusk shells, corals, sponges, under rocks, wood debris and on a pier covered by Millepora spp. (ten Hove & San Martín 1995; Bastida-Zavala & Salazar-Vallejo 2000). Only one record as fouling fauna in Florida ( Bastida-Zavala et al. 2017).

Distribution. Wider Caribbean, from Florida to southern Brazil ( Fig. 9 View FIGURE 9 ); in the Gulf of Mexico P. stellatus is only recorded from Alacranes Reefs ( Ehlers 1887; Zibrowius 1970; ten Hove & San Martín 1995; Bastida-Zavala & Salazar-Vallejo 2000) and in two reefs from Veracruz (this study).

Remarks. Pomatostegus stellatus was described by Abildgaard (1789); however, type specimens were not established (nor found in the collections of the Zoological Museum Copenhagen by Mary Petersen in 2000). Many authors supposed P. stellatus to have a wide, even circumtropical distribution ( Zibrowius 1970, 1973; Imajima 1977, 1982; Imajima & ten Hove 1984, 1986; Nishi 1995; Bastida-Zavala 2008); however, Bastida-Zavala & Salazar-Vallejo (2000) suggested that the geographical distribution of P. stellatus was limited to the Tropical Western Atlantic only. Ten Hove & Kupriyanova (2009) suggested that the genus Pomatostegus contained three species with limited distributions: Pomatostegus kroyeri Mörch, 1863 , from the Tropical Eastern Pacific region; P. stellatus from the Tropical Western Atlantic and P. actinoceras Mörch, 1863 , with a distribution in the Indian and Western Pacific oceans ( Kupriyanova et al. 2015). The fact that the genus only extremely rarely has been recorded as part of the fouling fauna (e.g., Cai et al. 2004; Bastida-Zavala et al. 2017) might illustrate their limited distributional powers. Only one specimen of P. stellatus has been recorded as part of the fouling fauna from Biscayne Bay, Florida, after the revision of hundreds fouling plates deployed in marinas with salinities averaging 20‰, by 14 consecutive years ( Bastida-Zavala et al. 2017: 5–6, 41). Therefore, it probably would be impossible for the Caribbean species to cross the Panamá Canal ( Bastida-Zavala et al. 2016).

V

Royal British Columbia Museum - Herbarium

ECOSUR

El Colegio de la Frontera Sur (Mexico)

UMML

University of Miami Marine Laboratory

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Sabellida

Family

Serpulidae

Genus

Pomatostegus

Loc

Pomatostegus stellatus ( Abildgaard, 1789 )

Sánchez-Ovando, J. Pablo & Bastida-Zavala, J. Rolando 2021
2021
Loc

Pomatostegus stellatus tetrapoma

Bastida-Zavala, J. R. & Salazar-Vallejo, S. I. 2000: 816
Morch, O. A. L. 1863: 397
1863
Loc

Pomatostegus stellatus fruticosa

Bastida-Zavala, J. R. & Salazar-Vallejo, S. I. 2000: 816
Rullier, F. 1974: 72
Morch, O. A. L. 1863: 397
1863
Loc

Pomatostegus macrosoma

Bastida-Zavala, J. R. & Salazar-Vallejo, S. I. 2000: 816
Morch, O. A. L. 1863: 398
Schmarda, L. K. 1861: 31
1861
Loc

Pomatostegus brachysoma

Bastida-Zavala, J. R. & Salazar-Vallejo, S. I. 2000: 816
Morch, O. A. L. 1863: 400
Schmarda, L. K. 1861: 32
1861
Loc

Terebella stellata

Abildgaard, P. C. 1789: 144
1789
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