FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term haustellum ID (Ontology) FBbt:00004541 (Fly Anatomy)
Definition Cylindrical membranous tube that is the medial part of the proboscis, located between the rostrum and distiproboscis. It contains the labrum and prementum, among other structures.[ FlyBase:FBrf0007734 FlyBase:FBrf0031004 FlyBase:FBrf0033866 ]
Also Known As "mediproboscis"
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       5
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       1
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Relevant FlyBase reports
 Alleles Images Insertions Constructs
 haustellum (all annotations which use CV term, excluding "NOT" statements)       5      3      4      2
Spanning Tree (Parents/Children)
Only view relationship: 
mouthpart
 |__proboscis________________
anatomical structure         |
 |__multicellular structure__|
organism subdivision         |
 |__proboscis________________|
ventral ectoderm derivative  |
 |__proboscis________________|
                             haustellum  62 rec.
                              |__haustellum bristle
                              |__labrum 44 rec.
                              |   |__anterior labial plate 2 rec.
                              |   |__discal sclerite 1 rec.
                              |   |__prestomal cavity 1 rec.
                              |__mentum 3 rec.
                              |__prementum 5 rec.
                              |__proboscis muscle 5 3 rec.
                              |   |__muscle cell of proboscis muscle 5 3 rec.
                              |__proboscis muscle 8 4 rec.
                                  |__muscle cell of proboscis muscle 8 4 rec.
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Is a multicellular structure
Develops from presumptive haustellum
Part of proboscis
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