A new species of the genus Paractinolaimus, P. magistris sp. n., is described and illustrated. It is characterized by having body 1.9-2.3 mm long; low, truncate lip region; four massive, acute onchia; stoma walls covered with sparse tiny denticles; odontostyle 29-35 μm long; well developed, didelphic-amphidelphic female reproductive apparatus; vulva a longitudinal oval pore; absence of advulval papillae; female tail about as long as anal body diameter (c’=1.0- 1.1), conoid, curved ventrad, and with acute terminus; mail tail convex conoid with blunt terminus; and 14-15 nearly contiguous ventromedian supplements. The new species, among the numerous species of Paractinolaimus described so far, has a unique female tail shape: instead of the usual convex conoid initial part followed by a more or less elongated slender part, it shows a quite short, Eudorylaimus-like conoid tail. A compendium of morphometrics of the nominal species of the genus is also provided.

Description of a new species of Paractinolaimus Meyl, 1957 (Dorylaimida: Nematoda) and a compendium of all the nominal species of the genus

CLAUSI, MIRELLA;
2013

Abstract

A new species of the genus Paractinolaimus, P. magistris sp. n., is described and illustrated. It is characterized by having body 1.9-2.3 mm long; low, truncate lip region; four massive, acute onchia; stoma walls covered with sparse tiny denticles; odontostyle 29-35 μm long; well developed, didelphic-amphidelphic female reproductive apparatus; vulva a longitudinal oval pore; absence of advulval papillae; female tail about as long as anal body diameter (c’=1.0- 1.1), conoid, curved ventrad, and with acute terminus; mail tail convex conoid with blunt terminus; and 14-15 nearly contiguous ventromedian supplements. The new species, among the numerous species of Paractinolaimus described so far, has a unique female tail shape: instead of the usual convex conoid initial part followed by a more or less elongated slender part, it shows a quite short, Eudorylaimus-like conoid tail. A compendium of morphometrics of the nominal species of the genus is also provided.
Actinolaimus; compendium; new species
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/40603
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