Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean
In this paper, we describe two new species of Syndesmis living in Pseudechinus magellanicus in the Southwest Atlantic Ocean. The new species have a long stylet in the male reproductive system, which is different from that of the known species of the genus. Specimens of Syndesmis selknami n. sp. have...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-08-01
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| Series: | International Journal for Parasitology: Parasites and Wildlife |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213224416300761 |
| _version_ | 1819052902857048064 |
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| author | Francisco Brusa Martin M. Montes Paula Marcotegui Sergio R. Martorelli |
| author_facet | Francisco Brusa Martin M. Montes Paula Marcotegui Sergio R. Martorelli |
| author_sort | Francisco Brusa |
| collection | DOAJ |
| description | In this paper, we describe two new species of Syndesmis living in Pseudechinus magellanicus in the Southwest Atlantic Ocean. The new species have a long stylet in the male reproductive system, which is different from that of the known species of the genus. Specimens of Syndesmis selknami n. sp. have a ∼220-μm-long stylet (∼1/3 of the body length, 0.69 mm). This ratio is unique because only four species (Syndesmis echinorum, Syndesmis rubida, Syndesmis inconspicua and Syndesmis echiniacuti) have similar stylet lengths but are larger in body sizes (3–5 mm). Specimens of Syndesmis aonikenki n. sp. have a ∼148-μm-long stylet (∼1/10 of the body length, 1.11 mm). Syndesmis pallida has a similar ratio but the uterus is located posteriorly, and the filament glands are very small and located in the posterior region of the body. These are the first flatworms reported parasitizing Pseudechinus magellanicus. |
| first_indexed | 2024-12-21T12:27:13Z |
| format | Article |
| id | doaj.art-499ff3f5bf614c409195f745b4d6afbb |
| institution | Directory Open Access Journal |
| issn | 2213-2244 |
| language | English |
| last_indexed | 2024-12-21T12:27:13Z |
| publishDate | 2017-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal for Parasitology: Parasites and Wildlife |
| spelling | doaj.art-499ff3f5bf614c409195f745b4d6afbb2022-12-21T19:04:08ZengElsevierInternational Journal for Parasitology: Parasites and Wildlife2213-22442017-08-0162545810.1016/j.ijppaw.2017.03.002Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic OceanFrancisco Brusa0Martin M. Montes1Paula Marcotegui2Sergio R. Martorelli3División Zoología Invertebrados, Facultad de Ciencias Naturales y Museo (UNLP), Boulevard 120 & 61 (B1902CHX) La Plata, Buenos Aires, ArgentinaCentro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT-La Plata-CONICET -UNLP), Boulevard 120 S/N e/61 y 62 (B1902CHX) La Plata, Buenos Aires, ArgentinaCentro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT-La Plata-CONICET -UNLP), Boulevard 120 S/N e/61 y 62 (B1902CHX) La Plata, Buenos Aires, ArgentinaCentro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT-La Plata-CONICET -UNLP), Boulevard 120 S/N e/61 y 62 (B1902CHX) La Plata, Buenos Aires, ArgentinaIn this paper, we describe two new species of Syndesmis living in Pseudechinus magellanicus in the Southwest Atlantic Ocean. The new species have a long stylet in the male reproductive system, which is different from that of the known species of the genus. Specimens of Syndesmis selknami n. sp. have a ∼220-μm-long stylet (∼1/3 of the body length, 0.69 mm). This ratio is unique because only four species (Syndesmis echinorum, Syndesmis rubida, Syndesmis inconspicua and Syndesmis echiniacuti) have similar stylet lengths but are larger in body sizes (3–5 mm). Specimens of Syndesmis aonikenki n. sp. have a ∼148-μm-long stylet (∼1/10 of the body length, 1.11 mm). Syndesmis pallida has a similar ratio but the uterus is located posteriorly, and the filament glands are very small and located in the posterior region of the body. These are the first flatworms reported parasitizing Pseudechinus magellanicus.http://www.sciencedirect.com/science/article/pii/S2213224416300761TurbellariaParasitesSouth Atlantic Ocean |
| spellingShingle | Francisco Brusa Martin M. Montes Paula Marcotegui Sergio R. Martorelli Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean International Journal for Parasitology: Parasites and Wildlife Turbellaria Parasites South Atlantic Ocean |
| title | Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean |
| title_full | Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean |
| title_fullStr | Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean |
| title_full_unstemmed | Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean |
| title_short | Two new species of Syndesmis (Platyhelminthes, Rhabdocoela, Umagillidae) from the sea urchin Pseudechinus magellanicus (Echinodermata, Echinoidea) in the Southwestern Atlantic Ocean |
| title_sort | two new species of syndesmis platyhelminthes rhabdocoela umagillidae from the sea urchin pseudechinus magellanicus echinodermata echinoidea in the southwestern atlantic ocean |
| topic | Turbellaria Parasites South Atlantic Ocean |
| url | http://www.sciencedirect.com/science/article/pii/S2213224416300761 |
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