labial papilla

labial papilla

[′lā·bē·əl pə′pil·ə]
(invertebrate zoology)
Any of the sensory bristles around the mouth of many nematodes; they are jointed projections of the cuticle.
References in periodicals archive ?
Labial papilla E with 5 guard seta-like projections, lateral appendage short, not reaching tip of papilla.
Labial papilla E with 3 guard appendages; lateral appendage anteriorly curved, blunt and surpassing tip of papilla.
III sensory organ; chaeta d0 on head absent; maxillary palp without sublobal hair; 1 guard chaeta on labial papilla E, chaetae in distal row of tibiotarsi as 7.
Lateral process (sensu Fjellberg 1999) of outer labial papilla long and pointed, exceeding the apex of the papilla.