Key to Life in the Pond
description
Transcript of Key to Life in the Pond
Key to Life in the PondNo ShellsShells
Double ShellSingle Shell Without Backbone (Invertebrates)With Backbone (Vertebrates)
External gills(legs may not be present)
No gills
SalamanderLarva Tadpole
Fish
No Legs
Worm-LikeWith Tentacles, Brushes or “Tails”
body with bristles,no suckers
reddish brown,segmented body
glides alongbottom, body not
segmented
suckers, expandsand contracts,
segmented body
small, hair-like,swims in
“S”-shape
tan to brown,long
BristleWorm
TubifexWorm
Leech
Nematode orThreadworm
Flatworm orPlanaria
on surface, stif fwith tail disk
breathing tubeat rear
red, green ortan 'twists',distinct head
large head,'wriggles'
transparentbody
Soldier FlyLarva
MosquitoLarva
MosquitoPupa
Phantom MidgeLarva
Midge Larva
HorsehairWorm
Microscopic
tentaclesswims witha jerk – using
antennas
apostrophe-shaped
round
HydraCyclops orCopepod
Seed & ClamShrimp
Water Fleaor
Daphnia
spiral,opening on lef t
small,whitish, tan or brown
spiral,opening on right
Pouch Snail Gilled Snail
Pill orFingernail
Clam
coiled
Orb Snail
large, 2 to 8 inches,dark-colored
FreshwaterMussel
lobster-like pinkish,feathery
shrimp-like,swims on side
walks onbottom
Crayfish
FairyShrimp
Scud orAmphipod
AquaticSowbug or
Isopod
Fewer than Three “Tails”
large mouth parts,“spines” on side
large body,hinged mouth
of ten lives intube or case
hangs from surface,large mouth parts
tiny, hopson surface
DobsonflyLarva
DragonflyLarva Predaceous
Diving BeetleLarva
Springtail
Caddisflylarva
Three “Tails”
plate-like “tails,”no gills on abdomen
long “tails,”gills on
abdomen
DamselflyLarva
MayflyLarva
Beetle-Like, Wings Hard
swims, moving hindlegs alternating
back legs moveat same time
swims onsurface
“crawls” throughwater, spotted
WaterScavenger
Beetle
PredaceousDivingBeetle
WhirligigBeetle
CrawlingWaterBeetle
Legs
10+ Legs Four Pairs of Legs Three Pairs of Legs
tiny, of ten brightlycolored
runs on topof water
Water Mite
Fishing Spider
Leathery Wings (True Bugs)
swims on back,back white
dark, lives onsurface
long,stick-like
tan, lives onsurface
swims right-sideup, back black
BackswimmerWaterStrider
MarshTreader
WaterBoatman
Water Scorpion‘Ranatra’
long breathing tube,grasping front legs
WaterScorpion‘Nepa’
grasping front legs,up to three inches
GiantWater Bug
Wings
No Wings
PyralidCaterpillar
six legs andprolegs onabdomen
(Sizes of illustrations are not proportional.)
side viewof “tails”
Developed by the University of Wisconsin–Extension in cooperation with the WisconsinDepartment of Natural Resources. Based on akey developed by Riveredge Nature Center, Newburg, WI. May be reproduced with thiscredit for educational, non-profit purposes. For information, contact UWEX EnvironmentalResources Center, 608/262-2634. Universityof Wisconsin-Extension is an EEO/AffirmativeAction employer and provides equal opportuni-ties in employment and programming, includingTitle IX and ADA requirements.