Abstract
Previous studies have dealt recently with syllid polychaetes in soft sediments from Acapulco Bay (Southern Mexican Pacific) with new species and new records of the subfamily Syllinae published, but the remaining subfamilies found in the area had not been included. This study deals with syllids belonging to those subfamilies: Eusyllinae, Exogoninae and Autolytinae, since the Anoplosyllinae were not found. Three species are described as new: Odontosyllis septemdentata n. sp., characterized by having bidentate falcigers and a trepan with 7 teeth alternating in size; Sphaerosyllis tetralobata n. sp., which is characterized by having unidentate compound chaetae and segments divided in four annuli, and Prosphaerosyllis sotoi n. sp., characterized by having compound chaetae with short and hooked unidentate blades, and by being the only species of the genus that lacks dorsal cirri in the second parapodia. Additionally, Westheidesyllis gesae (Perkins 1981) is newly recorded for the Pacific Ocean, while Odontosyllis fulgurans (Audouin & Milne Edwards 1834), Erinaceusyllis bidentata (Hartmann-Schröder 1974) and Myrianida dentalia (Imajima 1966) are recorded for the first time from the Mexican Pacific coasts.
References
Audouin, J.V. & Milne Edwards, H. (1834) Recherches pour servir à l´histoire naturelle du littoral de la France, ou Recueil de mémoires sur l´anatomie, la physiologie, la classification et les mœurs des animaux de nos côtes; ouvrage accompagné de planches faites d´après nature. Vol. 2. Annélides Part 1. Crochart, Paris, 290 pp.
Ben-Eliahu, N.M. (1977) Polychaete cryptofauna from rims of similar intertidal vermetid reefs on the Mediterranean coast of Israel and in the Gulf of Eilat. Exogoninae and Autolytinae. Israel Journal of Zoology, 26, 59–99.
Capa, M. (2003) Estudio de la criptofauna coralina y de los anélidos poliquetos (Annelida: Polychaeta) de sustratos duros del Parque Nacional de Coiba, Panamá. Universidad Autónoma de Madrid, España, 382 pp.
Capa, M., San Martín, G. & López, E. (2000) Autolytinae, Eusyllinae and Exogoninae (Syllidae: Polychaeta) del Parque Nacional de Coiba, Panamá. Revista de Biología Tropical, 49 (2), 621–628.
Claparède, E. (1863) Beobachtungen über Anatomie und Entwicklungsgeschichte wirbelloser Thiere an der Küste von Normandieangestellt. Wilhelm Engelmann, Leipzig, 120 pp.
http://dx.doi.org/10.5962/bhl.title.10030de Matos, J.M., San Martín, G. & Veronesi, M. (2004) On some exogonines (Polychaeta, Syllidae, Exogoninae) from the northern coast of the State of Sâo Paulo, southeastern Brazil. Results of BIOTA/FAPESP/ Bentos Marinho Project. Meiofauna Marina, 13, 45–47.
Ding, Z. & Westheide, W. (1997) New records and distribution of tidal and subtidal syllid species (Syllidae) from the Chinese coast. Bulletin of Marine Science, 60 (2), 277–292.
Fukuda, M.V. & Nogueira, J.M.M. (2006) A new species of Odontosyllis Claparède, 1863 (Polychaeta: Syllidae; Eusyllinae), and description of Brazilian material of Odontosyllis cf. fulgurans (Audouin and Milne Edwards, 1834). Zoological Studies, 45 (2), 223–233.
Fukuda, M.V., Nogueira, J.M.M., Paresque, K. & San Martín, G. (2013) Species of Odontosyllis Claparède 1863 (Annelida: Polychaeta: Syllidae) occurring along the Brazilian coast. Zootaxa, 3609 (2), 142–162.
http://dx.doi.org/10.11646/zootaxa.3609.2.2Gardiner, S.L. (1976) Errant Polychaete Annelids from North Carolina. Journal of the Elisha Mitchell Scientific Society, 91 (3), 77–220.
Góngora-Garza, G. & de León-González, J.A. (1993) Dos nuevos sílidos (Polychaeta: Syllidae) y nuevos registros para México, con una clave a las especies de sílidos del Pacífico Mexicano. Cahiers de Biologie Marine, 34, 17–28.
Grube, A.E. (1850) Die Familien der Anneliden. Archiv für Naturgeschichte, 16 (1), 249–364.
Hartmann-Schröder, G. (1992) Die Polychaeten der Amsterdam-Expedition nach Inseln Ascension (Zentral-Atlantik). Bijdragen tot de Dierkunde, 61 (4), 219–235.
Hartmann-Schröder, G. (1959) Zur Okologie der Polychaeten des Mangrove-Estero-Gebietes von El Salvador. Beitraege Zur Neotropischen Fauna, 1 (2), 69–183.
http://dx.doi.org/10.1080/01650525909380612Hartmann-Schröder, G. (1962) Zur Kenntnis des Eulitorals der chilenischen Pazifikküste und der argenstinischen Küste Südpatagoniens unter besonderer Berücksichtigung der Polychaeten und Ostracoden. Die Polychaeten der Eulitorals. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 60, 57–169.
Hartmann-Schröder, G. (1974) Zur Kenntnis des Eulitorals der afrikanischen Westküste zwischen Angola und Kap der Guten Hoffnung und der afrikanischen Ostküstevon Südafrica und Mocambique unter besonder Berücksichtitung der Polychaeten und Ostracoden. Die Polychaeten des Untersuchungebietes. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 69, 95–228.
Hartmann-Schröder, G. (1986) Die Polychaeten der antiborealen Südkueste Australiens (zwischen Wallaroo imWesten und Port MacDonnell im Osten. In: Hartmann-Schröder, G. & Hartmann, G. (Eds.), Zur Kenntnis des Eulitorals der australischen Küsten unter besonderer Berücksichtigung der Polychaeten und Ostracoden. Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut, 83, pp. 31–70.
Imajima, M (1966a) The Syllidae (Polychaetous Annelids) from Japan III. Eusyllinae. Publications of the Seto Marine Biological Laboratory, 14, 85–116.
Imajima, M. (1966b) The Syllidae (Polychaetous Annelids) from Japan II Autolytinae. Publications of the Seto Marine Biological Laboratory, 14, 27–83.
Imajima, M. & Hartman, O. (1964) The Polychaetous Annelids of Japan. Allan Hancock Foundation Publications. Occasional Papers, 26, 1–452.
Langerhans, P. (1879) Die Würmfauna von Madeira. Zeitschrift für Wissenschaftliche Zoologie, 33, 513–592.
Malaquin, A. (1893) Recherches sur les syllidiens. Mémoires de la Société des Sciences, de l´Agriculture et des Arts de Lille, 4éme séri, 18, 1–477.
Milne Edwards, H. (1845) Observations sur le développement des annélides. Annales des Sciences Naturelles, Paris. Série 3, Zoologie, 3, 145–182.
Moore, J.P. (1909) The polychaetous annelids dredged by the Albatross off the coast of California in 1904. I. Syllidae, Sphaerodoridae, Hesionidae, Phyllodocidae. Proceedings of the Academy of Natural Sciences of Philadelphia, 61, 321–351.
Nogueira, J.M., San Martín, G. & Amaral, A.C.Z. (2001) Description of five new species of Exogoninae Rioja, 1925 (Polychaeta: Syllidae) associated with the stony coral Mussismilia hispida (Verrill 1868) in Sao Paulo State, Brazil. Journal of Natural History, 35 (12), 1773–1794.
http://dx.doi.org/10.1080/00222930152667096Nygren, A. (2004) Revision of Autolytinae (Syllinae: Polychaeta). Zootaxa, 680, 1–314.
Perkins, T.H. (1981) Syllidae (Polychaeta), principally from Florida, with descriptions of a new genus and twenty-one new species. Proceedings of the Biological Society of Washington, 93 (4), 1080–1172.
Pettibone, M.H. (1963) Marine Polychaete worms of the New England region, 1. Aphroditidae to Trochochaetidae. Bulletin of the United States National Museum, 227, 1–356.
http://dx.doi.org/10.5479/si.03629236.227.1Salcedo, D.L., San Martín, G. & Solís-Weiss, V. (2011) Two new species of Syllidae (Annelida: Polychaeta) from the Southern Mexican Pacific. Zootaxa, 2800, 41–52.
Salcedo, D.L., San Martín, G. & Solís-Weiss, V. (2012) The genus Syllis (Polychaeta: Syllidae: Syllinae) in the Southern Mexican Pacific with the description of two new species and three new records. Zootaxa, 3263, 47–62.
Salcedo, D.L., Hernández-Alcántara, P. & Solís-Weiss, V. (2015) Description of two new species of Pisione (Polychaeta: Sigalionidae) and first record of Pisione galapagoensis Westheide in the Southern Mexican Pacific. Zootaxa, 4039 (2), 373–390.
http://dx.doi.org/10.11646/zootaxa.4039.2.10San Martín, G. (1984) Estudio biogeográfico, faunístico y sistemático de los Poliquetos de la familia Sílidos (Syllidae: Polychaeta) en Baleares. Ediciones de la Universidad Complutense de Madrid, 187, 1–529.
San Martín, G. (1991) Sphaerosyllis and Parapionosyllis (Polychaeta: Syllidae) from Cuba and Florida. Ophelia Supplement, 5, 231–238.
San Martín, G. (2003) Annelida Polychaeta II: Syllidae. Museo Nacional de Ciencias Naturales, CSIC, Madrid, 554 pp.
San Martín, G. (2005) Exogoninae (Polychaeta: Syllidae) from Australia with the description of a new genus and twenty-two new species. Records of the Australian Museum, 37, 39–152.
http://dx.doi.org/10.3853/j.0067-1975.57.2005.1438San Martín, G., López, E. & Aguado, M.T. (2009) Revision of the genus Pionosyllis (Polychaeta: Syllidae: Eusyllinae), with cladistics analysis, and the description of five new genera and new species. Journal of the Marine Biological Association of the United Kingdom, 89, 1455–1498.
http://dx.doi.org/10.1017/S0025315409003099Schmarda, L.K. (1861) Neue Turbellarian, Rotatorien und Anneliden beobachtey und gesammelt auf einer Reise und die Erde 1863 bis 1857. Erster Band (zweite halfte). Wilhelm Engelmann. Leipzig, 164 pp.
Uebelacker, J.M. (1984) Family Syllidae Grube, 1850. In: Uebelacker, J.M. & Johnson, P.G. (Eds.), Taxonomic guide to the polychaetes of the northern Gulf of Mexico. Vol. IV. Barry A. Vittor and Associates, Mobile, pp. 1–151.
Westheide, W. (1974) Interstitielle Fauna von Galápagos XI. Pisionidae, Hesionidae, Pilargidae, Syllidae (Polychaeta). Mikrofauna des Meeresbodens, 44, 1–146.