Al-Azhar University, Faculty of Science (Boys)Al-Azhar Bulletin of Science1110-253527Issue 1-C20160601CRANIAL ALLOMETRY, SEXUAL DIMORPHISM AND AGE STRUCTURE IN SAMPLE OF THE EGYPTIAN WOLF CANISANTHUSLUPASTER182433610.21608/absb.2016.24336ENMAHMOUD I.YOUNESDEPARTMENT OF ZOOLOGY, FACULTY OF SCIENCE, AL AZHAR UNIVERSITY, NASR CITY, CAIRO, EGYPTFOUAD F.FOUADDEPARTMENT OF ZOOLOGY, FACULTY OF SCIENCE, AL AZHAR UNIVERSITY, NASR CITY, CAIRO, EGYPTJournal Article20160215The study investigates the occurrence of age-related allometric changes in a number of cranial and dental measurements of the Egyptian wolf Canis anthus lupaster from different areas of Egypt.The age structure of a sample of 55 specimens of both sexes of C.a. lupaster was investigated using counting dentine layers on longitudinally sanded canine roots.The results showed that most of the wolves were between one and three years of age. The oldest individual was 11 years old. A set of isometric cranial and dental characters that qualify as diagnostic characters for analyzing interaspecific,morphologicaldifferentiationamongpopulations of this and other closely related canids are identified.Al-Azhar University, Faculty of Science (Boys)Al-Azhar Bulletin of Science1110-253527Issue 1-C20160601MORPHOMETRIC ANALYSIS OF GERBILLUS ANDERSONI, G. CAMPESTRIS AND G. AMOENUS FROM EGYPT9162433810.21608/absb.2016.24338ENMahmoud I.YounesDepartments of Ecology Lab.,Faculty of Science, Al Azhar University, Nasr City, Cairo, Egypt.Mahmoud A.KhalifaMolecular Biology Lab., Faculty of Science, Al Azhar University, Nasr City, Cairo, Egypt.AhmedGhazyZoology, Faculty of Science, Al Azhar University, Nasr City, Cairo, Egypt.Journal Article20160130Despite a significant number of studies on the taxonomy of small mammals, very little of this work has been conducted on species in Egypt. External, cranial and dental morphometric analysis of the closely related Gerbillus andersoni, G. campestris and G. amoenus from different ecogeographical regions of Egypt were studied. Statistical analyses of cranial and dental variability allowed us to discriminate three morphological groups which are congruent with the three clusters suggested by previous morphological studies. Higher similarity is observed between G. andersoni populations in the Sinai and Western Mediterranean Coastal Desert despite the fact that they are separated from each other by about 200 km of the Nile Delta. Cluster and principal component analysis, show higher degree of divergence between the subgenus Dipodillus and the other two subgenera Gerbillus and Hendecapleura. This fact suggests that the morphometric differences observed among species within the genus Gerbillus are not mainly related to its phylogeny