 | 1825 - 452 páginas
...half, broad, anterior half, before the eyes, tapering; the occiput is covered by the five first rows of the back plates, with which they are continuous ;...head is covered, first, by a row of large plates, rive in number, which are firmly attached to the bone beneath ; particularly the two outer ; — secondly,... | |
 | 1826 - 430 páginas
...anterior half, before the eyes, tapering ; the occiput is covered by the five first rows of the lack plates, with which they are continuous ; the occiput...covered with smaller plates irregularly disposed. with an enlarged cartilage, as in the hog ; the anterior wares opening downwards, nt the inferior border.... | |
 | 1837 - 1822 páginas
...half, broad, anterior half, before the eyes, tapering; the occiput is covered by the five first rows of the back plates with which they are continuous; the...smaller row, six in number, anterior to which, that i» to say, the top of th« snout, U covered with umallcr plates irregularly diipoted. Mr. Yarrell... | |
 | 1837 - 1040 páginas
...broad, anterior half, before the eyes, tapering ; the occiput is covered by the five first rows of the back plates with which they are continuous ; the...plates, five in number, which are firmly attached to the Done beneath, particularly the two outer ; secondly, by a smaller row, six in number, anterior to which,... | |
 | 1837
...occiput is covered by the five first rows of the back plates with which they are continuous ; the ccciput not distinguishable externally. The anterior half...first, by a row of large plates, five in number, which arc firmly attached to the bone beneath, particularly the two outer ; secondly, by a smaller row, six... | |
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The superior semicircular margin of the truncated surface, together with the lateral margins of the shell, are beautifully fringed with silky hair. Head: posterior half, broad, anterior half, before the eyes, tapering; the occiput is covered by the five... 