lunule


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Related to lunule: obdormition

lu·nule

(lū'nūl),
1. Synonym(s): lunule of nail
2. A small semilunar structure.

lu·nule

(lūn'yūl)
1. Synonym(s): lunule of nail.
2. A small semilunar structure.
References in periodicals archive ?
Head blackish brown with grayish microtomentum; orbital plates subglossy blackish brown with microtomentum; ocellar triangle darkish brown without microtomentum; lunule strap-shaped, darkish gray with black margin.
Female: ocellar triangle short, with a triangular shape not reaching lunule (Fig.
Shell elongate, equivalved, dorsal and ventral margins subparallel; beaks rise above dorsal margin, tightly incurved, prosogyrate; posterior margin more broadly curved than anterior margin; greatest length below midheight, greatest width anterior of midlength; lunule and escutcheon present; valve surface with numerous broad, comarginal, rounded plicae commonly becoming coarser ventrally; some plicae bifurcate posteriorly; muscle scars and hinge not observed.
The lunule of the host may serve the female ophiuroid as a convenient site for attachment, or the concave shape of the lunule may provide protection from abrasion by the sand.
Orbital plate subshiny black with microtomentum; ocellar triangle brownish without microtomentum; lunule small, yellow with brown margin.
idubedae has a well developed lunule and the cardinal tooth in the right valve, which is much thicker than in M.
Diagnosis: The following combination of features will aid recognition of this genus: body elongate, tapering posteriorly; lunule low, bare; 2 pairs of strong reclinate fronto-orbital setae present; postocellar setae present, convergent; ocellar setae strong, proclinate; 2 postsutural dorsocentral setae present, lacking presutural dorsocentral seta; frons lacking black transverse band across anterior fronto-orbital setae; anepisternal seta absent.
5 x as long as orbital seta, forming 3 irregular transverse rows posterior of lunule.
5x longer than wide, apex evenly-rounded, yellow basally, darkened apically, yellow-grey pruinose, arista with 8 or 9 long dorsal branches and 3 ventral branches in addition to terminal fork; lunule and face silver-grey pruinose, yellow pruinose beneath flagellomere 1; gena narrow, eye height/genal height ratio: 10:1 (HT), silver pruinose throughout; palpus pale brown.
5* as long as wide, apex evenly-rounded (right flagellomere 1 and left arista missing from HT and arista cannot be described); lunule brown, shiny; face uniform silver-grey pruinose throughout, with very narrow silver fascia (adjacent to eye margin), region between this fascia and ptilinal fissure yellow-silver pruinose, facial carina developed as a prominent ridge, extending % length of face, vibrissae strong; occiput grey pruinose; gena narrow, eye height/genal height ratio: 11:1 (HT), silver pruinose, abruptly dirty brown beyond basal angle; palpus thin, black, brown basally, brown microtrichose.
Few of us remember the Lunule Manicure, first popular in the Forties.