Tonatia evotis and Tonatia silvicola

Abstract

Forearm more than 45; greatest length of skull more than 24. Limbs, ears and noseleaf without wart-like granulations 3 3 (2) Size large, forearm more than 55. Ears less than 32. Postorbital constriction more than 5. Faint pale stripe on top of head T. bidens Size variable, if forearm more than 50, then ears more than 32. Postorbital constriction less than 5. No pale stripe on top of head 4 4 (3) Underparts pure white except chin and sides of venter. Present only in South America T. carrikeri Underparts dusky to pale. If there is any white, it is only a small gular patch. From southern Mexico to northern Argentina 5 5 (4) Maxillary toothrow 9.5 or more; pale patches at bases of ears. Underparts paler, frequently with a white gular patch T. silvicola Maxillary toothrow 9.2 or less. No pale patches at bases of ears. Underparts dusky, contrasting only slightly with dorsum T. evotis