LA SELVA-BRAULIO CARRILLO MAMMALS 123 



Fig. 96. Cloud forest deer mouse, Peromyscus nudipes. Photo by B. L. Clauson. 



Table 3. Reproductive characteristics of 10 adult (weight > 40 g) female 

 Peromyscus nudipes /rom Heredia Province, Costa Rica.^ 



Date of 





capture 



Reproductive characteristics 



4 April 1986 



3 placental scars (2L-1R) 



4 April 1986 



2 embryos x 5 mm (IL-IR) plus old placental scars 



5 April 1986 



2 embryos x 12 mm (2R) plus old placental scars 



5 April 1986 



2 embryos x 6 mm (IL-IR) 



7 April 1986 



2 recent placental scars (IL-IR) plus old placental scars, lactating 



8 April 1986 



3 embryos x 8 mm (1L-2R) 



8 April 1986 



3 embryos x 8 mm (2L-1R) 



8 AprU 1986 



pregnant female; released 



10 April 1986 



3 recent placental scars (L), lactating 



18 Aprn 1986 



uterus enlarged, lactating 



'Additionally, two subadult females captured during this time period showed no sign of reproductive 

 activity. All females weighing more than 40 g were reproductively active. 



