f the length of the part of
the zygomatic arch anterior to the jugal, and (4) larger area of inner
face of jugal exposed when skull is viewed from directly above. Possibly
it is noteworthy that the specimens from Las Animas are larger than
Hooper's holotype and one topotype; this larger size is indicative of
intergradation with _G. b. lutescens_ as represented by the specimens
examined by us from Pueblo.

Our examination of an adult female, No. 128242 BS and a juvenal female,
No. 128243 BS, from 15 mi. E Texline, Texas, recorded by Bailey (N.
Amer. Fauna, 25:132, October 24, 1905) under the name _Geomys lutescens_
reveals that the specimens are referable to _Geomys bursarius
jugossicularis_ instead of to _Geomys bursarius major_ on the basis of
(1) mastoid part of tympanic bulla more inflated posteriorly, (2)
narrowness of frontals between posterior tongues of the premaxillae and,
(3) lighter color.

~Liomys irroratus irroratus~ Gray

When Hooper and Handley (Occas. Papers Mus. Zool., Univ. Michigan,
514:1-34, October 29, 1948) published a revised map (_op. cit._:3)
showing the geographic distribution of the subspecies of _Liomys
irroratus_ they did not mention a specimen from Agusinapa, Guerrero,
which inferentially from their map would be _L. i. irroratus_ although
it previously had been recorded as _L. i. torridus_ by Goldman (N.
Amer. Fauna, 34:55, September 7, 1911). We have examined the specimen
(70228 BS), which retains the upper deciduous premolar. Its long foot
(32 mm.) and broad cranium (13 mm.) are the bases for identifying the
specimen as _Liomys irroratus irroratus_ instead of _L. i. minor_, which
is smaller.

~Liomys irroratus minor~ Merriam

When Hooper and Handley (Occas. Papers Mus. Zool., Univ. Michigan,
514:1-34, October 29, 1948) published a revised map (_op. cit._:3)
showing the geographic distribution of the subspecies of _Liomys
irroratus_ they did not mention five specimens from Tlapa, Guerrero,
which inferentially from their map would be _L. i. irroratus_ although
these specimens previously had been recorded as _L. i. torridus_ by
Goldman (N. Amer. Fauna, 34:55, September 7, 1911). We have examined the
five specimens (70221-70225 BS), three of which retain the upper
deciduous premolars and two of which have the upper fourth premolar
unworn. The short, wide rostrum is unlike the long slender rostrum of
topotypes of _L. i. torridus_ of comparable age, and agrees with the
condition in to