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    Contributions to the Karyology and Distribution Areas of Cytotypes of Nannospalax leucodon (Rodentia: Spalacidae) in Western Anatolia
    (INST ZOOLOGY, BAS, 2010) Kankilic, Teoman; Kankilic, Tolga; Seker, Perincek Seckin; Colak, Reyhan; Selvi, Engin; Colak, Ercuement
    Mole rats of the genus Nannospalax having high karyotypic variability (chromosome numbers ranging from 2n = 36 to 2n = 62) are dominant mammals occupying the subterranean niche in Anatolia. Respective distributional ranges of karyotypic forms within this taxon remain uncertain due to insufficient data. In the present study, karyological analyses of 36 specimens belonging to N. nehringi were examined from 10 sampling sites of Western Turkey. During the study, five karyotypic forms were recorded (2n = 36 NF = 68 from Aydin, 2n = 40 NF = 72 from Isparta, 2n = 56 NF = 72 from Usak, 2n = 60 NF = 78 from Isparta and 2n = 60 NF = 84 from Denizli and Burdur). When distribution areas of karyotipic forms are considered, these karyotypes are new records for this taxon in Turkey. In addition, this study aims to determine the most likely distribution areas of the four chromosome forms (2n = 36, 40, 56, 60) in Turkey paying attention on previously verified localities data.
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    On the karyology, morphology and biology of Chionomys gud (Satunin, 1909) (Mammalia: Rodentia) in Turkey
    (UNIV ORADEA PUBL HOUSE, 2009) Sozen, Mustafa; Ozkurt, Sakir Onder; Karatas, Ahmet; Colak, Ercuement; Matur, Ferhat
    We examined the karyotype of Chionomys gud for the first time from Turkey, and found the values 2n=54, NF=58 and NFa=54. The X chromosome was found to be submetacentric and the Y chromosome acrocentric. Counts of embryos suggested a litter size range of 4 - 6 (mean 4.66, N = 3). Glans penis was stick shaped and covered by numerous microscopic papillae. The baculum had a well developed cartilaginous trifit distal process. The stalk of baculum had a well developed and broad base. The base and the shaft of the os baculum were roughly triangular in shape in dorsal view. The skull shapes of young, adult and aged specimens had distinctive features; in particular, the sagital crest became more prominent in older animals. Much variation was found in the shape of the molar chewing surfaces.