Monotremata. 87 



These small mammals are arranged in the Table-case with Table-case, 

 others from the Tertiaries of Prance and from the caves of "No. 14a. 

 Brazil, kc. Drawings of many of the recently-discovered 

 American forms have also been added to this case. 



Sub-class III. — Prototheria or Ornithodelphia. 

 Order XI.— MONOTREMATA. 



Remains of Echidna were met with in a fossil state in Table-case, 

 1867 by Mr. Gerard Krefft; more recently, in 1883, Mr. E. P. *°' ***" 

 Ramsay, F.L.S., Curator of the Australian Museum, Sydney, Ecludna ' 

 discovered the fossil humerus and three other bones of an 

 exceedingly large Echidna (E. Ramsayi, Owen) in the breccia of 

 the "Wellington Caves, New South Wales, and sent to Prof. 

 Sir Richard Owen plaster casts of the same for description. 

 These are exhibited in Table-case, No. 14a. 



The Multituberculata (seep. 83) may belong to this sub-class. 



[Xote, explanatory of small italic letters attached to figures of American 

 Jurassic Mammals, given on pp. 79 and 85, Pigs. 99 and 108. 



Fig. 99, p. 79, a, canine tooth; h, condyle; c, coronoid process; a, angle; 

 ff, mylohyoid groove ; s, symphysial surface. 



Fig. 108, p. 85, l, 2, 3, the incisors ; a', fix-st premolar ; «' , second premolar ; 

 I, fourth premolar ; h\ third premolar ; c, second true molar ; m, 

 malar arch ; -s, suture with maxillary. In the loiver jaws, a, incisor 5 

 b, condyle ; c, cox'onoid process ; r, x-oot of incisor.] 



