Sebastian, Jalisco
(Sanborn, 1933:27).

_Choeronycteris mexicana_ Tschudi.--Three specimens (60176-60178) from
4 km. N Joya Verde, near Huisachal, 4000 ft., Tamaulipas, taken by W.
Schaldach, on July 17, 1954, extend the known range of this species
eastward into the state of Tamaulipas. Eastern marginal records in
northeastern Mexico were 1 mi. S and 4 mi. W Bella Union, 7000 ft.,
Coahuila (Baker, 1956:174), and Hacienda Capulin, San Luis Potosi
(Dalquest, 1953:27).

_Centurio senex_ Gray.--One specimen (54958) from 14 mi. W, 3 mi. S
Piedra, Tamaulipas, extends the known range of the species 58 miles
northward from Pano Ayuctle, near Gomez Farias, Tamaulipas (de la
Torre, 1954:114).

_Natalus mexicanus saturatus_ Dalquest and Hall.--Two specimens
(54999-55000) from the Sierra de Tamaulipas, 14 mi. W, 3 mi. S Piedra,
Tamaulipas, taken by Gerd H. Heinrich, on June 12, 1953, extend the
known range of this species 61 miles northward from El Pachon,
Tamaulipas (Goodwin, 1954:5). Forty-one other specimens have been
taken from three localities between El Pachon and the new record
station mentioned above.

_Rhogeessa parvula tumida_ H. Allen.--One specimen (55192) from 4 mi.
N La Pesca, Tamaulipas, taken by Gerd H. Heinrich, on May 24, 1953,
extends the known range of the species on the east coast of Mexico
northward 115 miles from 10 kms. WSW Ebano, Veracruz (Dalquest,
1953:58), and also northeastward 115 miles from Santa Maria,
Tamaulipas (Goodwin, 1954:6). Another new marginal locality for this
species, represented by 39 specimens in our collection, is 10 mi. W,
2 mi. S Piedra, 1200 ft., Tamaulipas.

_Baeodon alleni_ (Thomas).--A specimen (68773) from 6 mi. W and
2 mi. N Nejapa, Oaxaca, taken by A. A. Alcorn, on August 6, 1955,
extends the known range of this species southeastward 100 miles from
Cuicatlan, 590 meters, Oaxaca (Hall, 1955:2). Until recently this
species was known from the type locality only.

_Lasiurus borealis ornatus_ Hall.--Sixteen specimens (55325-55340)
from near Piedra, 1200 to 1400 ft., Tamaulipas (1 from 10 mi. W,
2 mi. S; 1 from 14 mi. W, 3 mi. S; and 14 from 16 mi. W, 3 mi. S
Piedra) tend to fill a gap in the known distribution of this species.
Previously it was known from Matamoros, Tamaulipas (Miller, 1897:108),
to the north and from Bledos, San Luis Potosi (Dalquest, 1953:61), to
the south. Assignment to the subspecies _L. b. ornatus_ is tentative
and is based primarily on the scanty cove