A group of sensory organs at the posterior end of some male nematodes (excluding “phasmids” which are situated on the lateral aspects of the tip of the tail); the number and arrangement of caudal papillae are used for identification of nematodes such as in Ascarididae and Thelaziidae.... caudal papillae
A group of sensory organs around the mouth opening (excluding amphids which are situated on the lateral aspects of the mouth); the number and arrangement of the cephalic papillae are significant for the classification of nematodes.... cephalic papillae
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