Reptiles Flashcards
Extirpated
ceases to exist in chosen area
Reptiles Ranked by Species Richness (least to greatest)
Tuataras
Crocodilians
Turtles
Squamates
oviparous
egg layers
viviparous
live bearers
parthenogenesis
asexual females
Major Reptile Groups
testudines
crocodylia
sphenodontida
squamata
where is the order testudines?
cosmopolitan; terrestrial, fresh & marine waters
where if the order crocodylia
tropics and subtropics globa
where is the order sphenodontida?
small islands around New Zeland
where is the order squamata?
cosmopolitan
osteoderms
bony plates on back and tail
carapace
upper turtle shell
plastron
lower turtle shell
tomium
turtle beak (no teeth)
terrestrial turtle
tortoise
semiaquatic turtle
terrapin
cryptodires (turtles)
hidden-neck
pleurodires (turtles)
side-neck
Lepidosaurs (reptile suborder)
tuataras & squamates
ecdysis
shedding
Acrodont
teeth attached on top
Pleurodont
teeth attached on side
Thecodont
teeth attached inside (crocs)
tympanum
eardrum
relicts
living fossils
caudal autotomy
voluntarily amputating the tail
difference between snakes & lizzards
snakes are missing ear openings
weer fishing (gators)
creating a dam with body. animals have to pass snout
families and species of crocs in FL:
2 families, 2 species
families and species of chelonians in FL:
29
families and species of squamates (lizards):
17
families and species of squamates (snakes):
48
family alligatoridae
wide snouts with separated nostrils. overbite
American Alligator
habitats: mostly fresh water
range: statewide
other: males can grow to 14 ft. mainly nocturnal. vocal. create wallows during low water. threatened in ’70s
family crocodylidae
narrow snout. interlocking jaw. nostrils are together
American Crocodile
Habitat: fresh water & estuaries
range: southern FL coasts
other: males can grow to 15 ft.
nocturnal. federally threatened
family rhineuridae
worm lizards: look like pink worms
Florida Worm Lizard
range: almost endemic, central/north peninsula
other: completely fossorial. not well known
family anguidae
glass lizards: pleat/groove runs length of body. legless
Eastern Glass Lizard
habitat: open and grassy areas
range: entire state
other: burrow in grasses and sandy soils
family gekkonidae
geckos: lack eyelids
dorsoventrally flattened
toes with lamellae (1 native but 12 introduced)
FL reef gecko
tiny and brown. yellow and brown stripes on head
smallest native lizard
lay single eggs year round
family phrynosomatidae
spiny lizards (FL scrub and eastern fence)
keeled pointed scales
blocky heads
males have blue bellies
eastern fence lizard
gray with chevrons