- ray
male sensory organ; nine bilateral pairs of finger-like rays (numbered 1 to 9, Left/Right) radiate from the tail and are embedded in a cuticlar fan.
- ray 3
male sensory organ, third from most anterior.
- ray 6
male sensory organ, sixth from most anterior.
- ray 2
male sensory organ, second from most anterior.
- ray 4
male sensory organ, fourth from most anterior.
- ray 7
male sensory organ, seventh from most anterior.
- ray 1
male sensory organ, most anterior.
- ray 5
male sensory organ, fifth from most anterior.
- ray 8
male sensory organ, eighth from most anterior.
- ray 9
male sensory organ, most posterior.