 | Zoology - 1888 - 596 pages
...however, perhaps the most extraordinary of any mammal. It has only two teeth in the adult, both of which lie horizontally in the upper jaw. In the female both...permanently concealed within the bone of the jaw, so that tbis sex is practically toothless ; but in the male, while the right tooth remains similarly concealed... | |
 | British Museum (Natural History). Department of Zoology - Mammals - 1892 - 142 pages
...however, perhaps the most extraordinary of any mammal. It has only two teeth in the adult, both of which lie horizontally in the upper jaw. In the female both...while the right tooth remains similarly concealed and abortive (as shown in the skeleton by removal of part of the bone which covered it), the left is immensely... | |
 | William Henry Flower, British Museum (Natural History) - 1893 - 96 pages
...of its remarkable dentition, is the Narwhal or Sea- Narwhal. Unicorn. It has only two teeth, which lie horizontally in the upper jaw. In the female both...while the right tooth remains similarly concealed and abortive (as shown in the specimen, by removal of part of the bone which covered it), the left is immensely... | |
 | British Museum (Natural History). Department of Zoology - Exhibitions - 1894 - 142 pages
...perhaps the most extraordinary of any mammal. It has only two teeth in the adult state, both of which lie horizontally in the upper jaw. In the female both...while the right tooth remains similarly concealed and abortive (as shown in the skeleton by removal of part of the bone which covered it), the left is immensely... | |
 | Adolphe Boucard - History - 1894 - 226 pages
...It has only two teeth, both of which lie horizontally in the upper jaw. In the female, both remain concealed within the bone of the jaw, so that this...;, but in the male, while the right tooth remains concealed and abortive in general, the left is immensely developed, attaining more than half the whole... | |
 | Hummingbirds - 1891 - 202 pages
...the other interesting species can be seen the Narwhal or Sea Unicorn. It has only two teeth, which lie horizontally in the upper jaw. In the female,...while the right tooth remains similarly concealed and abortive (as shown in the specimen by removal of part of the THE HUMMING BIRD. bone which covered it),... | |
 | Hummingbirds - 1893 - 288 pages
...It has only two teeth, both of which lie horizontally in the upper jaw. In the female, both remain concealed within the bone of the jaw, so that this...toothless ; but in the male, while the right tooth remains concealed and abortive in general, the left is immensely developed, attaining more than half the whole... | |
 | Eugene Solomon Talbot - Pathology - 1905 - 570 pages
...lie horizontally in the upper jaw. In the female these remain permanently concealed within the bones of the jaw, so that this sex is practically toothless...while the right tooth remains similarly concealed and abortive (as shown in the skeleton by removal of part of the bone which covered it) the left is immensely... | |
 | British Museum (Natural History) - Vertebrates - 1906 - 1094 pages
...lie horizontally in the upper jaw. In the female these remain permanently concealed within the bones of the jaw, so that this sex is practically toothless...while the right tooth remains similarly concealed and abortive (as shown in the skeleton by removal of part of the bone which covered it), the left is immensely... | |
 | British Museum (Natural History). Department of Zoology - Mammals - 1914 - 146 pages
...lie horizontally in the upper jaw. In the female these remain permanently concealed within the bones of the jaw, so that this sex is practically toothless...while the right tooth remains similarly concealed and abortive (as shown in the skeleton by removal of part of the bone which covered it), the left is immensely... | |
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It has only two teeth in the adult state, both of which lie horizontally in the upper jaw. In the female both remain permanently concealed within the bone of the jaw, so that this sex is practically toothless ; but in the male, while the right tooth remains... 