embryonic stage 13 [FBdv_00005328]

Stage 13 begins at the completion of germ-band retraction, when the prospective anal plate occupy the posterior pole. The dorsal ridge becomes apparent externally; the clypeolabrum retracts, leaving a triangular shaped gap at the anterior pole; the labium moves to the ventral midline. This stage ends when head involution begins. Duration at 25 degrees C: Approximately 60 minutes (560-620 minutes after egg laying).
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embryonic stage 13

ID: FBdv_00005328

Stage

Stage 13 begins at the completion of germ-band retraction, when the prospective anal plate occupy the posterior pole. The dorsal ridge becomes apparent externally; the clypeolabrum retracts, leaving a triangular shaped gap at the anterior pole; the labium moves to the ventral midline. This stage ends when head involution begins. Duration at 25 degrees C: Approximately 60 minutes (560-620 minutes after egg laying).

Temporal ordering number - 340.

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
contracted germ band stage exact synonym