Arthropods- Myriapods & Chelicerates

?
Myriapods (sub-phylum)
Centipedes and millipedes, body: head and a long repeating trunk, one pair of antennae, many uniramous limbs on a trunk, terrestrial, young resemble adults, moult to grow
1 of 12
Millipede
2 Pairs of legs per segment, not carnivorous, not dangerous but can smell
2 of 12
Centipede
1 pari of legs per segment, carnivorous, can be dangerous
3 of 12
Chelicerata (sub-phylum)
'Talon horned', body divided into cephalothorax & abdomen, no antennae, 2 pairs of appendages on anterior cephalothorax (chelicerae and pedipalps), 4 pairs of uniramous walking legs
4 of 12
Horseshoe crabs
Dorsal carapace (shell on back), pointed tail, marine, eat molluscs &annelids, mate at high tide, full moon on beach edge, eggs &larvae food for birds, blood cells very sensitive indicator of bacteria
5 of 12
Arachnida
8 legs, terrestrial, spiders, scorpions, harvest men, mites and ticks
6 of 12
Spiders
(Class: Araneae) Spherical abdomen, chelicerae with poison glands, pedipalps for sensory and handling, book lungs/ trachea, silk, active or passive predators
7 of 12
Describe how spiders eat their prey
Rapidly immobilise prey, digestion start outside body with toxins, ingests liquid (stomach acting as a pump)
8 of 12
Scorpions
(Order: Scorpiones) Chelicerae short and powerful, pedipalps have large claws, tail has stinging poison gland, book lungs, pectines, active predators
9 of 12
What are pectines?
Feather-like structures on the under-belly of scorpion, they are sensory appendages, thousands of chemosensors in them
10 of 12
Harvestmen
(Order: Opiliones) Long legs, not venomous but carnivorous, some smell if threatened
11 of 12
Mites and ticks
(Order: Acarina) Wide junction between cephalothorax & abdomen, almost all are small, some carnivorous, some herbivores, includes human parasites and disease vectors
12 of 12

Other cards in this set

Card 2

Front

Millipede

Back

2 Pairs of legs per segment, not carnivorous, not dangerous but can smell

Card 3

Front

Centipede

Back

Preview of the front of card 3

Card 4

Front

Chelicerata (sub-phylum)

Back

Preview of the front of card 4

Card 5

Front

Horseshoe crabs

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Animal Kingdom resources »