iqG SMTTTTSONIAN MTSCKIJ-ANKOHS COIJ.KCTIONS VOT-. 69 



the railroad lino soxcral niilos below the mines contains hnndretls 

 during;" ihe day, and is also inhabited by Dcsiiiodus rotiiiidiis iHiiiinits, 

 Glossopluv^a soriciiia Icachii. Loncliopliylla robustu, l.onchophylla 

 concava and Hemidcrma castaneiim. 



Speciini'iis collected by W. W. Brown. Jr., on San jMi^nel Island 

 and at Hn^aba, Chiritini. have been recorded by Banjos (1901, p. 044, 

 1902, p. 50) who remarks that the series of 13 specimens from the 

 latter locality " presents a wide rani;e in the color of the npjier parts, 

 varying' from hair-brown to rnsset, with every intermediate shade." 

 Seventeen specimens obtained at Boqueron by J. 11. Batty are listed 

 by Allen (1904, p. 78). I'.xamples taken by the same collector are 

 recorded by Thomas (igtw/. p. 39) from the following' small islands 

 ofl" the south coast of western l*anania ; Scvilla, Jicaron, Gobernador, 

 Brava, Insolita, and Cebact*. llahn (1907) in his revision of the 

 genns, published records of specimens examined by him from 

 Panama (city), Boqueron, and Colon. Seven examples from Panama 

 (city), as shown by llahn (h)07, p. iij) had been erroneously 

 assigned by liangs ( U)o(). p. -M3) to Hemidcrma casfnnciim. 



Specimens examined: Balboa, i; Bas Obispo, u; lM)([ueron, 3'; 

 Bugaba, 13'; Cana, 23; Corozal, 13; Empire, 8; Old Panama, jo; 

 Panama (city), 9"; Porto Bello, 6; Real de Santa Maria, i '; Rio 

 Chilibrillo (Chilibriilo eaxc, near Alhajuela), lo"; Rio Trinidad 

 (Agua Clara), 4; Kio Indio. 1 ; San Miguel Island. 1 ; Tacarcuna, 

 4' ; Tapalisa. i.' 



HEMIDERMA CASTANEUM (H. Allen) 



Clu-sUmt Short-tailed Bat 



i'arollia lastmu-a 11. Ai.1.1 n, Proc. Amer. Philos. Soc, \'ol. 18, p. 19, 

 I'cbrijary _'5, i8go. lypo from Costa Rica. 



The chestnut short-tailed bat resembles Hemidcrma perspieillatmn 

 acteciiiu very closely, but is distinguished by smaller size, the forearm 

 measuring' about },y millimeters instead of about 42 millimeters, as 

 in the latter species. The dilTerence in si/e seems still more apparent 

 when skidls of the two species are compared. The smaller Hemi- 

 dcrma is rare while the larger is probably the most abundant bat 

 throughout the region umler consideration. 



In a limestone cave at about 1,500 feet altitude on the mountain 

 side near Cana two of these bats were knocked down along with 

 numerous examples of Hemidcrma p. asiccum. Although they occu- 



H'olloctioii Amcr. iMiis. Nat. Hist. 



H\>lUctii>n Mus. Comp. Zool. 



' I'ivo in a>lUHiioii Ahum-. Miis. Nat. Hist. 



' 



