First record of Spirocamallanus krameri (Nematoda: Camallanidae) in Brazil: Morphological review



Título del documento: First record of Spirocamallanus krameri (Nematoda: Camallanidae) in Brazil: Morphological review
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000435997
ISSN: 0001-3765
Autores: 1
2
3
4
2
Instituciones: 1Universidade Federal do Oeste do Para, Instituto de Ciencias e Tecnologia das Aguas, Santarem, Para. Brasil
2Universidade Federal Rural da Amazonia, Instituto da Saude e Producao Animal, Belem, Para. Brasil
3Universidad Autónoma del Estado de Hidalgo, Centro de Investigaciones Biológicas, Pachuca, Hidalgo. México
4Universidade Federal do Para, Instituto de Ciencias Biologicas, Belem, Para. Brasil
Año:
Volumen: 92
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés This study aimed to describe the occurrence, morphology and prevalence of Spirocamallanus krameri, a parasite of Hoplerythrinus unitaeniatus collected in state of Pará, Brazil. The morphological and morphometric characteristics are consistent with the species S. krameri, by having a hexagonal mouth opening, 16 cephalic papillae and two lateral papillae on the amphids. The buccal capsule is internally different in both sexes, with (11–13) spiral ridges in males and (13–17) spiral ridges in females. The basal ring is well developed, and three teeth are present in males and absent in females. Ten sessile caudal papillae and a pair of phasmidial pores occur in males. The spicules are small, subequal, 81–101 µm in length and the tail is tapered. The vulva in females is postequatorial, the tail is conical with lateral phasmidial pores. Among the species of Spirocamallanus that have short spicules, the general morphology of S. krameri most resembles that of S. inopinatus, but differs from that species, which have two cephalic teeth visible (absent in S. krameri) and specimens of S. inopinatus do not have sexual dimorphism in the buccal capsule of present in S. krameri
Disciplinas: Biología
Palabras clave: Helmintos,
Taxonomía y sistemática,
Nuevos registros,
Parásitos de peces,
Descripción taxonómica,
Spirocamallanus krameri,
Procamallaninae,
Brasil
Keyword: Helminths,
Taxonomy and systematics,
New records,
Fish parasites,
Taxonomic description,
Spirocamallanus krameri,
Procamallaninae,
Brazil
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