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Lecture 4

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Shawn Lehman

ANT333Y1Y Lecture #4 – Review of Living Primates & Systematics: Crarrhini Infraorder Catarrhini  Two Superfamilies: o Cercopithecoidea – narrow nose and palate, tail present o Hominoidea – broad nose and palate, tail absent Infraorder Catarrhini  Superfamily Cercopithecoidea o Family Cercopithecidae  Subfamilies: Inter-orbital regionInscisors Jaw Molar cusps Cheek pouch Tail Cercopithecinae Narrow Broad Shallow Low Present Short Colobinae Broad Narrow Deep High Absent Long  Superfamily Hominoidea o Families: 1. Hylobatidae 2. Hominidae Infraorder Catarrhini  Family Cercopithecidae Subfamily Cercopithecinae  Divided into five groups: 1. macaques 2. mangabeys 3. baboons 4. mandrills & drills 5. guenons 1. Macaques  Widest distribution of any living primate genus – used in research  Range in body size from 2.6 kg – 16 kg  Some larger species (M. thibetana) are more folivorous than smaller species (M. silenus).  Africa, Asia  Free of viruses that other monkeys have 2. Mangabeys  Large (5.2 kg – 11 kg) forest-living monkeys found in Africa.  Cercocebus spp. are more terrestrial whereas Lophocebus spp. are more arboreal.  Predominantly eat fruits and invertebrates. 1 3. Baboons  Range in size from 9.9 kg – 30 kg  All species are sexually dimorphic in body size and canine size  They have long molars and broad incisors  They have a long snout & pronounced brow ridges  Their limbs are nearly equal in length. 4. Mandrills & Drills  Large (~ 30 kg) forest monkeys from western Africa.  Extremely sexually dimorphic in body size and coloration.  Primarily terrestrial, although the smaller females and young animals do climb trees.  Alpha male has a golden colouration – due to hormones  Males are much larger than females 5. Guenons  Range in body size from 3 kg to 9 kg – come in a lot of different colours  Guenons have sexually dimorphic canines, relatively narrow molar teeth, and short 3rd molars  All are basically arboreal quadrupeds, although some make use of ground, and some are good leapers Subfamily Colobinae  Divided into three functional groups: 1. The African colobus monkeys 2. The langurs and leaf monkeys of Asia 3. The “odd-nosed” monkeys. 1. The African Colobus Monkeys a. Black and white colobus (Colobus)  Largest and most spectacular of the African colobine monkeys.  Considerable sexual dimorphism, males 9.6-13.5 kg and females 7.5-9.5 kg.  Predominantly eat mature le
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