Pyrgopolon ctenactis ( Mörch, 1863 )

Bastida-Zavala, J. Rolando, 2008, Serpulids (Annelida: Polychaeta) from the Eastern Pacific, including a brief mention of Hawaiian serpulids, Zootaxa 1722, pp. 1-61 : 42

publication ID

1175­5334

persistent identifier

https://treatment.plazi.org/id/7B4F87BD-953F-FFC3-FF1F-5C94FC517AD9

treatment provided by

Felipe

scientific name

Pyrgopolon ctenactis ( Mörch, 1863 )
status

 

Pyrgopolon ctenactis ( Mörch, 1863) View in CoL

( Figures 10A–D)

Serpula (Sclerostyla) ctenactis Mörch, 1863: 386 View in CoL . Type locality: St. Thomas , Lesser Antilles.

Sclerostyla ctenactis View in CoL .— Bush, 1905: 224 (designation).

Sclerostyla ctenactis View in CoL .— ten Hove, 1973: 6–12, figs. 1–4, 7, 20–31, pls. 1, 3a–b, 3, 7 (revision of the genus).

Pyrgopolon ctenactis View in CoL .— Jäger, 1993: 95 (designation).

Material examined. Many specimens (30+): Baja California ( Mexico), LACM-AHF s.n., empty tube (28º54’55”N, 118º14’W, 3.8 km north of South Bluff, Isla Guadalupe, Velero IV, sta. 1928, shore, rock, kelp, crevices filled with boulders, Dec. 20, 1949). Baja California Sur ( Mexico), UANL 364, 9 spec. (24º47’N, 112º18’W, Cabo San Lazaro, Bahia Magdalena, April, 1988, coll. JALG); USNM 129207, UMAR-Poly 107, several specimens (26º13’N, 112º32’W, Punta San Juanico, 30 m, April 28, 1988, coll. JALG). Guerrero ( Mexico), SV-pc, 2 spec. (16º50’33”N, 99º54’39”W, Punta Manzanillo, Acapulco, Aug. 4, 1988, coll. SISV); UMAR-Poly 108 (16º50’N, 99º54’W, La Quebrada, Acapulco, on Muricanthus and Spondylus , May 25, 2000, coll. SISV, PSS & JRBZ). Oaxaca ( Mexico), UMAR-Poly 92 (15º51’N, 97º04’W, Puerto Escondido, on Spondylus calcifer, VD , 6–10 m, July 4, 2004, coll. SS); UMAR-Poly 93, 2 spec. (15º44’40”N, 96º07’43”W, La Entrega beach, Huatulco, on S. calcifer, Aug., 2004 , coll. MSGM).

Diagnosis. Tube rough and thick-walled, white, with three longitudinal ridges, generally, middle ridge short and flanked by pair of ridges forming two denticulate crests, lacks peristomes or alveoli. Opercular peduncle and operculum completely calcified, enclosed by thin fleshy layer terminating at opening of funnel with number of glandular areas, approximately equal, to the number of marginal spines ( Figs 10A, D). Operculum peduncle with four longitudinal grooves ( Figs 10A, C-D). Operculum ending in deep funnel, pinkish, radial ridges generally well developed, with many irregular teeth ( Figs 10A–D). Thoracic membrane large, extending to 7 th thoracic chaetiger and forming ventral apron. Collar with bundles of few chaetae, mostly hooded (limbate) chaetae, remaining ones with proximal denticulate region, as “ Spirobranchus ” chaetae. Thorax with hooded (limbate) chaetae.

Habitat. Depth: 6 to 30 m; ten Hove (1973) recorded 13– 53 m. On rocks and on the spiny oyster Spondylus calcifer .

Distribution. Amphi-American. Caribbean Sea; Western coast of Baja California Peninsula ( Mexico) to Panama and Colombia (ten Hove 1973).

Taxonomic remarks. The opercula of the specimens revised here are similar to those figured by ten Hove (1973, Figs 25–29); however, some specimens have an opercular peduncle as the shortest ( Fig. 10D) which may represent an example of the regeneration of the operculum.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Sabellida

Family

Serpulidae

Genus

Pyrgopolon

Loc

Pyrgopolon ctenactis ( Mörch, 1863 )

Bastida-Zavala, J. Rolando 2008
2008
Loc

Pyrgopolon ctenactis

Jager, M. 1993: 95
1993
Loc

Sclerostyla ctenactis

Hove, H. A. ten 1973: 6
1973
Loc

Sclerostyla ctenactis

Bush, K. J. 1905: 224
1905
Loc

Serpula (Sclerostyla) ctenactis Mörch, 1863: 386

Morch, O. A. L. 1863: 386
1863
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