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A New Nematode Species (Seuratoidea, Cucullanidae) Parasitizing Parauchenipterus striatulus (Steindachner, 1876) (Pisces, Auchenipteridae) in Brazil
Narcisa IB Moreira; Gilberto N Rocha & Hélio MA Costa
Abstract
A new species of a cucullanid nematode is described, illustrated and compared with Cucullanus brevispiculus Moravec, Kohn & Fernandes, 1993 and C. rhamphichthydis Moravec, Kohn & Fernandes, 1997, two species previously reported as parasitizing freshwater fish in South America. The new species is characterized mainly by markedly short spicules, deirids and excretory pore situated posterior to the oesophago-intestinal junction, presence of strongly sclerotized plates in the oesophastome and oesophagus divided into two distinct portions.
Keywords
nematodes - Cucullanus - new species - Parauchenipterus - freshwater fish - South America - Brazil
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