Monday, October 30, 2017

Q21: Nonhuman primate taxonomy/anatomy I: basics

This one is mostly new world primates....

1.  Depending on how you classify them, nonhuman primates can be divided into suborders  based on retention of primitive characteristics (prosimians meaning "before primates" and anthropoids or "resembling humans") or based on shared derived characteristics (Strepsirrhines - from the Greek meaning "twisted nose"  and Haplorrhines - meaning "simple nose").  Strepsirrhines have wet noses and haplorrhines have dry noses. 

  • List the superfamilies included in the suborders prosimii, and anthropoidea.  
  • Which suborder is classified either with the less- or more- advanced primates depending on which classification criteria are used?


2. Anthropoidea are generally divided into platyrrhines (new world monkeys) and catarrhines (old world monkeys).  Assign the following characteristics to prosimians, tarsiers,  platyrrhines, or catarrhines:
a. May have prehensile tail
b. cheek pouches
c. ischial callosities
d. "toilet claw"
e. largely nocturnal
f. Fissured nose
g. fused mandible
h. Hindlimbs longer than forelimbs
i. Can be bipedal
j. All arboreal
k. All carnivorous
l. Stereoscopic color vision
m. Flat nose with flared nares
n. Require vitamin D3


3. Platyrrhines can be divided into families Callitrichidae and Cebidae.
a. Which family has many CITES listed genera?
b. What does CITES stand for?  What specifically does it place controls on?
c. What is the unique feature of the placenta in Callitrichidae?  What does this often result in?
d. Which genus is often used for malaria research?  Why?
e.  Which genus has naturally occurring atherosclerosis?
f. Which genus was sent into space?
f. Squirrel monkeys are often classified according to whether the hair pattern on their face resembles a gothic arch or a roman arch.  Which species fall into each, and which of these is used in malaria research?
g. which genus has a semi-prehensile tail?  Which genera have true prehensile tails?  What is the difference between prehensile and pseudo-prehensile tails anyway?
h. What is the regulatory impact of brachiation?
i. Which genus is used to study gout?
j. What is special about the hallux in callitrichidae?  And what is a hallux?
k. Which genus gets Vitamin E responsive hemolytic anemia?
ANSWERS
Many thanks to our residents and most recently to Diane for compiling this information!





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