ested students of Mexican mammals.

Many of these bats are essentially tropical and the new records here
reported, extend the known geographic ranges to the northward on
either the east or the west coast of Mexico. Continued collecting,
especially by the intensive application of a variety of methods
including the use of mist nets, in the northern parts of the zone of
tropical vegetation can be expected to yield other species of tropical
bats beyond the limits of the ranges now known. Catalogue numbers
cited in parentheses are those of the Museum of Natural History.

_Chilonycteris psilotis_ Dobson.--Six specimens (36426-36431) taken
7 mi. W and 1/2 mi. S Santiago, at sea level, Colima, by J. R. Alcorn,
on March 17, 1950, extend the known range of this species 330 miles
westward from the most northwestern recorded occurrence at Alpuyeca,
Morelos (Davis and Russell, 1952:234). Use of the name psilotis is
explained by de la Torre (1955:697).

_Chilonycteris parnellii mexicana_ Miller.--One specimen (54934) from
10 mi. W, 2 mi. S Piedra, 1200 ft., Tamaulipas, taken by Gerd H.
Heinrich, on June 13, 1953, extends the known range of this species 76
miles east-northeast (Goodwin, 1954:4), previously the most northern
recorded occurrence in northeastern Mexico. Thirty other specimens
have been taken from four additional localities between El Pachon and
the place 10 mi. W, 2 mi. S Piedra.

_Pteronotus davyi fulvus_ (Thomas).--Ten specimens (57525-57534) from
Rancho Santa Rosa, 25 km. N, 13 km. W Cd. Victoria, 260 meters,
Tamaulipas, taken by W. Schaldach, V. Grissino, and R. Grimsley, from
December 26, 1953, to January 5, 1954, extend the known range of this
species 360 miles northward from Mirador, Veracruz (Davis and Russell,
1952:235). Another specimen from Tamaulipas in our collection is from
Rancho Pano Ayuctle, 8 mi. N Gomez Farias, 300 feet.

_Glossophaga soricina leachii_ (Gray).--Two specimens (54942-54943)
from 16 mi. W, 3 mi. S Piedra, Tamaulipas, taken by Gerd H. Heinrich,
on June 15, 1953, extend the known range of this species on the Gulf
Coast of Mexico northward 60 miles from 5 mi. NE Antiguo Morelos, near
El Pachon, Tamaulipas (de la Torre, 1954:114).

_Anoura geoffroyi lasiopyga_ (Peters).--Three specimens (36574-36576)
from 2 mi. SE Jalcocotan, 3000 ft., Nayarit, the first records for the
state, taken by J. R. Alcorn, on February 15, 1950, extend the known
range of the species 50 miles northward from San