Siphonophorida

Siphonophorida (Greek for "tube bearer") is an order of millipedes containing two families and over 100 species.

==Description== Millipedes in the order Siphonophorida are long and worm-like, reaching up to in length and up to 190 body segments. Eyes are absent, and in many species the head is elongated into a long beak, with mandibles highly reduced. The beak may serve in a suctorial function. The body has a dense covering of fine setae. Each body segment consists of a dorsal tergite, two lateral pleurites, and ventral sternite, which are unfused. The male reproductive appendages (gonopods) are simple and leg-like, consisting of the ninth and 10th leg pairs. This lack of specialization has led to Siphonophorida being called a "taxonomist's nightmare", and Jeekel (cited in) jokingly gave the order the "taxonomists' award for least popular group among diplopods".