Polychaeta note details

Diagnosis
English
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Emended diagnosis by Pettibone (1971: 7): "Prostomium subpyriform, with paired frontal antennae, biarticulate palps, and two pairs of eyes. Tentacular segment achaetous and apodous; four pairs of tentacular cirri with distinct cirrophores. Dorsal cirri at bases of upper notopodial ligules in anterior region. Notopodia with two ligules, upper one gradually increasing in size, becoming greatly enlarged, oval, scalelike, with minute dorsal cirri inserted terminally in middle and posterior parapodia. Neuropodia with setigerous lobe and lower ligule. Ventral cirri short, tapered. Notosetae [homogomph?] spinigers only. Neurosetae homogomph [?] and heterogomph spinigers and heterogomph falcigers with rather long blades. Pharynx with paired jaws, without paragnaths or papillae."
Pettibone, Marian H. (1971). Revision of some species referred to <i>Leptonereis</i>, <i>Nicon</i>, and <i>Laeonereis</i> (Polychaeta: Nereididae). <em>Smithsonian Contributions to Zoology.</em> 104: 1-53. available online at http://si-pddr.si.edu/dspace/handle/10088/5689 Available for editors  PDF available [request]
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2019-10-12 06:55:53Z
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