MONOTREMATA. 295 



47795. The left half of a mandibular symphysis, with the anterio 



teeth. 



48404. Pragment of a mandibular ramus, with five cheek-teeth. 

 48406. Part of a mandibular ramus, showing three or four teeth. 



48248. Part of a mandibular ramus, with one cheek-tooth. 



48389. Part of a left mandibular ramus, with worn teeth (? Amhlo- 

 therium or AcJvjrod on). 



47796. Part of a mandibular ramus, with the cheek-teeth in a broken 



condition. The teeth have comparatively broad crowns, 

 and the specimen may possibly belong to BoJodon {supra 

 p. 203). 



48361. An imperfect humerus. 



48249. A smaller humerus. 



48250. Two femora, agreeing in relative size with the preceding. 



B. From the Lower Jurassic Slate of Stonesjield, Oxfordshire. 



32752. The femur and humerus of a small mammal. Pigured by 



{Fig.) Seeley in. the 'Quart. Journ. Geol. Soc' vol. xxxv. p. 456, 



figs. 1, 2. Presented hij S. P. Pratt, Esq., 1857. 



Subclass PEOTOTHEEIA. 



Order MONOTEEMATA. 



Family ECHIDNID.E. 



Genus ECHIDNA, Cuvier\ 



Syn. TacJiyglossus, lUiger ^. 



Proecliidna {Acanthoglossus), Gervais, is included for palaeontolo- 

 gical purposes in the type genus. 



Echidna oweni, Kreff^t \ 

 Syn. Echidna ramsayi, Owen ^. 



Considerably exceeding in size the existing E. hrmjnii of '^evr 

 Guinea. 



Eab. New South Wales. 



1 Tabl. element. d'Hist. Nat. p. 143 (1798). 



'^ Prod. Syst. Mainm. et Avium, p. 114 (1811). 



3 Ann. & Mag. Nat. Hist. ser. 4, vol. i. p. 113 (1868). 



* rhil. Trans. 1884, p. -273. 



