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Table 1 Morphometric characteristics of the chromosomes of C. macrogaster based on 10 mitosis
Pair No Chromosomes
length (µm)
Mean plus or minus S.E.		 Relative length

(% of 2n set)		 Centromeric index

Meanplus or minus S.E.		 Arm ratio

Mean plus or minus S.E.		 Chromosome
morphology
1 13.58plus or minus0.58 21.90plus or minus0.67 46.08plus or minus1.83 1.17plus or minus0.09 m
2 9.32plus or minus0.41 15.03plus or minus0.26 44.44plus or minus1.41 1.24plus or minus0.07 m
3 5.67plus or minus0.25 9.14plus or minus0.20 36.06plus or minus2.37 1.79plus or minus0.19 sm
4 5.00plus or minus0.24 8.06plus or minus0.17 29.72plus or minus3.92 2.46plus or minus0.40 sm
5 3.48plus or minus0.25 5.61plus or minus0.25 - infinity a
6 2.99plus or minus0.16 4.82plus or minus0.10 - infinity a
7 2.51plus or minus0.16 4.04plus or minus0.13 - infinity a
8 2.11plus or minus0.10 3.40plus or minus0.12 - infinity a
9 1.77plus or minus0.10 2.85plus or minus0.13 - infinity a
10 1.42plus or minus0.08 2.29plus or minus0.07 - infinity a
11 1.18plus or minus0.18 1.90plus or minus0.09 - infinity a
X 12.96plus or minus0.85 20.90plus or minus0.65 43.44plus or minus2.30 1.31plus or minus0.11 m
T.C.L. 61.99
m: metacentric, sm: submetacentric, a: acrocentric; T.C.L.: Total Chromosome Length.
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