Small Mammals Of The Mayo River Basin In Northern Peru, With The Description Of A New Species Of Sturnira (Chiroptera: Phyllostomidae) Author Velazco, Paúl M. Division of Vertebrate Zoology (Mammalogy) American Museum of Natural History Author Patterson, Bruce D. Integrative Research Center Field Museum of Natural History text Bulletin of the American Museum of Natural History 2019 2019-04-05 2019 429 1 69 journal article 0003-0090 Marmosops ( Marmosops ) caucae (Thomas, 1900) VOUCHER MATERIAL: Tingana : 1 adult female ( FMNH 203324 ), 2 juvenile males ( FMNH 203326 ; MUSM 39248 ) ; see table 2 for measurements. IDENTIFICATION: We follow Díaz-Nieto et al. (2011) and Díaz-Nieto et al. (2016) in recognizing M. caucae as a species distinct from M. impavidus . Our specimens conform in all respects to the morphology and measurements described by Díaz-Nieto et al. (2011) for M. caucae (e.g., interdigital pad 4 and hypothenar pad of hind foot in contact, two antebrachial vibrissae, palatine fenestrae present, subsquamosal foramen constricted anteroposteriorly, absence of accessory cusps on the upper canine). REMARKS: The adult female was caught in a Victor rat trap in an agricultural field. The two adult males were caught in Victor rat traps in a renacal (flooded forest of Coussapoa trinervia ).