1866. _S[cotophilus]. miradorensis_ H. Allen, Proc. Acad.
Nat. Sci. Philadelphia, 18:287, type from Mirador, Veracruz.
1812. _Eptesicus fuscus miradorensis_, Miller, Bull. U. S.
Nat. Mus., 79:62, December 31.
_Distribution in Tamaulipas._--Southern part of state, north
at least to Miquihuana.
Specimens from Miquihuana, Palmillas, and Nicolas were shot in flight
at dusk; those from the Sierra de Tamaulipas were collected in a mist
net. Five females, all taken in June, were lactating.
Judging from Hall and Kelson's (1959:185) distribution map for the
species, two subspecies, _E. f. fuscus_ and _E. f. miradorensis_,
possibly occur in Tamaulipas, the former in the north and the latter in
the south. Comparison of specimens presently available from the state
(all from the southern part) with typical individuals of the two
subspecies mentioned reveal that they resemble _miradorensis_ to a
greater degree than _fuscus_ and they accordingly are assigned to the
former. In measurements, the Tamaulipan specimens agree closely with
_miradorensis_; in color, some resemble _miradorensis_ but others
approach _fuscus_, possibly indicating intergradation between the two
subspecies in the material at hand. Probably _E. f. fuscus_ will be
found in the northern part of the state.
_Measurements._--Average and extreme measurements of nine
females from the Sierra de Tamaulipas and three males, two
from Miquihuana (55137, 55138) and one from Palmillas
(55139), are respectively: 121.3 (111-127), 115, 107, 115;
51.9 (50-56), 50, 45, 52; 10.9 (9.5-11.0), 10, 10, 11; 17.8
(17-18), 18, 18, 18; length of forearm, 49.6 (48-52.6),
48.9, 49.1, 49.1; length of tibia, 18.8 (18.2-19.3), 20.5,
17.3, 18.0; condylobasal length, 18.9 (18.5-19.3), 19.3, --,
18.8; zygomatic breadth, 13.1 (12.7-13.5), --, 13.0, 13.3;
interorbital constriction, 4.2 (3.7-4.4), 4.0, 4.3, 4.1;
length of maxillary tooth-row, 7.3 (7.1-7.5), --, 7.2, 7.2.
Five lactating females weighed 20 (17-23) grams, and three
males 17.5 (17-8) grams.
_Records of occurrence._--Specimens examined, 17:
Miquihuana, 6200 ft., 2; 14 mi. N, 6 mi. W Palmillas, 5500
ft., 1; Nicolas, 56 km. NW Tula, 5500 ft., 1; Sierra de
Tamaulipas, 2 mi. S, 10 mi. W Piedra, 1200 ft., 12; Joya
Verde, 35 km. SW [Cd.] Victoria, 3800 ft., 1.
Additional record: Aserradero del Paraiso (Goodwin,
1954:186).
=Lasiurus borealis=