* Numbers proceeding the colon are the 2n's of the sexes. In cases of Robertsonian polymorphism, the theoretically expected. range is given. The code bettween the colon and the "M" gives the types and numbers of the macrochromosomes. "I" Is telo- or aero-centric. "sl" Is sub-acrocentric. "sV" is sub-metacentric. "V" is metacentric or nearly so. Where both I and V or V and sV macros are present in a karyotype, the underlined numbers enclosed in parentheses between the number and the type designation (I or sV) Indicate which of the metacentric pairs are present or involved in the difference. Where a Robertsonian mutation is present as a polymorphism, the underlined number of the V chromosome involved is followed by a "p". Following the M is the number of microchromosomes, "m." "Em" designates the presence of an especially large microchromosome, intermediate in size between the macros and other micros. Except for this, no attempt is made to designate morphological details of the micros, although for many species the micros are differentiable. Where sex chromosomes are distinguishable these are indicated separately, either as micros or macros. Morphologlcally different and probably non-homologous sex chromosomes are so indicated:
x = x1 ≠ x'1 = x'1 ≠ x'';
x2 ≠ x'2 ≠ x2
y ≠ y' ≠ y'' ≠ y* ≠ y**;
Satellite shifts, small inversions, and some non-Robertsonian differences are not indicated in the formulae.
[H]: Hall, W.P. (in prep.) Comparative population cytogenetics, speciation, and evolution in the iguanid lizard genus Sceloporus. Thesis, Harvard University
[L1]: Lowe, C.H., J.W. Wright, and C.J. Cole, 1966. Chromosomes and karyotypes of sceloporine iguanid lizards in the North American Southwest. Mamm. Chrom. News. #22:201-203.
[L2]: Lowe, C.H., C.J. Cole, and J.L. Patton. 1966. Karyotype evolution and speciation in lizards (genus Sceloporus) during evolution of the North American Desert. Syst. Zool. 16: 296-300.
[C1]: Cole, C.J, C.H. Lowe, and J.W. Wright. 1967. Sex chromosomes in lizards. Science 155; 1028-1029.
[C2]: Cole, C.J. and C.H. Lowe. 1968. The karyotype of a lizard (Sceloporus virgatus) and description of a spontaneous chromosomal aberration. J. Arizona Acad. Sci. 5: 128-130.
[C3]: Cole, C.J. 1970. Karyotypes and evolution of the spinosus group of lizards in the genus Sceloporus. Amer. Mus. Novitates #2431, 47p.
[C 4]: Cole, C.J. 1971. Kayyotypes of the five monotypic species groups of lizards in the genus Sceloporus. Amer. Mus. Novitates #2450, l7p.
[C5]: Cole, C.J. 1971. Karyotypes and relationships of the pyrocephalus group of lizards in the genus Sceloporus. Herpetologica 27:1-8.
[A]: Axtell, C.A. (pers. comm.)
[J]; Jackson, L, and D. Hunsaker. 1970. Chromosome morphology of sceloporlne lizards (Sceloporus occidentalis and S. graciosus). Experientia 26: 198.