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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060 EISSN: 1678-8060
Vol. 94, No. 5, 1999, pp. 635-640
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Bioline Code: oc99117
Full paper language: English
Document type: Research Article
Document available free of charge
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Memórias do Instituto Oswaldo Cruz, Vol. 94, No. 5, 1999, pp. 635-640
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Studies on Procamallanus (Spirocamallanus) pereirai Annereaux, 1946 (Nematoda: Camallanidae), with New Host Records and New Morphological Data on the Larval Stages
Cláudia Portes Santos; Melissa Querido Cárdenas & Herman Lent
Abstract
Larval stages and adults of Procamallanus (Spirocamallanus) pereirai
Annereaux, 1946 are described from naturally infected Paralonchurus brasiliensis
(Steindachner) (Sciaenidae) from the coast of the State of Rio de Janeiro, Brazil. The
translucent first-stage larvae have a denticulate process at the anterior end, no buccal capsule
or esophagus undifferentiated into anterior muscular and posterior glandular parts and an
elongate tail; third-stage larvae have a tail with three terminal projections, a buccal capsule
divided into an anterior portion with 12-20 ridges running to the left and a posterior smooth
portion, and an esophagus with muscular and glandular regions. Fourth-stage larvae exhibit a
buccal capsule lacking a distinct basal ring with ridges running to the right and a tail with
two terminal processes, as in adults. New host records are reported and their role in its
life-cycle are discussed.
Keywords
Procamallanus (Spirocamallanus) pereirai - Nematoda - Camallanidae - larval stages - life-cycle -fish - Brazil
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