Difference Between Centipedes and Millipedes (Chilopoda Vs Diplopoda)

.Centipedes and millipedes are coming under the sub-phylum Myriapoda of the phylum Arthropoda.

Similarities of centipedes and millipedes

Ø  Both coming under the sub-phylum Myriapoda

Ø  All are terrestrial arthropods

Ø  Body divided into head and trunk

Ø  Bears many legs

Ø  Single pair of antennae

Ø  Sensory Tömösváry organs present below the antennae

Difference between Centipedes and Millipedes

Ø  Eyes simple

Ø  Mouth part lies on the underside of head

Ø  Upper lip of mouth with epistome and labrum

Ø  Lower lip of mouth with a pair of maxillae

Ø  A pair of mandibles present

Ø  Mandibles lie inside the mouth

Ø  Respiration through trachea

Ø  Breath through spiracles that connect tracheal system similar to insects

Ø  Excretion through malpighian tubules

Difference between Centipedes and Millipedes

1.Common nameHundred legged wormsThousand legged worms
3.MovementFast movingSlow moving
4.FeedingCarnivorous prdatorsDetritivorous feeders
5.PoisonousPoisonousUsually non poisonous
6.MaxillipedsMaxillipeds present formed to prehensors (poison claws) to attack prays. Prehensors are modified legs of first body segmentMaxillipeds absent, Prehensors absent
7.First MaxillaeFirst maxillae presentFirst maxillae lost
9.MouthTrignathic - with mandibles, first maxillae and second maxillaeDignathic with mandibles and gnathochilarium
10.Trunk segmentsMono-segmentic (each segment with single part)Diplosegmentic (each segment formed by the fusion of two segments during development)
11.Legs per segmentEach body segment bear single pair of legsEach body segment bears two pairs of legs
12.Leg positionLegs articulated laterally along the bodyLegs articulated mid-ventrally with the body
13.Visibility of legsLegs spread out from the bodyLegs in line with the body
14.SpiraclesSpiracles located laterally, may be valvular and can be closedSpiracles located ventrally, never be valvular and cannot be closed
15.Number of genital openingsOpisthogoneate (single genital aperture open at the posterior end)Progoneate (single genital aperture opens at the anterior end)
16.DevelopmentDirect or indirectDirect

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