In South America, Megalobulimus includes a number of threatened species, as well the largest land snails on the continent. The activity patterns and reproductive aspects of this group have not been documented. This work describes the daily and seasonal activity patterns and reproduction of M. paranaguensis. We maintained specimens in the laboratory for one year, and we quantified their behaviour for one hour at four different times of the day (0 h, 6 h, 12 h and 18 h) during three days in four months (August, September, April and May). The number of postures, hatching rate, time of hatching since oviposition and mortality rate among juveniles for each month were also quantified. Megalobulimus paranaguensis was more active in August, and had a egg laying peak one month after. Fifty-one eggs were laid by 12 captive individuals throughout the year, with a mean value of 4.25 eggs per individual. The hatching rate was 80.39%, and the time of hatching since oviposition was 56.7 ± 4.3 days. In two eggs, we observed the presence of twins. The mortality rate among juveniles was low (9.30%) indicating that rearing land snails in captivity has the potential to be an important and viable tool for the management and conservation of these organisms.

在南美，大叶猴包括许多受威胁物种，以及该大陆上最大的蜗牛。该组的活动模式和生殖方面尚未记录。这项工作描述了巴拉圭分支杆菌的日常和季节性活动模式和繁殖。我们将标本在实验室中保存了一年，并且在四个月（八月，九月，四月）的三天中，在一天的四个不同时间（0小时，6小时，12小时和18小时）量化了他们一小时的行为。和五月）。还量化了每个月的未成年人的姿势数量，孵化率，自产卵以来的孵化时间和死亡率。巴拉那巨在八月份更活跃，一个月后产卵高峰。一年中有12个圈养的个体产下51个卵，每个个体的平均值为4.25个卵。孵化率为80.39％，自产卵以来孵化时间为56.7±4.3天。在两个鸡蛋中，我们观察到双胞胎的存在。青少年的死亡率很低（9.30％），表明人工饲养的蜗牛有可能成为管理和保护这些生物的重要且可行的工具。