Vol. 38, No. 1 January 1997

Jurmain, Robert: Skeletal Evidence of Trauma in African Apes, with Special Reference to the Gombe Chimpanzees..........1 Key Words: Chimpanzee, Gorilla, Bonobo, Gombe, Skeletal trauma, Interindividual aggression.

Gould, Lisa: Intermale Affiliative Behavior in Ringtailed Lemurs ( Lemur catta ) at the Beze-Mahafaly Reserve, Madagascar..........15 Key Words: Ring-tailed lemur, Affiliative behavior, Adult males.

Baldellou, Maribel; Adan, Ana: Time, Gender, and Seasonality in Vervet Activity: A Chronobiological Approach..........31 Key Words: Diurnal rhythms, Gender differences, Breeding seasonality, Seasonal differences, Vervet monkey.

Basabose, Kanyunyi; Yamagiwa, Juichi: Predation on Mammals by Chimpanzees in the Mantane Forest of Kahuzi, Zaire..........45 Key Words: Predation rate, Chimpanzee, Cercopithecus monkey, Fecal analysis.

Takahashi, Hiroyuki: Hudding Relationships in Night Sleeping Groups Among Wild Japanese Macaques in Kinkazan Island During Winter..........57 Key Words: Japanese macaque, Huddling, Sleeping group, Winter, Cool temperate zone.

Müller, Klaus-Heinrich; Ahl, Christian; Hartmann, Gerhard: Geophagy in Masked Titi Monkeys ( Callicebus Personatus melanochir ) in Brazil..........69 Key Words: Masked titi monkey, Geophagy, Chemical properties, Soil properties.

Mori, Akio; Iwamoto, Toshitaka; Bekele, Afework: A case of Infanticide in a Recently Found Gelada Population in Arsi, Ethiopia..........79 Key Words: Gelada baboon, Infanticide, Male takeover, Leadership change.

Nozaki, Masumi; Yamashita, Kaoru; Shimizu, Keiko: Age-related Changes in Ovarian Morphology from Birth to Menopause in the Japanese Monkey, Macaca fuscata fuscata ..........89 Key Words: Reproductive senescence, Aging of ovary, Macaque monkey, Follicular depletion.

Short Communication

de Freitas Burity, Carlos Henrique; Mandarim-de-Lacerda, Carlos Alberto; Pissinatti, Alcides: Craniometric Sexual Dimorphism in Leontopithecus Lesson, 1840 ( Callitrichidae, Primates )..........101 Key Words: Lion tamarin, Cranium, Mandible, Sexual dimorphism.

Book Reviews..........109