Vol. 41, No. 4 October 2000

Watts, David P.; Mitani, John C.: Infanticide and Cannibalism by Male Chimpanzees at Ngogo, Kibale National Park, Uganda ..........357 Key Words: Chimpanzees, Infanticide, Cannibalism, Boundary patrole .

Phillips, Erica M.; Walker, Alan: A New Species of Fossil Lorisid from the Miocene of East Africa ..........367 Key Words: Mioeuoticus, Lorisidae, Rusinga Island, Miocene.

Brugiere, David; Fleury, Mario-Claire: Estimating Primate Densities Using Home Range and Line Transect Methods: A Comparative Test with the Black Colobus Monkey Colobus satanas ..........373 Key Words: Polyspecific association, Primate density, Census methods, Line transect, Home range.

Inoue-Murayama, Miho; Niimi, Youko; Takenaka, Osamu; Murayama, Yuichi: Allelic Variation of the Dopamine Receptor D4 Gene Polymorphic Region in Gibbons ..........383 Key Words: Neurotransmitters, Gibbon, Evolution, Classification, Geographical distribution .

Kholkute, S. D.; Gopalkrishnan, Kamala; Puri, C. P.: Variations in Seminal Parameters over a 12-month Period in Captive Bonnet Monkeys ..........393 Key Words: Macaca radiata, Dperm motility, Morphology, Functional parameters, Testosterone.

Short Communications

Panger, Melissa A.; Wolfe, Linda D.: Carrying and Hand-use Patterns in Panamanian White-faced Capuchins (Cebus capucinus) ..........407 Key Words: Cebus capucinus, Capuchin, Laterality, Handedness, Hand preference, Panama.

Gould, Lisa: Adoption of a Wild Orphaned Ringtailed Lemur Infant by Natal Group members: Adaptive Explanations ..........413 Key Words: Adoption, Ringtailed lemur, Orphan, Adaptive exolanations.

Jovanovic, Tanja; Megna, Nancy L.; Maestripieri, Dario: Early Maternal Recognition of Offspring Vocalizations in Rhesus Macaques (Macaca mulatta) ..........421 Key Words: Rhesus macaques, Mother-infant recognition, Vocalizations.

Book Review ..........429

Note ..........433