The
ttll-11a promoter drove GFP expression in a distinct and non-overlapping set of ciliated sensory neurons in the head, including the IL1s, outer labial quadrant neurons (OLQs), cephalic neurons (CEPs), and amphids, but not in the extracellular vesicle-releasing neurons EVNs. In the male tail, expression was seen in the hook A type neuron (HOA), ray type A neurons (RnAs), and phasmids but not the HOB and RnB neurons. Expression was also seen in phasmid neurons in the hermaphrodite tail.