THE MUSEUM BIO-A RECEIVED TEXAS TECH UNIVERSITY 91035

摘要: MATERIALS And Methods Because of the extensive homology observed between Neotoma and Peromyscus and the availability of a standard chromosomal numbering system for Peromyscus (Committee for Standardization of Chromosomes of Peromyscus, 1977), we used this numbering system as a reference in comparing the G-band patterns of the various taxa. In some of the smaller chromosomes, numbers could not be assigned with certainty to a particular chromosome, and these are identified by a"?" in Fig. 3.The G and C-bands of N. mexicana and N. floridana as well as additional N. micropus presented in this paper, were prepared from bone marrow suspensions (Lee and Elder, 1980). G-bands were developed by trypsin digestion and Giemsa staining (Seabright, 1971). C-bands were obtained using the procedure described by Stefos and Arrighi (1971).