ISO 



TASMANIAN WOLF 



the upper incisors are never less tlian three, and may be as many 



as five in the upper jaw and 

 six in the lov^rer. The canines 

 are trenchant. There is no 

 caecum. 



The genus Tliylcwinus con- 

 tains but a single species, 

 which is now limited to Tas- 

 mania, and is generally known 

 as the Tasmanian Wolf. It has 

 the build of an ordinary Wolf, 

 and is of about the same size. 

 The hinder part of the body is 

 marked with a series of black 

 transverse bands. The hallux 

 is entirely wanting ; the pouch 

 opens backwards. The mar- 

 supial bones are minute and 



unossified. The dental formula is 1 1- C l Pm f M A = 46. There 



Fig. 77.— Front view of skull of Koala (Phas- 

 colarctos cinereus), illustrating Diprotodont 

 and herbivorous dentition. (From Flower.) 



SO ^'CO 



Fig. 78. — Longitudinal section of the skull of the Thylaeine (Thylacinns eynocephalus]. 

 X J. a. Angular process of mandible ; A S, aUspheuoid ; BO, basioccipital ; BS, 

 basisphenoid ; cd, condyle of mandible ; ET, ethmoturbinal ; E.(. 0, exoccipital '; 

 Fr, frontal ; MM, ossified portion of mesethmoid ; AIT, maxilloturbinal • il/.c, 

 maxilla ; Na, nasal ; OS, orbitosphenoid ; Pa, parietal ; Per, periotic ; PI, pala- 

 tine ; PMx, premaxilla ; PS, presphenoid ; Pt, pterygoid ; SO, supraocc'ipital ; 

 Sq, squamosal ; Vo, vomer. (From Flower's Osteolugy.) 



are four mammae. This animal, now confined to Tasmania, 



