1951. _Peromyscus ochraventer_ Baker, Univ. Kansas Publ.,
Mus. Nat. Hist., 5:213, December 15, type from 70 km. (by
highway) S Ciudad Victoria, 6 km. W Pan-American Highway at
El Carrizo, Tamaulipas.
_Distribution in Tamaulipas._--Vicinity of the type
locality.
The series of specimens examined was the same used by the original
describer of the species. He (1951:214-215) pointed out that the mice
were taken in junglelike forest among rocks and adjacent to logs.
Burrows extended beneath large blocks of limestone, and each burrow
where a mouse was caught was marked by a pile of excavated earth
resembling a tiny mound left by a pocket gopher. These burrows were at
an elevation of approximately 2800 feet above sea level on the steep
sides of a small hill in an area where the vegetation was intermediate
between that of the arid and humid subdivisions of the tropical region.
Each of two females, captured on January 13, carried five placental
scars; one of the females was lactating.
_Records of occurrence._--Specimens examined, 24, from the
type locality.
Additional records (Goodwin, 1954:12): Gomez Farias; Rancho
del Cielo; Joya de Salas.
=Baiomys taylori taylori= (Thomas)