BIOL 4570 Lab Exam 2 Flashcards | Quizlet

What are the primary characteristics of the family Viperidae?

Solenoglyphous (hinged fangs), Sensory pits, Ovoviviparious

What are the three suborders of Squamata?

serpentes, amphisbaenia, lacertilia

What does the term opisoglyphous mean?

rear fixed fangs

What does the term proteroglyphous mean?

front fixed fangs

What does the term solenoglyphous mean?

front hinged fangs

What are the characteristics and traits of Crotalus horridus?

Timber Rattlesnake, variable color with a solid black tail and tan rattle, thin black bands on dorsal and brown broad postocular stripe, keeled scales, undivided, overwinter in hibernaculums, last to emerge from dormancy, rather calm, ovoviviparous

What are the characteristics and traits of Crotalus viridis?

Prairie rattlesnake, tan to greenish with black ringed tail and tan rattle, brown saddles with spots on side and white postocular stripe, keeled scales, undivided, nocturnal in winter dinural in spring/summer, pugnacious (quick to fight), diamond head with thin neck

What are the characteristics, habitat, and range of Sistrurus catenatus?

Eastern Massasauga rattlesnake, dark brown dorsal splotches outlined in white, blotches turn to rings on tail, black ventral with white/yellow irregular spots, small spots on side with broad brown postocular stripe, keeled scales, undivided, triangle head, overwinter near marshes and rivers, emerge in spring flooding from stolen burrows, ovoviviparous, passive, found in E IA

What are the characteristics and range of Sistrurus tergeminus?

Western Massasauga rattlesnake, light brown gray background with brown saddles outlined in white, blotches can turn into stripes on tail, black ventral with irregular white yellow, broad brown postocular stripe, keeled scales, undivided, ovoviviparous, found in extreme SW

What are the characteristics, ecology, and range of Agkistrodon contortrix?

Eastern copperhead, tan background with hourglass saddles and cream ventral with dark patches, small spots on sides with broad brown postocular stripe, weakly keeled scales, undivided, rocky wooded rivers or valleys, overwinter communally, active during day until too hot then nocturnal, females alternating years breeding, ovoviviparous, passive, extreme SE

What are the defining characteristics of Family Elapidae?

elapids, smooth scales, proteroglyphous (front fangs), tropical, arboreal to marine, look externally similar to colubridae, neurotoxic venom, mostly oviparous, cobras mambas death adders etc. (not IA)

What are the defining and ancestral characteristics of Family Boidae?

Boas, smooth scales, algyphous (no fangs), heavy species, some have labial pits, all constrictors, ovoviviparous, ancestral characteristics, rigid lower jaw (akinetic skull), functional left lung, vestigial pelvic girdle spur, palatal teeth

What are the defining characteristics of Family Pythonidae?

Pythons, smooth scales, algyphous (no fangs), heavy snakes, labial pits, maintain ancestral characters, all constrictors, oviparous

What are the characteristics of family colubridae?

colubrids, aglyphous and opisoglyphous, keeled and smooth, mostly oviparous, reduced left lung, opisthoglyphous

What are the identifying features of Thamnophis sirtalis?

common garter, yellow lateral stripe second and third row, unmarked labial scales, keeled, undivided

What are the identifying features of Thamnophis radix?

plains garter, yellow lateral stripe third and fourth row, barred labial scales, keeled, undivided

What are the identifying features of Thamnophis proximus?

ribbon snake, yellow lateral stripe third and fourth row, unmarked labial scales, keeled, undivided

What are the characteristics of Carphophis vermis?

western worm snake, pink/red belly extends up sides, pointed head and small eyes, smooth and glossy, divided

What are the characteristics of Lampropeltis holbrooki?

speckled kingsnake, pale yellow speckling, smooth, undivided

What are the characteristics of Lampropeltus trangulum?

eastern milksnake, red saddles with black outlines, checkered belly, smooth, undivided

What are the characteristics of Lampropeltis calligaster?

prairie kingsnake, olive/brown, cream belly with brown checkers, brown saddles with black outlines, blotches on neck, dark line eye to jaw, weakly keeled, divided

What are the characteristics of Pantherophis ramspotii?

western fox snake, orange/brown background, yellow belly black checkering, brown saddles with alternating blotches, blotches become rings on tail, weakly keeled, divided

What are the characteristics of Pantherophis obsoletus?

western rat snakes, white neck/labial scales, pattern highly visible on juveniles, ontogenetic shift, keeled, divided

What are the characteristics of Coluber constrictor?

north american racer, yellow neck/throat, white labials, unmarked belly, smooth, divided, ontogenetic shift

What are the characteristics of Pitouphis catenifer?

bullsnake, saddles with three color regions, barred labials, enlarged rostral scale, keeled, undivided