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of the shell, anterior to the beaks. Despite the name, a lunule is not always in the shape of a crescent moon. Details of the lunule are sometimes an important diagnostic feature in identifying a bivalve shell.
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Website conchs.org, The
Conchological Society of Great Britain and Ireland, Molluscs, Glossary, Advanced glossary of molluscan terminology, Lunule, by Steve Wilkinson, 5 November 2012
34:(from the Latin meaning small moon or crescent moon) is an anatomical feature which is found in the exterior surface of the shells of some species of clams,
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viewed from the top to show the brown-tinted lunule on the right, next to the forward facing beak.
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viewed from the top to show the brown-tinted lunule.
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54:The lunule is a well-defined area near the
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41:, as for example in the family
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20:A left valve of a juvenile
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23:Mercenaria campechiensis
69:Chionopsis intapurpurea
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66:A right valve of
45:and in the genus
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274:Adductor muscles
241:Other hard parts
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356:Bivalve anatomy
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361:Mollusc shells
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284:Gastric shield
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192:Periostracum
182:Pallial line
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48:Ascetoaxinus
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330:Trochophore
325:Pseudofeces
157:Hinge teeth
350:Categories
320:Glochidium
294:Nephridium
267:Soft parts
152:Hinge line
77:References
56:hinge line
279:Ctenidium
212:Sculpture
202:Resilifer
43:Veneridae
315:Abductin
258:Sea silk
207:Resilium
162:Ligament
39:mollusks
335:Veliger
132:anatomy
130:Bivalve
36:bivalve
299:Siphon
289:Mantle
248:Byssus
232:Annuli
172:Lunule
147:Callus
32:lunule
308:Other
253:Pearl
222:Valve
217:Umbo
177:Nacre
139:Shell
227:Beak
167:Lira
51:.
352::
30:A
122:e
115:t
108:v
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