VOL. XX, PP. 57-58 APRIL 18, 1907 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW SOUTH AMERICAN BAT. 

 BY A. CABRERA LATORRE. 



The subject of the present note is a large Noct'dio from eastern 

 Ecuador, very different from N. mastivus, and represented by 

 three specimens in the Museum of Natural Science of Madrid 

 (Spain). On account of the lack of valuable material for com 

 parison, it was previously taken for N. albiventer Spix; but 

 now, as I have in my private collection, through the kindness 

 of Marquis Doria, of Genoa, specimens of true albiventer from 

 Paraguay and Bolivia, it appears from close examination that 

 the Ecuadorian bat belongs to quite a different form. I name 

 this species: 



Noctilio zaparo* sp. nov. 



Type from Ahuano, on the Napo river, eastern Ecuador, c? adult. Col 

 lected by Dr. M. Timenez de la Espada, May, 1865. No. 691, Museum of 

 Natural Science of Madrid, Spain. 



Diagnosis. Closely allied to N. albiventer, but larger and stouter, and 

 with the ridges on the skin of the lower jaw much reduced. 



External Characters. Forearm about 68 mm., and, notwithstanding, com 

 paratively short. In N. albiventer, with wings folded close to the body, the 

 forearms exceed the muzzle 6-8 mm.; in zaparo, the carpus does not reach 

 to the nose level. The wing indices are about the same in both species. 

 Ears comparatively shorter in zaparo, hardly reaching the external rim of 

 the nostrils when laid forward, whereas in albiventer they slightly exceed 

 the muzzle tips. Three semi-oval cutaneous ridges on the chin, as usual, 

 but the skin beneath the lower jaw is smooth, with only five or six short, 

 vertical furrows, almost imperceptible without a very close inspection, im 

 mediately behind the chin ridges. 



Color. Upper parts of body beautiful golden reddish fawn. Under sur 

 face pale reddish yellow. The sides, immediately below the plagiopata- 

 gium, bright yellowish red. Membranes brown, with some irregular, 

 broad, pale streaks parallel to the digits. The coloration is not altered by 

 the alcohol. 



* " Zaparo," with the accent on the first a, is the name of the Napo river Indians. 

 12 PROG. BIOL. Soc. WASH., VOL. XX, 1907. (57) 



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