STUDIES IN TASMANIAN MAMMALS, LIVING AND 

 EXTINCT. 

 Number X. 



By 



H. H. Scott, Curator of the Launceston ]\Iuseum, 



and 



Clive E. Lord, F.L.S., Director of the Tasmanian Museum. 



(Read 26th February, 1923.) 



GIANT WALLABY. 

 Macropns anak, Owen. 



(Protemnodon anak.) 

 As is generally known, the anim.aL-; called by Owen 

 Protemnodon anak, Protenmodon oy, and in part also Sthcn- 

 nrus atlas, now figure upon the lists as Macropns anak and 

 Sthemiriis atlas. In the British Museum Catalogue of Fossil 

 Marsupials the late Richard Lydekker says at page 216: — 

 "The followng specimens include those referred by Owen to 

 "Protemnodon anak," and of the ten folios that follow, at- 

 tention is drawn to No. 38,753 — a left ramus from Queens- 

 land which Owen figured in Phil. Trans., 1874, plate 25, figs. 

 7 to 10. From the (recently acquired) material Mr. K. M. 

 Harrisson obtained at King Island, we select for description 

 a similar left ramus, that has no other skull associates, but 

 supplies us with various parts of the skeleton. The premolar 

 is missing, and the last molar has been badly mutilated, 

 but the fangs of both broken teeth supply useful data. In 

 total length, from the tips of the tusk to the end of the molar 

 series, the measurement is 127 mm. both in our specimen and 

 in Professor Owen's figure. The total length of the cheek 

 series is given by Lydekker as being 66 mm., and this appears 

 to agree exactly with our specmen if due allowance is made 

 for the missing teeth — restoration being based on the alveolar 

 evidence, and the comparative data supplied by Owen's 

 figure. If our ramus is placed over the wood cut, it covers 

 it, except for a slight reduction in .stoutness which is obviously 

 individual, and all its characters and measurements agree in 

 other directions. Seemingly therefore the fossil Wallaby 

 listed at the British Museum under No. 38,753 is here repre- 

 sented by a similar left ramus of the mandible, and the fol- 

 lowing parts of the skeleton now to be passed in review. 



