seta 12-I

Images:

 

Abbreviation:

12-I

Definition:

The seta with setae 10, 11 and 13 on segment I comprising a transverse median or somewhat posterior group of ventral setae (see seta 12-I-VII); interpreted as being absent when only three in the group of setae 10 to 13 are present. 

Explanation:

See seta 10-I-VII for explanation. 

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