Woodall's Slender Opossum

materials_examined

Holotype. USNM 393532 consists of skin and skull of an adult female collected on 14 June 1968, Ronald H. Pine field no. 5054. Type locality. Nova Área Experimental, Utinga (1 º 27 ’ S, 48 º 29 W; the wooded area surrounding the Belém waterworks), Pará, Brazil. Geographic distribution. It occurs on the right bank of the Xingu River, including the Marajó Island in the state of Pará, extending east to the state of Maranhão and south to the state of Tocantins, Brazil (Figure 5). Amended diagnosis. Dorsal coloration usually dark brown; tail length (LT: 92 – 158 mm) relatively longer in relation to head and body length (HBL: 70 – 120 mm); ventral coloration white, with narrow lateral bands of graybased and white-tipped hairs arranged irregularly, which may or may not join on the throat and / or mid-chest and usually do not extend to the inner surface of the hind limbs; supraoccipital rounded in dorsal view (due to its con-vex shape); M 3 with posterior portion of the stylar shelf more labially designed than the anterior portion (occlusal view); upper molars with preprotocrista and anterolabial cingulum seperated, not forming a continuous shelf along the anterior margin of the tooth crown

Taxonomic review of the slender mouse opossums of the “ Parvidens ” group from Brazil (Didelphimorphia: Didelphidae: Marmosops), with description of a new species