P. Arthropoda (ecdysozoa) Flashcards Preview

BIOL 1030 > P. Arthropoda (ecdysozoa) > Flashcards

Flashcards in P. Arthropoda (ecdysozoa) Deck (11):
1

SP. Chelicerata

Characterized by:

First appendages are chelicerae (mouthparts)

Second appendages are pedipalps (pinchers or feelers)

2

SP. Crustacea / C. Crustacea

Crustaceans

2 pairs of antennae

Larva are nauplius

3

SP. Hexapoda / C. Insecta

Characterized by:

Mandibles for mouthparts

6 legs

4

C. Chilopoda

Centipedes

1 pair of legs per segment

5

C. Diplopoda

Millipedes

2 pairs of legs per segment

6

C. Merostomata

Horseshoe crabs

Pedipalps look like legs

Telson "tail," book gills, carapace

7

C. Arachnida

Arachnids (scorpions, spiders, mites, ticks)

8 legs

Chelicerae are fangs

8

O. Opiliones

Harvestmen (daddy longlegs)

Females use ovipositor to lay eggs

9

O. Scorpiones

Scorpions

Pedipalps are pinchers

10

O. Aranaea

Spiders

2 segments: prosoma and opisthosoma

Spinnerets

11

O. Acari

Mites and ticks

Chelicerae fused into capitulum for piercing