...would obscure the facts, firstly, of the close relation and parallelism of the Nearctic and Palaearctic regions, not only now, but as far back as we can clearly...hemisphere. Owing to the much greater extent of the old Palaearctic region (including our Oriental) and the greater diversity of Mammalia it appears to have...

...firstly, of the close relation and parallelism of the Nearctic and Palaearctic regions, not only now, bat as far back as we can clearly trace them in the past...hemisphere. Owing to the much greater extent of the old Palœarctic region (including our Oriental) and the greater diversity of Mammalia it appears to have...

...firstly, of the close relation and llelism of the Nearctic and Palsearctic regions, not only now, is far back as we can clearly trace them in the past; and . XI. — KO. 3. 11 secondly, of the existing radical diversity of the Australian region from the rest...

...obscure the facts—firstly, of the close relation and parallelism of the Nearctic and Palaearctic regions, not only now but as far back as we can clearly...Australian region from the rest of the Eastern Hemisphere." The above conclusions of Wallace were arrived at on the basis of vertebrate distribution patterns,...

...obscure the facts—firstly, of the close relation and parallelism of the Nearctic and Palaearctic regions, not only now but as far back as we can clearly...Australian region from the rest of the Eastern Hemisphere." The above conclusions of Wallace were arrived at on the basis of vertebrate distribution patterns,...