THE MALLEUS OP THE LAOERT[LIA, ETC 



591 



(Notes to the tabular statement on page 590.) 

 ' I observe the followiag arrangement iu Rhyncliosuclius Schlegelii 



Pstfr 



Rhynchosuchus Schlegelii. 



Tins fact will be made use of in a moment. 



2 Cuvier, ' Ossemens fossiles,' 1836, pi. 239, figs. 9—12, 



* Cuvier, Ice. cit., figs. 17—20. 



* A. Milne-Edwards, " Memoire sur le type d'une nouvelle famille de 

 I'ordre des Ronguers," ' Nouvelles Archives du Museum de Paris,' 1867, 

 p. 66 and pi. vii, figs. 1, 2, 3, 4. 



* The formula, as well as the preceding one, assumes that the quadrate 

 of M. Albrecht is really a quadrate. Otherwise we have : 



Pstfr 



Mammalia. 



that is to say, the structure of a Chelonian, in which the supra-temporal fossa 

 has remained open, and in which the quadrate has been withdrawn and trans- 

 formed into an auditory ossicle. 



« T. H. Huxley, 'A Manual, <S^c.,' p. 282. 



7 T. H. Huxley, ' A Manual, &c.,' p. 220, 



» T, H, Huxley, 'A Manual, &c.,' p. 233—238. 



9 T, H. Huxley, ' A Manual, &c.,' p. 230. 



i« T. H. Huxley, 'A Manual, &c.,' p. 225. 



>' T. H. Huxley, ' A Manual, &c.,' p. 228. 



» T. H, Huxley, ' A Manual, &c.,' p. 228. 



'^ Cuvier, loc, cit,, figs. 21 — 34. 



