ause _floridanus_ is smaller than
_intermedius_. Indeed, the difference in size between _floridanus_
and _insularis_ is approximately the same as between _Lasiurus
borealis_ and _Lasiurus cinereus_.

_Measurements._--External measurements (all taken from specimens
preserved in alcohol) of the holotype, followed by those of two
other females, one from Laguna La Deseada, San Cristobal, Pinar del
Rio Province, and the other from Bayate, Guantanamo, Oriente
Province, are, respectively: Total length, 164, 161, 150; length of
tail-vertebrae, 68, 76, 77; length of hind foot, 12, 12, 13; length
of ear from notch, 20, 17, 19; length of forearm, 61.2, 62.6, 61.8.
The length of forearm of a study skin from San German (that
otherwise lacks external measurements) having wings spread is
approximately 55.4. For cranial measurements see Table 1.

_Remarks._--Four of the five specimens on which the name _L. i.
insularis_ is based differ to such a degree from mainland populations
of the species _L. intermedius_ that specific rather than subspecific
recognition for the Cuban bat might seem warranted. It is because of
the fifth specimen (USNM 254714) that we accord subspecific rank to
_insularis_. It is smaller than the other Cuban specimens and except
for longer condylocanine length, longer mandibular tooth-rows, narrower
interorbital region, and heavier dentition is indistinguishable in
measurements from the largest specimens of _L. i. intermedius_ from the
mainland. In addition, it appears not to have the enormously developed
sagittal crest of the other specimens of _insularis_ although
posteriorly the dorsal part of the skull (where the crest is most
prominent) is missing. USNM 254714 agrees with the other Cuban
specimens in having the mesostyle of M1 and M2 somewhat reduced and in
having a small M3 on which the cingulum and second commissure are
poorly developed, and this specimen is regarded as representative of
the lower size limits of the Cuban population.

The skull from San Bias was found in an owl pellet (see de Beaufort,
1934:316).

_Records of occurrence._--Specimens examined, 5, all from Cuba, as
follows: Pinar del Rio Prov.: Laguna La Deseada, San Cristobal, 1
(Poey Museum). Las Villas Prov.: Cienfuegos, 1 (KU, the holotype).
Camaguey Prov.: San Bias, 1 (Amsterdam Zoological Museum). Oriente
Prov.: San German, 1 (USNM); Bayate, Guantanamo, 1 (Ramsdem