Solórzano A, Cerdas L
Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José.
Rev Biol Trop. 1988 Nov;36(2A):221-6.
In Costa Rica, rattlesnakes mate during the early dry season (December and January) and births occur in the early rainy season (May-July). Gestation is therefore about 6 months. The mean number of offspring is 22.9 and is significantly correlated with the size of the female. Newborn rattlesnakes are 27.5-43.0 cm in length and weight 11.4-46.3 g. They are relatively docile. Adult males are longer and heavier than females. Females seem to have their first litter when their size exceeds 120 cm.
在哥斯达黎加，响尾蛇在旱季初期（12月和1月）交配，幼蛇在雨季初期（5月至7月）出生。因此，妊娠期约为6个月。平均产仔数为22.9只，且与雌蛇的体型显著相关。新生响尾蛇体长27.5 - 43.0厘米，体重11.4 - 46.3克。它们相对温顺。成年雄蛇比雌蛇更长、更重。雌蛇似乎在体长超过120厘米时首次产仔。
