External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina
The external ultrastructure of Manayunkia speciosa Leidy, 1858 from specimens collected at the lower Uruguay River, South America is described using scanning-electron-microscopy. The branchial crown has a pair of semicircular lateral lobes, a pair of mediodorsal radioles and a pair of medioventral o...
| Autores principales: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2013
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84980 |
| Aporte de: |
| id |
I19-R120-10915-84980 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Zoología External characters Manayunkia speciosa Polychaeta Scanning-electron microscopy Ultramorphology Ultramorfología Caracteres externos microscopía electrónica de barrido |
| spellingShingle |
Zoología External characters Manayunkia speciosa Polychaeta Scanning-electron microscopy Ultramorphology Ultramorfología Caracteres externos microscopía electrónica de barrido Paola, Analía C. Armendáriz, Laura Cecilia Rodrigues Capítulo, Alberto External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina |
| topic_facet |
Zoología External characters Manayunkia speciosa Polychaeta Scanning-electron microscopy Ultramorphology Ultramorfología Caracteres externos microscopía electrónica de barrido |
| description |
The external ultrastructure of Manayunkia speciosa Leidy, 1858 from specimens collected at the lower Uruguay River, South America is described using scanning-electron-microscopy. The branchial crown has a pair of semicircular lateral lobes, a pair of mediodorsal radioles and a pair of medioventral ones. Radiolar surfaces are ciliated. The faecal groove is observed on peristomium middorsally. The anterior margin of the anterior peristomial ring formed a rectangular lobe, with a ciliated band. Chaetal shape exemplifies the basic type of tapering cylinder. Two types of thoracic notochaetae: one wider distally, with a smooth handle, and covered on the surface by denticles, and other are significantly finer at the base and covered by thin structures with a free distal end. These structures were not previously recorded in Fabriciidae. Rows of 3 aligned uncini anteriorly projected are found in the thorax. Each uncinus presents a long manubrium which connects with the crest, extending to a main fang. The teeth of the crest are equal in size. The abdomen present 4 types of neurochaetae: one of small size than the other 3. In the abdomen 10-14 uncini form dense dorsal-transverse-lines. Each uncinus presents a short manubrium. The crest is covered with teeth of similar size. |
| format |
Articulo Articulo |
| author |
Paola, Analía C. Armendáriz, Laura Cecilia Rodrigues Capítulo, Alberto |
| author_facet |
Paola, Analía C. Armendáriz, Laura Cecilia Rodrigues Capítulo, Alberto |
| author_sort |
Paola, Analía C. |
| title |
External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina |
| title_short |
External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina |
| title_full |
External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina |
| title_fullStr |
External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina |
| title_full_unstemmed |
External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina |
| title_sort |
external ultrastructure of manayunkia speciosa (fabriciidae) from uruguay river, argentina |
| publishDate |
2013 |
| url |
http://sedici.unlp.edu.ar/handle/10915/84980 |
| work_keys_str_mv |
AT paolaanaliac externalultrastructureofmanayunkiaspeciosafabriciidaefromuruguayriverargentina AT armendarizlauracecilia externalultrastructureofmanayunkiaspeciosafabriciidaefromuruguayriverargentina AT rodriguescapituloalberto externalultrastructureofmanayunkiaspeciosafabriciidaefromuruguayriverargentina AT paolaanaliac ultraestructuraexternademanayunkiaspeciosafabriciidaedelriouruguayargentina AT armendarizlauracecilia ultraestructuraexternademanayunkiaspeciosafabriciidaedelriouruguayargentina AT rodriguescapituloalberto ultraestructuraexternademanayunkiaspeciosafabriciidaedelriouruguayargentina |
| bdutipo_str |
Repositorios |
| _version_ |
1764820488787329026 |