_Specimens._--_Boaco_: Santa Rosa, 17 km N, 15 km E Boaco, 300 m,
5. _Chontales_: 1 km N, 2.5 km W Villa Somoza, 330 m, 1. _Managua_:
Hda. San Jose, 2. _Matagalpa_: 2 km N, 6 km E Esquipulas, 960 m, 2.
The only previous record of occurrence for the small yellow-eared bat
from Nicaragua is based on an adult female from Hda. La Cumplida, 670
m, Matagalpa (Starrett and de la Torre, 1964:60).
Two individuals taken near Esquipulas in mid-March, a pregnant female
(crown-rump length of embryo 16 mm) and a male (testes 4 mm), were
captured in nets set across trails cut through secondary forest. The
wind was quite strong in this area at the time of our visit and only a
few other species of bats--_Glossophaga soricina_, _Artibeus
jamaicensis_, _A. toltecus_, _A. phaeotis_, _Uroderma bilobatum_,
_Sturnira lilium_, _Centurio senex_, and _Diphylla ecaudata_--were
taken in the same nets. The specimens from Boaco and Chontales were
captured over small streams bordered by gallery forest. Four females
collected at Santa Rosa on 21 March were pregnant; each carried a
single embryo that measured 5, 18, 21, and 30 mm in crown-rump length;
a male taken on the same date had testes that measured 3 mm.
Selected external and cranial measurements of two males, followed by
the average (extremes in parentheses) of six females are: length of
forearm, 31.1, 30.8, 30.8 (30.0-31.4) mm; greatest length of skull,
18.9, 18.9, 18.5 (18.1-18.8) mm; zygomatic breadth, 11.0, 11.0, 10.6
(10.4-10.9) mm; mastoid breadth, 9.5, 9.2, 9.2 (9.0-9.3) mm; length of
maxillary toothrow, 6.1, 5.9, 5.9 (5.7-6.1) mm.