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Identifier: smithsonianmisce691921smit Title: Smithsonian miscellaneous collections Year: 1862 (1860s) Authors: Smithsonian Institution Subjects: Science Publisher: Washington : Smithsonian Institution Contributing Library: Smithsonian Libraries Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image: , were recorded by Allen (1904, p. 79) ; six specimensfrom Chepigana are listed by Anthony (1916, p. 373). Specimens examined : Boqueron, 6; Cana, 1 ; Chepigana, 61;Gatun, 1. ARTIBEUS JAMAICENSIS JAMAICENSIS LeachJamaican BatArtibcus jamaicensis Leach, Trans. Linn. Soc, Vol. 13, 1821, p. 75. Typefrom Jamaica. The Jamaican bat is doubtless common at the lower elevationsthroughout Panama. It is a large robust species with rather indis- 1 Collection Amer. Mus. Nat. Hist. NO. 5 MAMMALS OF PANAMA—GOLDMAN 205 tinct whitish facial stripes of which a supraorbital pair usuallyextend from the nose pad to near the inner sides of the ears, and apair, faintly indicated (or absent), reach from near the angle of themouth toward the ears. The forearm measures about 62 millimeters.Examination of the skull is necessary in order to distinguish thisbat with certainty from Artibeus planirostris planirostris. It lacksthe tiny third upper molar present at the posterior end of the seriesin the latter form.

Text Appearing After Image: Fig. 16.—Artibeus jamaicensis jamaicensis.No. 203082, U. S. Nat. Mus. About nat. size. Dr. Knud Andersen (1908) in a revision of the genus states(p. 266) that to prevent wrong identification it is important toemphasize that Central America is inhabited by two races, whichought not to be (but hitherto have always been) confused, viz., thesmaller (truly indigenous) A. j. jamaicensis and the larger A. j.pahmrum (an immigrant from south). In similar language hereiterates (p. 278) that in Central America and S. Mexico A. j.palmarum meets the considerably smaller A. j. jamaicensis. Thereis no doubt whatever that the latter race is the truly indigenous formin the region north of Panama, and that A. j. palmarum is a lateintruder from the south into the same region. Dr. Andersenspositive assertions, made after a careful study of the group, shouldbe given considerable weight; but since the forms as recognized byhim appear to be characterized by average differences only, hisinteresting conclus

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