. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. December 1993 Asiatic Herpetological Research Vol. 5, pp. 105-108 Karyotype Information on some Toad Agamas of the Phrynocephalus guttatus Species Group (Sauria, Agamidae) of the former USSR. VALANTINA V. MANILO AND MICHAEL L. GOLUBEV Institute of Zoology, Academy of Sciences, Kiev, Ukraine Abstract. -Karyotypes of several toad agamas of the Phrynocephalus guttatus species group (sensu law) were investigated in specimens from a variety of localities of the former USSR. Differences in the diakinetic
. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. December 1993 Asiatic Herpetological Research Vol. 5, pp. 105-108 Karyotype Information on some Toad Agamas of the Phrynocephalus guttatus Species Group (Sauria, Agamidae) of the former USSR. VALANTINA V. MANILO AND MICHAEL L. GOLUBEV Institute of Zoology, Academy of Sciences, Kiev, Ukraine Abstract. -Karyotypes of several toad agamas of the Phrynocephalus guttatus species group (sensu law) were investigated in specimens from a variety of localities of the former USSR. Differences in the diakinetic stage of meiosis have been observed, permitting distinctions among three groups of species. The forms guttatus, moltschanovi, kushackewitschii, and alpherakii comprise Group I; P. guttatus salenskyi represents the second group; and P. versicolor hispida represents Group III. Key words: Reptilia, Sauria, Agamidae, Phrynocephalus guttatus, Kazakhstan, Middle Asia, Precaucasus, karyology. 40 .. FIG. 1. Scheme of distribution of forms of P. guttatus species group of the former USSR fauna: la- P. g. guttatus; lb- P. g. moltschanovi; II- P. g. kushackewitschii; III- P. g. alpherakii; IV- P. g. salenskyi; V- P. versicolor hispida; VI- P. guttatus spp. (the numbering of populations is in accordance with the data in table 1). Introduction The first and only extensive karyological investigation of the agamid lizard genus Phrynocephalus Kaup is the work of Sokolovsky (Sokolovsky, 1974; 1977). Karyotype characteristics permitted the recognition of five groups. The "guttatus" group included two species, P. guttatus (Gmel.) and P. versicolor Str. These species have a diploid number of 46, all chromosomes are telocentric. The karyotypes could be divided into 12 pairs of macrochromosomes and 11 pairs of microchromosomes. Approximately 50% of the metaphase plates in P. guttatus contained satellite chromosomes on the first pair of chromosomes, but these were never observed in the P. v
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