A pregnant female (crown-rump length of embryo 5 mm) was captured in a
mist net set in a small banana grove on the south side of the Rio Mico,
El Recreo, 25 m, in the Caribbean lowlands, on 27 February 1968. This
specimen provides the first record of the big yellow-eared bat from
Nicaragua. The species was recently reported for the first time from
Costa Rica (Gardner _et al._, 1970:721); it was characterized as
uncommon in Panama by Handley (1966b:767). The one Costa Rican locality
of record also is in the Caribbean versant.
Selected external and cranial measurements of our female are: total
length, 58 mm; length of hind foot, 11 mm; length of ear, 16 mm; length
of forearm, 36.2 mm; weight, 12.3 gms; greatest length of skull, 21.1
mm; condylobasal length, 18.4 mm; zygomatic breadth, 12.3 mm; mastoid
breadth, 10.5 mm; breadth across canines, 4.6 mm; breadth of braincase,
9.4 mm; length of maxillary toothrow, 7.2 mm; length of mandibular
c-m3, 7.8 mm.