mens 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.

Chiroderma villosum jesupi J. A. Allen, 1900

_Specimens._--_Chinandega_: 6.5 km N, 1 km E Cosigueina, 10 m, 2;
4.5 km N Cosigueina, 15 m, 7; Hda. Bellavista, 720 m, Volcan Casita,
5; San Antonio, 35 m, 2. _Rivas_: 2 km N, 3 km E Merida, 200 m,
Isla de Ometepe, 1.

This species has been reported in Middle America from as far north as
southern Mexico. It evidently is uncommon in Costa Rica (see Gardner
_et al._, 1970:722) and Panama (Handley, 1966b:767). Our material,
all collected from mist nets and consisting of 16 specimens from the
northwestern department of Chinandega and one from Isla de Ometepe in
Lago de Nicaragua, constitutes the first report of this bat from
Nicaragua.

Four of five females taken in early March were pregnant; embryos
averaged 26.0 (25-29) mm in crown-rump length. Four females taken in
July carried embryos 14, 20, 23, and 25 mm in length. Testes of five
adult males captured in March and April had an average length of 4.4
(3-7) mm, whereas those of two taken in July were 3 mm in length.

Artibeus toltecus hesperus Davis, 1969

When Davis (1969) named _A. t. hesperus_, he assigned specimens only
from as far south as El Salvador to the new subspecies, referring the
three Nicaraguan examples of the species at his disposal to the nominal
race. On the night of 6-7 April 1968, one of us (Smith) netted bats on
the south part of Isla de Ometepe at a place 2 km N and 3 km E Merida,
200 meters in elevation. One net was set across, and another parallel
to, a small, boulder-strewn stream; the surrounding area was planted to
coffee and had a good canopy of tall deciduous trees. Among the bats
captured at this location were 10 _A. toltecus_ that are referable to
the subspecies _hesperus_, judging by