ARCL-1006EL Lecture Notes - Lecture 6: Rhinarium, Strepsirrhini, Haplorhini
16 Jun 2018
School
Department
Course
Professor
ARCL1006
Jan 31, 2018
Diversity of Living Primates
ā¢All about Noses
ā¢Strepsirrhini
ā¢strepsi- turning inward
ā¢comma shaped nostril on the rhinarium (wet nose!!!!)
ā¢LEMURS & lorises
ā¢Haplorhini
ā¢haplos- one single fold, simple
ā¢no rhinarium (no wet nose!!!)
ā¢Platyrrhini
ā¢Plat- ļ¬at
ā¢ļ¬at nose
ā¢new world monkeys
ā¢Catarrhini
ā¢Cata- hooked nose
ā¢downward facing nose/nostrils
ā¢both old world, and apes, and humans
ā¢Lemurs (strep)
ā¢type of locomotion:
ā¢ring tailed- on the ground
ā¢Brown- trees
ā¢mostly four legs//upright body
ā¢vertical clinging and leaping
ā¢time of day active:
ā¢day
ā¢type of food:
ā¢Physical characteristics:
ā¢wet nose
ā¢elongated snout
ā¢long tails
ā¢good at grasping
ā¢mobile ears
ā¢Whiskers
ā¢closer to mammals than primates
ā¢large primates: diurnal// smaller primates: nocturnal
ā¢nails instead of claws- claw on second digit//retained for grooming purposes
ā¢dental comb for grooming purposes
ā¢general size:
ā¢small//medium
ā¢group or solitary:
ā¢ gregarious (group)
ā¢some are solitary
ā¢Adaptive radiation: evolved to inhabit multiple niches// therefore 100s of different lemur
species that vary in characteristics in the same place
ā¢GORILLA SIZED LEMURS WAY BACK WHEN
ā¢Lorises (strep)
ā¢type of locomotion:
ā¢Slender limbs for navigation
ā¢long limbs for climbing
ā¢Arboreal (lives in trees)
ā¢Quadrupedal
ā¢Climbers (:
ā¢infant parking- leave young- cover infant in saliva- causes allergic reactions to
predators- predator spits out baby somewhere and goes away
ā¢time of day active:
ā¢nocturnal
ā¢type of food:
ā¢Fruits
ā¢insects
ā¢Physical characteristics:
ā¢slender limbs (slender limbed loris)
ā¢night vision // big eyes
ā¢general size:
ā¢tiny baby
ā¢group or solitary:
ā¢solitary
ā¢fewer species of loris//africa, south asia//tropical forests
ā¢Tarsiers (haplo)
ā¢type of locomotion:
ā¢leaps 15 feet
ā¢trees//
ā¢vertical clinging
ā¢elongated feet for gripping
ā¢time of day active:
ā¢hunts at night
ā¢Nocturnal
ā¢type of food:
ā¢Insects
ā¢Physical characteristics:
ā¢canāt move pupils lmfao has to move WHOLE head
ā¢elongated feet and ankles
ā¢eyes bigger than stomach and brain hehe
ā¢Elongated feet for gripping
ā¢long tails!
ā¢big ears for very good hearing
ā¢boney ring that protects eyes
ā¢180 degree head range
ā¢general size:
ā¢tiny baby
ā¢group or solitary:
ā¢Gregarious- families of 8
ā¢pair bond
ā¢TARSIIFORMERS- tarsioidea
ā¢ONLY 5 species of these left in the world
ā¢found in south east asia//Philippines
