1953. _Heterogeomys hispidus negatus_ Goodwin, Amer. Mus.
Novit., 1620:1, May 4, type from Gomez Feras [Farias], 1300
ft., Tamaulipas.
_Distribution in Tamaulipas._--Known only from the vicinity
of the type locality.
Specimens of this pocket gopher were taken in large Macabee traps, at
night with the aid of a dog, and by natives using slingshots. Mounds of
_H. hispidus_ were common two miles west of El Carrizo near banana
trees; the mouths of burrows were four to five inches in diameter. Two
females collected at this locality on April 16 and 17 were lactating.
Specimens examined of _H. hispidus_ from Tamaulipas resemble the
description of _H. h. negatus_ more than that of _H. h. concavus_, and
are referred, therefore, to _negatus_. I assume, on geographic grounds,
that the individuals reported by Hooper (1953:5) as _concavus_ are
_negatus_; they are here referred to as _negatus_. If this referral is
correct, the subspecies _concavus_ probably does not occur in
Tamaulipas.
_Records of occurrence._--Specimens examined, 6: Ejido Santa
Isabel, 2 km. W Pan-American Highway, 2000 ft., 1; 2 km. W
El Carrizo, 1; 5 km. W El Carrizo, 4.
Additional records: Rancho Pano Ayuctle (Hooper, 1953:5);
Gomez Farias (Goodwin, 1953:1).
=Cratogeomys castanops=