Diagnostic Features of Millipede Orders: Body Shape, Length, Paranota
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MILLI-PEET, Identification Table 1; Page - 1 - Diagnostic Features of Millipede Orders: body shape, length, paranota Order body-shape dorsal groove paranota rings body length Callipodida round, with longitudinal present never >30 up to 100mm ridges Chordeumatida short, body tapering to present with or without 26-32, most with 30 4 - 25mm end, long legs Glomerida short, flat absent never 12 (may look like 11) 2.5 - 20mm Glomeridesmida flat absent never 22 Julida snake-like absent never >30 10 – 120mm Polyxenida unique through the tufts absent never up to 4mm of setae Platydesmida Flat present always >30, up to 110 up to 60mm Polydesmida in dorsal view forms absent with or without 19-21, most with 20 3 – 130mm without paranota resemble meal-worm larvae Polyzoniida leech-shaped; back absent never >30 domed or arched, belly- side flat Siphoniulida nematode-like absent never >30 less than 7mm Siphonocryptida flat present never >30 up to 10mm Siphonophorida long, worm-like and thin absent never >30, up to 192 up to 36mm Sphaerotheriida large, flat; tank-like absent never 13 up to 95mm and 50mm wide Spirobolida snake-like absent never >30 up to 200mm Spirostreptida snake-like mainly absent, never >30, up to 90 6 - 300mm except in some Cambalidea Stemmiulida laterally compressed, present ? >30 up to 50mm higher than wide Field Museum of Natural History MILLI-PEET, Identification Table 1; Page - 2 - Diagnostic features of millipede orders: head, eyes, other Order Head Eyes/ocelli diagnostic features body Modified Telopods/ Gonopods end/other anterior title? legs in males Callipodida large, mostly longitudinal ridges in most spinnerets L8, L9 reduced round present species Chordeumatida large, mostly 3+3 setal pattern on tergites; spinnerets L8 and L9, L10 round present collum segment often slender, reduced in size in giving the appearance of a Chordeumatidea and ‘neck’ Heterochordeumatidea Glomerida large, few ocelli 2nd tergite large; long, 2 pairs telopods round in a row or slender antennae, articles 3 blind and 6 the longest. Glomeridesmida large, absent ‘cerci' at body end, females 1 pair telopods round with large ovipositors Julida large, present in fresh specimens often with 1st hook- L8 &L9 round fringe of setae around the like posterior end of the body rings Polyxenida large, 1-3 small distinct setal tufts neither round ocelli Platydesmida small, absent long horizontal paranota L9&L10; leg-like triangular Polydesmida large, blind rings lack any signs of sutures L8; L9 normal round walking leg Polyzoniida small, few ocelli collum enlarged, L9&L10; leg-like cone- gnathochilarium undivided shaped Siphoniulida small, absent collum enlarged spinnerets L8; L9 normal beak walking leg Siphonocryptida small, few small L9&L10; leg-like beak ocelli, clearly Field Museum of Natural History visible MILLI-PEET, Identification Table 1; Page - 3 - beak ocelli, clearly visible Siphonophorida small, absent worm-like appearance L9&L10; leg-like long beak Sphaerotheriida large, large, 2nd tergite large, 13th ring 2 pairs telopods round kidney- large antennae short, thick; shaped often with numerous sense eyes with cones many ocelli Spirobolida large, mostly labrum with suture L8 &L9 round present Spirostreptida large, mostly L8 &L9 round present Stemmiulida large, 2 large some can jump spinnerets L8; L9 reduced round ocelli Field Museum of Natural History.