TABLE 1.

Stages in the Postmetamorphic Masculinization of the Larynx

Postmetamorphic stage	Larynx weight (mg)	Median body weight (g)	SIRa (g)	Age (months post- metamorphic)
0	3–10	1.5	.98–1.8	0b
1	11–35	4.0	3.0–5.8	3
2	36–70	7.3	6.3–8.5	6
3	71–125	9.3	7.8–10.2	9
4	126–160	11.2	8.7–12.7	11
5	161–350	14.6	12.5–18.8	>12
6	>350	36.2	26.1–40.4	>24

^aSemi-interquartile range.

^bThe end of metamorphosis, tadpole stage 66 of Nieuwkoop and Faber (1956).