PERAMELID^. 255 



consisting of a pair of V-shaped outer columns and a long conjoint 

 inner column : first three lower true molars composed of two lobes, 

 of which the first carries three cusps arranged in a triangle ; last 

 molar in both jaws simpler. Hind feet syndactylous, as in the 

 Macropodidca ; terminal phalangeals cleft ; an entepicondylar fora- 

 men to the humerus ; canines sometimes with grooved or double roots. 



Genus PERAMELES, Geoffroyi. 



Limbs subequal in length ; crowns of molars short and nearly 

 straight ; auditory bulla single. 



3Pcramclc)^ iia^uta, Geofiroj ^. 

 Syn. Perameles tenuh'ostris, Owen ^. 

 A large species with elongated muzzle. 

 Hah. iS^ew South Wales. 



The following specimens are from the caves of the Wellington Valley^ 

 New South Wales, and luere presented, hy the Trustees of the 

 Australian Museum, 1870. 



42639. Part of the middle of the cranium, showing the last six 

 cheek-teeth of the left side, in a damaged condition. 



42671. Fragment of the left maxilla, containing the unworn m. 3 



and m 4. 



42670. Part of the right ramus of the mandible, showing the canine 

 and cheek-teeth. This specimen, which cannot be distin- 

 guished from the mandible of the existing form, agrees 

 precisely with the fossil ramus from the Wellington Caves, 

 figured by Owen in the ' Extinct llammals of Austraha,' 

 pi. V. figs. 10, 11, under the name of P. tenuirostris. 



42670 a. Four fragments of mandibular rami with teeth. 



43884. Three fragments of mandibular rami without teeth. 



42675. Five specimens of the humerus. The length of this bone is 

 0,042. 



42672. The right tibia, wanting the distal epiphysis. 



42672 a. Three imperfect specimens of the tibia. 



^ Bull. Soc. Philom. Paris, vol. iii. No. 80, p. 24d~errori,n 149— (1803). 



* Ann. d. Museum, vol. iv. p. 62 (1804). 



3 Extinct Mammals of Australia, p. 107, pi. v. figs. 10, 11 (1877). 



