ANT333Y1 Lecture Notes - Lecture 3: Grooming Claw, Dwarf Galago, Tympanic Part Of The Temporal Bone
Document Summary
Ant333 lecture 3 - review of living primates & systematics: lorisoids, tarsiers, Galagos (family galagidae) restricted to africa, very small. Lorises (family lorisidae) found in africa & asia. Lorisoids have classic strepsirhine features: dental tooth comb, grooming claw on 2nd digit, & flared talus. Lorisoid: pharyngeal artery provides main blood supply to brain, tympanic ring fused to lateral wall. Lemuroid: stapedial branch provides main blood supply to brain, tympanic ring suspended with bulla. Very diverse group; little agreement on systematics. Generally, 4 genera: otolemur, alago, euoticus, & galagoides. Body weights: range from 60 g (galagoides demidoff) to 1100 g (o. crassicaudatus). Diet composed of insects, fruit, & gum (varies among species). Nyctocebus pygmaeus only mammal with neurotoxic chemicals: family lorisidae. Also diverse group, with up to five genera. Body weights range from ~ 270 g (loris tartagratus) to 1110 g (nycticebus coucang). Generally, diet is either largely frugivorous or insectivorous.
