title: Geographical variation of the skull of the lesser mouse deer.
abstract: We examined the geographical variation of the skull size and shape of the lesser mouse deer (Tragulus javanicus) from Laos, Thailand, Peninsular Malaysia, Sumatra, Java, Borneo, Langkawi and some Islands of Tenasserim in Myanmar. Although the influence of the climatic condition on skull size was not confirmed in the mainland populations, the skull became rostro-caudally longer in the populations of Tenasserim and Sumatra because of island isolation effect. The skull size was classified into the following three clusters of localities from the matrix of Q-mode correlation coefficients: 1) Langkawi and Tenasserim, 2) Laos and Thailand, 3) Sumatra and Borneo. The skulls in the population of Java belong to the cluster of Langkawi and Tenasserim in male, however were morphologically similar to those in the cluster of Borneo and Sumatra. The canonical discriminant analysis pointed out that the Laos and Tenasserim populations were separated from the other ones and that the populations of Sumatra, Java and Borneo were intermingled each other.
authors.affiliation: Department of Zoology, National Science Museum, Tokyo, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Endo
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Fukuta
authors.forename: Junpei
authors.initials: J
authors.lastname: Kimura
authors.forename: Motoki
authors.initials: M
authors.lastname: Sasaki
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Stafford
mesh_terms: D000818:Animals; D001208:Asia; D001837:Body Weights and Measures; D003670:Deer / Q000033:anatomy & histology*; D016002:Discriminant Analysis; D005260:Female; D005843:Geography; D008297:Male; D012886:Skull / Q000033:anatomy & histology*; D013045:Species Specificity