Cleidogonidae is a family of millipedes in the order

Chordeumatida Chordeumatida (from the Greek word for "sausage") is a large order of millipedes containing more than 1,400 species. Also known as sausage millipedes, they are found nearly worldwide. Chordeumatida is the largest order in the superorder Nemato ...

. Adult millipedes in this family have 28, 29, or 30 segments (counting the collum as the first segment and the

telson The telson () is the hindmost division of the body of an arthropod. Depending on the definition, the telson is either considered to be the final segment (biology), segment of the arthropod body, or an additional division that is not a true segm ...

as the last). This family includes the genus ''Tianella'', notable for featuring adult millipedes with 29 segments, a number not found in the adults of any other chordeumatidan species. Adults in most ''Tianella'' species have 29 segments, but adults in two (''T. daamsae'' and ''T. mananga'') have only 28 segments. In the ''Tianella'' species with 29 segments, adult females have 48 pairs of legs, as one would expect in adult female chordeumatidans with one segment fewer than the 30 usually found in this order. There are seven genera and at least 140 described species in Cleidogonidae.

Genera

* '' Cabraca'' Shear, 1982 * '' Cleidogona'' Cook, 1895 * '' Dybasia'' Loomis, 1964 * '' Pseudotremia'' Cope, 1869 * '' Solaenogona'' Hoffman, 1950 * '' Tianella'' Attems, 1904 * '' Tiganogona'' Chamberlin, 1928

Genera

References

Further reading