Table 1. Intra-male coefficient of variation for three rodent subfamilies.

Subfamily	CV head length	CV head width	CV head area	CV midpiece length	CV principal piece length	CV total flagellum length	CV total sperm length
Arvicolinae (N = 13)	6.45 (±0.151)*,*	8.00 (±0.241)†,*	10.00 (±0.300)*,*	7.97 (±0.303)†,*	4.12 (±0.132)†,†	2.96 (±0.114)†,†	2.78 (±0.107)†,†
Cricetinae (N = 5)	3.81 (±0.291)	7.19 (±0.987)	5.90 (±0.336)	4.69 (±0.686)	2.41 (±0.363)	1.19 (±0.137)	1.14 (±0.127)
Murinae (N =  8)	3.81 (±1.321)	5.05 (±1.260)	5.69 (±1.879)	3.51 (±1.477)	2.30 (±0.867)	1.79 (±0.836)	1.68 (±0.786)
All rodents	4.62 (±0.467)	6.37 (±0.504)	7.06 (±0.695)	5.11 (±0.614)	2.88 (±0.317)	2.04 (±0.285)	1.92 (±0.267)

Data are average (± S.E.M.) The superscripts in Arvicolidae parameters indicate whether there are differences (^† not significant; *P<0.05; PGLS ANOVA) when compared with Cricetinae (first position) or Murinae (second position).