Zoology - Annelids & Arthropods

lepidoptera

scale winged

lepidoptera example

butterflies, moths

hymenoptera

membrane winged

hymenoptera examples

ants, wasps, bees

diptera

two winged

diptera examples

flies, mosquitos

coleoptera

shield winged

coleoptera examples

beetles, weevils

annelid circulatory system

closed

arthropod circulatory system

open

chelicerae

arachnids; fangs/pincers used for feeding - inject poison

pedipalps

arachnids; reproduction (transfer of sperm) and defense

chelipeds

crustaceans; defense - can hold food

annelid segments

metamere redundancy

annelid feeding

mouth, esophagus, crop, gizzard

annelid reproduction

external through clitellum - receives sperm from seminal receptacles: MONOECIOUS

annelid example

earthworms

insect segments

head, thorax, abdomen

insect eye

compound

insect feeding

jaws

insect reproduction

external - females store sperm like earthworm

insect example

butterflies, beetles

chilopoda and diplopoda segments

head, thorax, many segments on abdomen

chilopoda and diplopoda eye

compound, sometimes simple

chilopoda feeding

jaws (venomous)

chilopoda and diplopoda reproduction

external - deposit packets of sperm

chilopoda example

centipedes

diplopoda feeding

jaws

diplopoda example

millipedes

crustacea and arachnid segments

cephalothorax, abdomen

crustacea eye

complex moveable

crustacea feeding

jaws

crustacea reproduction

oviducts deposit eggs, pass over seminal receptacles and are protected under abdomen

crustacea example

shrimp

arachnid eye

multiple simple

arachnid feeding

pincers or fangs

arachnid reproduction

use pedipalps to deposit it on genital opening or deposit sperm in packets

arachnid example

spiders

merostomata segments

cephalothorax, abdomen, telson

merostomata eye

compound

merostomata feeding

pincers

merostomata reproduction

male fertilizes eggs as they are laid - external

merostomata example

horseshoe crabs