amarelado (fig. 68).Variacao: dos sete exemplares examinados, MN 1308 e MN 1309, da Restinga da Marambaia e Teresopolis respectivamente apresentam toda a pelagem mais clara, provavelmente devido a um desbotamento provocado pela permanencia, durante algum tempo, em formol ou alcool, antes da preparacao da pele. O MN 6221 apresenta toda a pelagem mais amarelada, pelos com as bandas amarelas mais pigmentadas (fig. 68).Comprimento dos pelos: aristiformes, dorsais e laterais 6 mm e ventrais 5 mm; setiformes, dorsais e laterais 4 mm e ventrais 2 mm.Medidas corporais: cabeca e tronco: 77-110 mm; cauda: 43-50 mm; pe: 14-15 mm; orelha: 12-14 mm.Monodelphis iheringi, Rio Grande do Sul - foto: Flavio SilvaM. iheringi, foto Thomas PuttkerM. iheringi, foto Thomas PuttkerEspecimes examinadosTotal: 21. BRASIL - Rio de Janeiro: Ilha Grande, 2 M (MZUSP 1979, MN 24400); Jacarepagua, 1 M (MN 24545); Parati, 2 M (MN 8203, 6221), 2 ? (MN s/n, s/n); Restinga da Marambaia, 1 M (MN 1308); Rio de Janeiro, 1 M (MN 10305), 1 F (MN 24546), 1 ? ( MN s/n); Teresopolis, 1 F (MZUSP 1855). - Sao Paulo: Iguape ?. - Santa Catarina: Colonia Hansa, 3 M (MZUSP 847, 873, 874); Hammonia, 1 M (MZUSP 3417); Joinville, 2 M (MZUSP 3421(a), 3421(b); 1 ? (MZUSP MB 2).Monodelphis gardneri Solari, Pacheco, Vivar and Emmons, 2012Descricao original em ingles:Holotype.MUSM 24216, a skin, skull, and alcoholic carcass, all in good condition, of an adult female caught by Elena Vivar (field number EV 1570) on 11 Sep 2007.Type locality.Abra Esperanza, San Alberto (Fig. 1, black star), Oxapampa Province, Pasco Department, Per u, elev. 2784 m; GPS coordinates, taken in the field, are 118560S, 718170W.Paratypes.We designate seven specimens as paratypes: one trapped near the type locality, at Estacion El Cedro, San Alberto, 2400 m (MUSM 11334, adult male, fluid specimen); three from the eastern slope of the Cordillera Carpish, Hua nuco Department (LSUMZ 14019, adult male, skin, skull and skeleton; MUSM 18943, adult male, fluid specimen; 18944, sub-adult female, skin and skull); two from Cordillera Vilcabamba, 2050 m, Jun n Department (MUSM 13007, adult female, skin, skull and alcoholic carcass; USNM 582109, adult male, skin and skull); and one from La Convenci on, Wayrapata, 2445 m, Cusco Department (MUSM 14631, juvenile female, skin, skull and skeleton).Distribution.Montane forests on the eastern slope of the Andes in central and southern Per u (Fig. 1, black diamonds). At present, M. gardneri is known from the departments of Hua nuco, Pasco, Jun n, and Cuzco, from 1785 to 2800 m elevation.Diagnosis.A species of Monodelphis characterized by three conspicuous blackish stripes on the back; median stripe extending from between ears to base of tail, wider at mid-back, with two shorter, prominent lateral stripes extending from shoulders to base of tail. Size small, especially as reflected in head-and-body length (76100 mm) and condylobasal length (21.827 mm); tail absolutely short (42.553 mm) but relatively long (LT 4952% of HBL). Braincase globular; infraorbital foramen dorsal to M1; alisphenoid portion of bulla relatively inflated, with anterior elongated projection or alisphenoid strut forming a secondary foramen ovale (see Voss & Jansa 2003); (primary) foramen ovale almost