Lanicola carus ( Young & Kritzler, 1987 )

Londoño-Mesa, Mario H., 2009, Terebellidae (Polychaeta: Terebellida) from the Grand Caribbean region 2320, Zootaxa 2320 (1), pp. 1-93 : 34-35

Lanicola carus ( Young & Kritzler, 1987)

Paraeupolymnia carus Young & Kritzler, 1987:687–689 , Fig. 1 .— Londoño-Mesa & Carrera-Parra, 2005:25–26 , Figs 7 A-D.— Londoño-Mesa, 2006:24–30 , Figs 1 A-K.

Lanicola carus , Capa & Hutchings, 2006:14.

Neoleprea sp. B , Kritzler, 1984:52.34, Figs 52.39, 52.30a-f.

Type material: Paratypes USNM 98909 (2) North Atlantic Ocean , Caribbean Sea, Belize, Twin Cays (16°49'N, 88°05'W), 9.III.1984, 2.25m .

Additional material: Florida: AMNH 363A (from AMNH 363 as Loimia medusa ) (2) Dry Tortugas, Florida (no more data). USNM 90528 (as Neoleprea sp. B ) (1) Off Crystal River, Florida (28°56'00"N 84°06'W), VI. 1975, MAFLA Sta. III-2317; 29m. Gulf of Mexico: Veracruz State: UANL 5509 (2) Pajaros, 27.VI.2002, Pl.2. UANL 5854 (1) Blanca, 21.V.2002, Pl.3. UANL 5985 (1) Hornos, 14.VII.2002, Pl.2. UANL 5495 (2) Pajaros, 6.V.2001, Pl.2. UANL 6005 (1) Pajaros, 30.V.2003, Pl.2. UANL 6032 (1) Hornos, 30.V.2003, Pl.3. UANL 6058 (1) Pajaros, 30.V.2003, Pl.1. UANL 6060 (7) Hornos, 30.V.2003, Pl.1. UANL 6061 (1) Hornos, 30.V.2003, Pl.2. UANL 6063 (8) Hornos, 30.V.2003, Pl.2. Campeche State: ECOSUR TERE-9 (2) Alacranes Reef, Perez Island, 26.VI.1988. Mexican Caribbean : Quintana Roo State: ECOSUR TERE-9 (1) Southern Chinchorro Bank, R/V “Edwin Link” Sta. 2777 (18°35'51"N 87°20'20.5"W), 21.VIII.1990, about 237m. TERE 9 E2 (1) Xahauyxol, 27.IX.1996, 0.25m. TERE-9 E22 (1) Buenavista (18º30'42"N 87º45'30"W), 27.IX.1996, 1.1m. TERE-9 E25 (4) Buenavista (18º30'42"N 87º45'30"W), 27.IX.1996, 1m. TERE-9 E2A39 (5) Majahual, 30.V.1997, 0.1m. TERE-9 (1) Bajo Pepito, Mujeres Island, VI.1997, on algae. TERE-9 R6 (1) Nizuc Point, Cancun (21º02'11.7"N 86º46'44.2"W), 31.VIII.1997, 2m. TERE-9 R8 (1) Nizuc Point, Cancun (21º02'11.7"N 86º46'44.2"W), 31.VIII.1997, 2m. TERE-9 R7 (2) Nizuc Point, Cancun (21º02'11.7"N 86º46'44.2"W), 1.IX.1997, 2m. TERE-9 B2RB3 (1) Buenavista (18º30'42"N 87º45'30"W), 31.X.1997, 0.25m. TERE-9 (1) Contoy island, 10.VI.1999, 3m, in Ircinia sp. TERE-9 (2) Lighthouse, Contoy Island, 1.III.2001. Panamanian Pacific: UMML 22.1009 (1) Gulf of Panama (8°56'N 79°34'W), R/V “Pillsbury” Sta. 568; 13.V.1967; 0m. Panamanian Caribbean : ECOSUR TERE-9 (19) Puerto Sherman, Colon, 2.VI.2002. TERE-9 (1) Culebra Point, Balboa, 30.V.2002. TERE-9 (1) Puerto Sherman, Colon, 2.VI.2002. TERE-9 (11) Club Nautico, Colon, 3.VI.2002. Antilles: ZMA V.Pol. 5313 (1) Puerto Santo, near Carupano, Venezuela, 12.VI.1936; sandy debris; lower zone. ZMA V.Pol. 5312 (5) Tortuga SW coast, Sta. 1211A; 1.VIII.1936; sandy reef with Acropora cervicornis , 3– 4m. ZMA V.Pol. 5299 (1) Chumbu Point, Piscadera Baai, Curaçao, Sta. 1473; 13.XII.1963; Rhizophora , on rocky shore, many oysters, Styela and Microcosmus , 0– 1m. ZMA V.Pol. 5303 (1) Hog Island near Point Salines, Grenada, Sta. 1550; 8.VIII.1967; Rhizophora , in mud, 0–0.5m. ZMA V.Pol. 5307 (1) S coast, near Hog Island, Grenada, Sta. 1551A; 8.VII.1967; Thalassia in muddy sand near Rhizophora , 0.5– 1m. ZMA V.Pol. 5300 (1) Fuik Baai, E corner, Curaçao, Sta. 1618; 28.X.1967; Rhizophora , mud, 0–0.5m. ZMA V.Pol. 5301 (4) Brakke Put Ariba, Spaanse Water, Curaçao, Sta. 1628; 1.XI.1968; sandy, with algae, 5m. ZMA V.Pol. 5302 (2) SW of Landhius Santa Barbara, Inner Bay, Spaanse Water, Curaçao, Sta. 1633; 1.XI.1968; muddy, 3m. ZMA V.Pol. 5295 (1) Arisco Pam, Bonaire, 1A, Sta. 75-60; 22.IX.1975. AMNH 1265 (1) Milford Bay, Tobago 28.III.1918. LEB-Te (3) Guacarapo, Venezuela, 22.V.1999.

Diagnosis: Paratype complete, 85 segments, 24mm long; thorax 7.2mm long, 3.0mm wide. Eyespots small, dark, placed mid-laterally on the tentacular membrane. Branchiae branched, decreasing in length posteriorly. Fifteen ventral shields. Thorax dorsally smooth. Pairs of nephridial papillae placed at base of second pair of branchiae, and postero-dorsally to notopodia. Notochaetae bilimbate. Thoracic uncini MF:1:3–5; abdominal uncini MF:2–3:4–6; pygidium with 10 small anal papillae.

Staining pattern: Swollen and enlarged segment 1 ventrally, lateral lappets and ventral shields stain deeply. The remaining structures not stained.

Variation: Total length is 8–30mm, thoracic length is 4–8mm and thoracic width 0.5–1.2mm. This variation in length and width is due to the varying ages of the material examined. Smaller specimens have poorly developed branchiae and few short tentacles, representing juveniles or pre-adult stages. Other variations are presented in terms of dark coloration in some specimens; presence or absence of dark bands in tentacles; presence or absence of eyespots. They are variable and considered as intra-specific polymorphisms in other terebellid species.

Discussion: A complete description of the species can be found in Londoño-Mesa (2006). This species is one of the most common terebellids found in the Caribbean region. Some specimens reported by Londoño- Mesa (2006) on the Pacific side of Panama, near the Canal, have been referred to L. guillermoi Capa & Hutchings, 2006. Nevertheless, some specimens from that locality resemble L. carus , suggesting that the species could be present also in the Pacific. This could be explained by the fact that the species was possibly introduced in its early developmental stages, by ships travelling through the Canal of Panama.

Type locality: Twin Cays , Belize, Caribbean Sea .

Distribution: Grand Caribbean region: Florida, Gulf of Mexico, Mexican Caribbean , Belize, Colon ( Panama Caribbean ), Venezuela, and Lesser Antilles ( Bonaire, Curaçao, Grenada, Tortuga), and Balboa (Gulf of Panama, Pacific). In shallow water (0–5m); rarely in deep-water (237m).

Figures

FIGURE 1. Uncini types: A. Avicular. B. Pecinate. MF: Main Fang. Sr: Subrostrum. USr: Upper Subrostrum. LSr: Lower Subrostrum. SrP: Subrostral Process. SrA: Subrostral Appendix. AP: Anterior Process. AF: Anterior Filament. Bs: Base. PP: Posterior Process. PF: Posterior Filament. Cp: Capitium. Oc: Occipitium. UOc: Upper Occipitium. LOc: Lower Occipitium.

FIGURE 7. Eupolymnia crassicornis: A. Anterior end. B. Chaeta. C. Uncinus (improved from Schmarda, 1861). Eupolymnia magnifica (Syntype USNM 4799): D. Anterior thoracic region in lateral view. E. Anterior end in lateral view. F. First seven parapodia in lateral view. G. Branchiae: longer (right) from segment 2, shorter (left) from segment 4. H. Bilimbate notochaetae from segment 10. I. Uncinus from segment 5. J. Uncinus from segment 11. K. Uncinus from segment 25. Eupolymnia nebulosa (NHM 1910.2.1): L. Bilimbate notochaeta from segment 11. M. Uncinus from segment 5. N. Uncinus from segment 11. O. Uncinus from segment 25. Scale bars: A,B,C: No original scale; D: 6mm; E,F: 3.6mm; G: 6mm; H,L: 0.9mm; I-K,M-O: 0.08mm.