Abstract
The maned wolf (Chrysocyon brachyurus, Illiger 1815) is the largest canid in South America. The objective of this work is to present a new border registry of Chrysocyon brachyurus, in the Department of Gualeguay, Province of Entre Ríos (32°59'51.78''S, 59°30'59.12''W); validate its membership in that taxon through the use of the COI molecular marker and review and comment on recent reports of specimens recorded further south of the known range of the species in a conservation context.
Highlights
Maned Wolf, Chrysocyon brachyurus (Illiger, 1815), is the largest canid in South America (Nowak and Paradiso 1983; Dietz 1984; Soler 2009a)
We present two new records of C. brachyurus in the Department of Gualeguay, Province of Entre Ríos, a road-killed specimen (32°59ʹ52ʺS, 059°30ʹ59ʺW) which we identified from a partial cytochrome oxidase subunit 1 (COI)-gene sequence, and another individual identified from a photograph (32°57ʹ12ʺS, 059°38ʹ38ʺW)
The road-killed individual had limbs ending in strong, non-retractable nails and characteristic foot pads, with fingers 3 and 4 fused at their base on both front and back limbs (Fig. 2), confirming their assignment to Chrysocyon brachyurus
Summary
Maned Wolf, Chrysocyon brachyurus (Illiger, 1815), is the largest canid in South America (Nowak and Paradiso 1983; Dietz 1984; Soler 2009a). Classified as a hypocarnivore (Wang et al 2004), its diet includes a similar proportion of fruits and small mammals and birds (Aragona and Setz 2001; Amboni 2007; Rodrigues et al 2007; Soler et al 2014; Rodden et al 2004; Queirolo and MottaJunior 2007). The adults can weigh up to 30 kg and have a length from head to tail of up to 132 cm (Nowak and Paradiso 1983; Soler 2009a). The pelage in adults vary from orange to golden red, and there is always a long mane and a characteristic white chin. The cubs have a much darker pelage and do not have a distinct mane or chin (Soler 2009a). The skull is elongated in dorsal and ventral view (especially in its rostral part), with sharp premolars and molars with wide surfaces to crush food
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