- bursa swollen
The adult male tail, including the lateral fan and rays, appears bloated or distended.
- bursa elongated
The length of the adult male tail, including the lateral fan and rays, is extended compared to control.
- bursa morphology variant
Any variation in the form, structure or composition of the adult male tail including the lateral fan and rays compared to control.
- male sex muscle development variant
Variations in the progression of the muscles of the adult male reproductive system over time form their initial formation to their mature structure compared to control.
- male fan morphology variant
Any variation in the form, structure or composition of the flattened structure extending laterally at the extreme tip of the adult male consisting of nine pairs of sensory rays that lie within a web-like cuticle compared to control.
- male sex muscle morphology variant
Any variation in the form, structure or composition of the muscles of the adult male reproductive system compared to control. In C. elegans males, the M myoblast gives rise to a much larger set of specialized muscles, compared to hermaphrodites, which differentiate within the tail region (Wormatlas).
- over retracted male tail
Adult males exhibit a truncated tail, often without a fan or have well-developed fans but squarish, truncated back ends compared to control. In C. elegans this is due to precocious male tail tip retraction beginning in the early L3 stage (normally retraction begins in the L4 stage). Condition can be lethal if the function of the anus is affected.
- pointed tail tip male
Male tails fail to undergo tip retraction thereby forming a 'leptoderan' or 'pointed' adult tail.
- masculinized
Animals that are not ordinarily male, exhibit male-specific attributes. In C. elegans, XX animals exhibit male-specific attributes.