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Caseyidae
Caseyidae is a family of millipedes in the order Chordeumatida. Adult millipedes in this family have 30 segments (counting the collum as the first segment and the telson as the last). There are about 7 genera and at least 40 described species in Caseyidae. Genera * ''Caseya'' Cook & Collins, 1895 * ''Metopiona'' Gardner & Shelley, 1989 * ''Ochrogramma'' Gardner & Shelley, 1989 * ''Opiona'' Chamberlin, 1951 * ''Speoseya'' Causey, 1954 * ''Underwoodia (millipede), Underwoodia'' Cook & Collins, 1895 * ''Vasingtona'' Chamberlin, 1941 References Further reading * * * * Chordeumatida Millipede families {{myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chordeumatida
Chordeumatida (from the Greek word for "sausage") is a large order of millipedes containing some 1200 species with a nearly worldwide distribution. Also known as "sausage millipedes," they possess around 30 body segments behind the head (including the telson) as adults and reach about in length. Description Chordeumatidans are relatively short-bodied, with only 26 to 32 body segments (including the telson) behind the head. They range in length from . A key feature is the presence of 6 large bristles (setae) on the dorsal surface of each body segment. The first segment ( collum) is relatively narrow, giving the appearance of a distinct "neck" in many species. The body tapers towards the rear, and the rearmost tip (telson) contains silk-producing organs (spinnerets). A dorsal groove runs down the length of the body, and some species possess paranota, lateral extensions of the exoskeleton. Paranota are also found in some other millipedes, notably Polydesmida, from which Chordeumat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
