402. Ss WEeWILEDSE ON; 
cate by association the phylogenetic relationships of the groups, but 
it must be remembered that opinions differ not a little concerning the 
phylogeny of the reptiles, and those expressed in this chart are merely 
the ones which seem most reasonable to myself. I am indebted to 
Dr. v. Huene for a number of suggestions and facts of distribution 
which have been incorporated in the table; and to Dr. W. D. Matthew 
I am also obliged for the data for the mammals. It is to be hoped 
that Dr. Matthew will confer a favor upon us all by publishing soon 
a complete table of the distribution and range of the mammals; no 
one is more competent. 
