Sexual Dimorphism and Female Reproductive Characteristics of Rana guentheri

[Objective] This paper aimed to study the sexual dimorphism of Rana guentheri. [Method]Sixty-seven Rana guentheri were collected in Zhaoqing area to measure their morphological indexes,count the brood amount of female Rana guentheri and study sexual dimorphism and female reproductive characteristics.[Result]The average snout-vent length of male Rana guentheri was( 75. 07 ± 1. 21) mm and the average snout-vent length of female Rana guentheri was( 78. 67 ± 1. 23) mm. The snout-vent length and weight of female Rana guentheri were significantly different from that of male Rana guentheri,which illustrated that snout-vent length and body weight of Rana guentheri had significant sexual dimorphism. The sexual dimorphism index was 0. 05. The local morphological indexes of Rana guentheri were positively related with the snout-vent length. The average brood amount of female Rana guentheri was 4 916. The snout-vent length and body weight were positively related with the brood amount of female Rana guentheri. [Conclusion] Rana guentheri in Zhaoqing area had obvious sexual dimorphism.